New Project Wizard, Select a Project Type
You can select a type of project from this page of the wizard. This project type will determine the toolchain and data, and tabs that the CDT uses. Once created, C/C++ projects display in the C/C++ Projects view.
| Name | Function |
|---|---|
| Project Type | Specifies a project type from the list provided. |
| Show Project Types and toolchains only if they are supported on the platform | If checked (default), list is filtered so that only project
types that are buildable on the host system are shown. If unchecked, lists all known project types in the Project Type list. |
CDT projects (detailed information about project types)
Project types selection
Tutorial: Creating a simple application
Set Project Name and Location
Select Project type
Select toolchain
Select configurations


World News
Snap’s Chief Taps Into the ‘Right Now’
By KATIE BENNER
The Depp Conundrum: Who Should Keep Tabs on the Money?
By CHARLES DUHIGG


{% extends "global/Page.html" %} {% load otree static %} {% block title %} Introduction {% endblock %} {% block content %}
In the following experiment you have the opportunity to earn money depending on your behavior. Please turn off your mobile phone and do not talk to other participants in the experiment. It is very important that you follow these rules. If you have any question while reading these instructions or during the experiment itself, we ask you to raise your hand. We will immediately answer your question individually.
During the experiment you have the opportunity to do a task. The task consists of encoding combinations of letters (words) into numbers. In the task, three capital letters always yield a word. You have to allocate a number to each capital letter. The encryption code can be found in a table below the corresponding letter. The computer program randomly selects in the table a new set of three-digit numbers to be used for the encoding of the capital letters. Additionally, the computer program shuffles the position of the capital letters in the table. Please note that the program always uses all 26 capital letters of the German alphabet.
To make an input please click on the blue box below the first capital letter.
If all 3 numbers have been entered, please click the “Next” button.
You will only get paid for the words that are correctly solved.
Please click on the "Next" button if you are ready to start the task.
{% next_button %} {% endblock %}


This site is purely designed as an aid for me when playing Fallout 4
Feel free to use the tools, they are available AT YOUR OWN RISK
The code is released under the APACHE LICENSE V2 and is available from github
The site is hosted on openshift


What you should know about the SEO techniques allowed in Lilly. Make sure you implemented them all.
Find Out MoreAllow the Rewriting techniques. Make sure the technique used fits with the requirements in terms of URL settings.
More about this topic? or Continue?Make sure there is a TITLE tag in the HTML header section. Title tag should contain at least the main keyword.
More about this topic? or Continue?Allow one H1 if possible and many subsequent headings following the hierarchy.
More about this topic? or Continue?It is what appears in the descriptive part in SERP, after the Title page
More about this topic? or Continue?Not relevant, but not a penalty to fill it with relevant keywords
More about this topic? or Continue?Description of the image. Relevant per the images ranking and the page content identification
More about this topic? or Continue?
It is possible to use appropriately this tag in order to optimize the indexing.
A good example could be this:
Poor
< noscript >Your browser doesn't support Javascript< /noscript >
Good
< noscript >
Your browser doesn’t support javascript, so you can’t you’re your flight here.
Please contact us to book offline on our phone number +001 123 45 6789
< /noscript >
Avoid if possible. It could be used only if the sourced page comes from the same domain of the container page.
More about this topic? or Continue?
This is an important element for the SEO strategy. Every < a > tag has a specific HREF where it is defined
the destination URL (it could be also empty for specific purposes, like < a href=””>anchor text< /a >).
HREF should include the absolute URL, not only the relative path:
Poor
My Web Page
Good
My Web Page
All the < a > tags should include a Title parameter, especially for links to other domains/pages.
More about this topic? or Continue?Anchor text has be provided for each link. The best is to use text and not images if possible.
More about this topic? or Continue?Include a link tag in head section in order to include other languagers URLs.
More about this topic? or Continue?In the case more URLs will point to the same page include a canonical link in the head section in order to set the pages that could be considered duplicated will refer to the original (or the main) URL.
More about this topic? or Continue?
Follow the correct standards (ref: www.robotstxt.org).
Inlcude the URL of the sitemap.xml file if exists.
robots.txt file (all in lower case) needs to be placed in the top-level directory of a web server in order to be useful.
Example: www.domain.com/robots.txt
Set the correct Allow and Disallow commands.
Sitemap.xml should be automatically generated with a defined frequency or at least every time there is a
change in the existing pages (new page or deleted pages).
sitemap.xml will contain only pages allowed to be included in the list. Do not include in the sitemap more
than a URL that points to the same resource.
sitemap.mlx has to be located in the top-level directory of a web server OR where it has been specified
in the robots.txt file.
sitemap.xml should include the following details:
- Article URLs (this is mandatory)
- Images related to the article (this is recommended)
This is the URL where the image is located. The full URL should contain keywords. The structure should be built in
order to allow this setting.
Example:
< img src=”www.domain.com/images/keyword/picture-about-keyword1-and-keyword2.jpg” alt=”Alternative text provided by webmaster” title=”Short description of the image provided by webmaster” >
Alt parameter should describe effectively the image. Not just a generic text.
Text should be provided to Content Editor / Webmaster, or should be provided a
back end where Content Editor / Webmaster can populate the ALT parameter of each image.
Site Map is more for Search Engines than humans. It is recommended to create a schematic sitemap that displays the real schema of the web site following the real hierarchy of the structure.
More about this topic? or Continue?Contact the System Custodian or your Dedicated BI, you'll get helped on what's next!


BC Mapping Source
This structure represents the following BC mapping definition:
oncology.BreastSpecimen maps to Specimen: AccessionIdentifier maps to accessionIdentifier SpecimenStatus maps to status Type maps to type CollectionSource maps to subject CollectionSite.AnatomicalLocation maps to collection.bodySite CollectionMethod.CodeableConcept maps to collection.method SourceSpecimen maps to parent ReceivedTime maps to receivedTime SpecimenContainer.Identifier maps to container.identifier SpecimenContainer.Details maps to container.description SpecimenContainer.Type maps to container.type SpecimenContainer.Capacity maps to container.capacity SpecimenContainer.SpecimenQuantity maps to container.specimenQuantity SpecimenContainer.Additive maps to container.additive[x] ColdIschemiaTime maps to processing (slice on = procedure) ColdIschemiaTime.TimePeriod maps to processing.time[x] ColdIschemiaTime._Concept maps to processing.procedure constrain processing.additive to 0..0


Selected Projects
A selection of my previous projects.
Suicidal Ideation Detection from analyzing Tweets
In this project we analyzed english tweets dataset to detect suicidal ideation using BERT and later used multilingual model XLM-ROBERTa on english and spanish tweets dataset.
Bangla to English Machine Translation Using Seq2seq Model with Attention Mechanism
In this term project, we did an experiment on Neural Machine Translation(NMT) for Bangla to English Translation. We used a moderate size dataset containing 4379 sentence translations from English to Bangla. We used seq2seq encoder-decoder model containing Word2Vec and LSTMs with and without attention for small epochs. With finely tuned hyperparameters, we observed that using Bahdanau's attention with the vanilla encoder-decoder model improves the BLEU score for Bangla to English translation.
Posture Corrector using Arduino
In this work, we developed a posture corrector android application that can detect unusual bending of the user. The application is connected with a wearable device containing Arduino and flex sensor. A user wearing a dress containing the device gets a notification in his application if he bends in a way that is harmful to his posture. Later a small physical motor was also introduced with the device that will force the user to correct his posture in case he doesn't has his phone nearby. However, the work was done for term project purpose and not commercially deployable.
BD-Tourists : A cross platform application designed for travelers inside Bangladesh
In this term project, a cross-platform application was developed for travelers inside Bangladesh. Using the app, anyone can easily find the popular tourist places in Bangladesh, see user reviews and available accommodations nearby the place, view the places with high risks and get suggestions on how to avoid them. The project was deployed using AngularJs framework Ionic for frontend and a Python Django server for backend; the communication between frontend and backend was established using a REST API.
GlowHockey using ATMega32
In this term project, an android game named glowhockey was deployed in a board containing 4 LED matrices. The gamers could use the gyro sensor in their hands to move the glowing hockey sticks in the board. The sensors and LED matrix were governed by an ATMega32 microprocessor which was programmed in C
FoodiesDhaka : A Restaurant Rating Application
In this project, an application named FoodiesDhaka was developed using JavaFX and MySQL. In this application, the app users are provided with a choice of restaurants according to different areas in Dhaka city and they can see the user reviews and ratings for the restaurants. They can also suggest adding new restaurants in the list that can be further reviewed and checked by the admin side. The communication is done using Java Networking. However, the whole project was done in the localhost for term project purpose and is not deployable commercially.


data class ResultAd
Represents a ResultAd, with the given id, title, price, city, ad_images, owner_ad, description_ad. |
|
data class ResultUser
Represents a ResultUser, with the given session_id, id, first_name, last_name, email, tel_number, about. |


{% assign id = "/results/" | append: include.story-id %} {% assign stories = site.success-stories | where:"id", id %} {% for story in stories %}
{{ story.excerpt }}
{{ story.name }}
{{ story.jobTitle }}


HDU CakeMan
问题描述 :
If you ask one student of HDU “who is the superstar in HDU now?” ,the answer must be “HDU CakeMan” .He sells little cakes in the gate of the HDU students’ dormitory every day .As he says “做人要有小蛋糕精神,不怕风吹雨打,永远三块钱”.But he has no permission. So once seeing ChengGuan coming , he have to run home as fast as possible.
Now , ChengGuan is coming now. After some days investigation,ChengGuan have the map of HDU , and know the home of CakeMan, so can you tell me the minimum time ChengGuan cost to catch CakeMan?
Now , ChengGuan is coming now. After some days investigation,ChengGuan have the map of HDU , and know the home of CakeMan, so can you tell me the minimum time ChengGuan cost to catch CakeMan?
Once seeing ChengGuan coming, CakeMan will run home through a way which cost the least time , if there are more than one ways , he will randomly choose one ,so none knows which way he takes this time.
ChengGuan are be ordered to catch him today, so they want to know the nearest grid which CakeMan will surely pass (excluding the start point of CakeMan and CakeMan’s home).
输入:
The first line of input gives the number of cases, T (at most 90).
the first line of each case has four numbers n,m. (2<=n,m<=100)
then n lines with m characters describe the maze
‘D’ represents the init position of CakeMan.
‘S’ represents the position of the home of CakeMan.
‘C’ represents the position of the home of ChengGuan.
‘.’ represents the grids can be walked on.
‘X’ represents the wall which can not be stepped on.
‘A’ A is a integer between 0 and 9, represents the grid stands one HDU student who want A pack of Cake. when CakeMan pass on the grid has a integer on it ,he have to stay A seconds to sell cakes to the students (total costs A + 1 seconds to pass the grid), otherwise he pass the grid in one second. And the data makes sure that there must be at least one way to let CakeMan home.
the first line of each case has four numbers n,m. (2<=n,m<=100)
then n lines with m characters describe the maze
‘D’ represents the init position of CakeMan.
‘S’ represents the position of the home of CakeMan.
‘C’ represents the position of the home of ChengGuan.
‘.’ represents the grids can be walked on.
‘X’ represents the wall which can not be stepped on.
‘A’ A is a integer between 0 and 9, represents the grid stands one HDU student who want A pack of Cake. when CakeMan pass on the grid has a integer on it ,he have to stay A seconds to sell cakes to the students (total costs A + 1 seconds to pass the grid), otherwise he pass the grid in one second. And the data makes sure that there must be at least one way to let CakeMan home.
输出:
The first line of input gives the number of cases, T (at most 90).
the first line of each case has four numbers n,m. (2<=n,m<=100)
then n lines with m characters describe the maze
‘D’ represents the init position of CakeMan.
‘S’ represents the position of the home of CakeMan.
‘C’ represents the position of the home of ChengGuan.
‘.’ represents the grids can be walked on.
‘X’ represents the wall which can not be stepped on.
‘A’ A is a integer between 0 and 9, represents the grid stands one HDU student who want A pack of Cake. when CakeMan pass on the grid has a integer on it ,he have to stay A seconds to sell cakes to the students (total costs A + 1 seconds to pass the grid), otherwise he pass the grid in one second. And the data makes sure that there must be at least one way to let CakeMan home.
the first line of each case has four numbers n,m. (2<=n,m<=100)
then n lines with m characters describe the maze
‘D’ represents the init position of CakeMan.
‘S’ represents the position of the home of CakeMan.
‘C’ represents the position of the home of ChengGuan.
‘.’ represents the grids can be walked on.
‘X’ represents the wall which can not be stepped on.
‘A’ A is a integer between 0 and 9, represents the grid stands one HDU student who want A pack of Cake. when CakeMan pass on the grid has a integer on it ,he have to stay A seconds to sell cakes to the students (total costs A + 1 seconds to pass the grid), otherwise he pass the grid in one second. And the data makes sure that there must be at least one way to let CakeMan home.
样例输入:
1 4 9 ..X..S... ......... X...123.. D.......C
样例输出:
7
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Cc你也是在夏威夷的时候你老爸教你的么？
递归还真是一门学问，学习了
问题3中，GetRightPosition()和GetLeftPosition()与STL中的upper_bound()和lower_boune()的代码实现一样吗？
很高兴你会喜欢这个网站。目前还没有一个开发团队，网站是我一个人在维护，都是用的开源系统，也没有太多需要开发的部分，主要是内容整理。非常感谢你的关注。
已修改。一些字符在编辑的时候转义了
对，就是把这32位当成一个长度为32的数
你好，这题给出的代码好像弄错了，这个是pow那道题目的解法
这种二分还是比较经典！mark
具体实现上有所差别，但思路是一样的
整理的很好，学习了
代码不错，赞一个！
aha, welcome!
太好了，收藏
为避免精度问题，PI值请使用arccos(-1)。应该是acos
第一个真的要比较两次吗，换成else if 不可以吗


--- layout: project title: "Banners made using Photoshop" subtitle: "Advertising banner made for clients. 5FPS for Google Ads" background: '/img/posts/02.jpg' ---


Before we started the Dev Bootcamp Program we were asked to learn about Gregorc Thinking Styles, a way to model the mind's ability to perceive and order information. According to the theory, the mind possesses both concrete and abstract perceptive qualities, with variance between individuals. The mind also has varying ability to order information, both sequentially and randomly. We were asked to take a test that would measure these qualities in an empirical way, and it was quite interesting to learn the results.
Concrete perception is our ability to register information using our five senses, in the moment, here and now. Concrete perception is not concerned with subtext or conceptualizing, only what it can see. Abstract perception, on the other hand, is the quality of being able to understand things that can't be seen, to look beyond the obvious to see the implication behind everything. Abstract thinking allows the perception of ideas and concepts within our mind.
Our minds also possess both sequential and random ordering abilities. Sequential ordering is a linear, step-by-step approach to making sense of information. A person with strong sequential ordering skills might be very comfortable making a plan and following it, preferring a logical start-to-finish approach. In contrast, random ordering skills allow us to organize information in a more fluid manner, processing information in chunks. This gives us the ability to skip steps or work backwards when solving a problem.
Although everybody possesses these perceptual and ordering qualities, over time we begin to develop a pattern that we feel comfortable using. The test we were given purports to measure our preferred style of thinking by giving us 4 words and asking us to choose the two that we feel best describes us. If you'd like to take the test yourself you can find a link HERE.
I took the test and scored highest in the concrete-random category, which I feel is a fair assessment. According to the information provided I learn best when allowed to experiment and solve problems independently. It also warns that I may have a hard time with routines and keeping detailed records, things that I have indeed struggled with. Overall I found the model and test very accurate, and I will have to consider more closely how these things affect my ability to learn here at DBC.
I created a Ruby command-line program that automates the Thinking Styles test, you can find it on the PROJECTS PAGE.


Encrypted Containers¶
Users can build a secure, confidential container environment by encrypting the root file system.
Overview¶
In Singularity >= v3.4.0 a new feature to build and run encrypted containers has been added to allow users to encrypt the file system image within a SIF. This encryption can be performed using either a passphrase or asymmetrically via an RSA key pair in Privacy Enhanced Mail (PEM/PKCS1) format. The container is encrypted in transit, at rest, and even while running. In other words, there is no intermediate, decrypted version of the container on disk. Container decryption occurs at runtime completely within kernel space.
Note
This feature utilizes the Linux dm-crypt
library and cryptsetup
utility and requires cryptsetup version of >= 2.0.0. This version
should be standard with recent Linux versions such as Ubuntu 18.04,
Debian 10 and CentOS/RHEL 7, but users of older Linux versions may have
to update.
Encrypting a container¶
A container can be encrypted either by supplying a plaintext passphrase or a PEM file containing an asymmetric RSA public key. Of these two methods the PEM file is more secure and is therefore recommended for production use.
Note
In Singularity 3.4, the definition file stored with the container will
not be encrypted. If it contains sensitive information you should remove
it before encryption via singularity sif del 1 myimage.sif
. Metadata
encryption will be addressed in a future release.
An -e|--encrypt
flag to singularity build
is used to indicate that the container needs to
be encrypted.
A passphrase or a key-file used to perform the encryption is supplied at build time via an environment variable or a command line option.
Encryption Method |
Environment Variable |
Commandline Option |
Passphrase |
|
|
Asymmetric Key (PEM) |
|
|
The -e|--encrypt
flag is implicitly set when the --passphrase
or
--pem-path
flags are passed with the build command. If multiple encryption
related flags and/or environment variables are set, the following precedence is
respected.
--pem-path
--passphrase
SINGULARITY_ENCRYPTION_PEM_PATH
SINGULARITY_ENCRYPTION_PASSPHRASE
Passphrase Encryption¶
Note
Passphrase encryption is less secure than encrypting containers using an RSA key pair (detailed below). Passphrase encryption is provided as a convenience, and as a way for users to familiarize themselves with the encrypted container workflow, but users running encrypted containers in production are encouraged to use asymmetric keys.
In case of plaintext passphrase encryption, a passphrase is supplied by one of the following methods.
Encrypting with a passphrase interactively¶
$ sudo singularity build --passphrase encrypted.sif encrypted.def
Enter encryption passphrase: <secret>
INFO: Starting build...
Using an environment variable¶
$ sudo SINGULARITY_ENCRYPTION_PASSPHRASE=<secret> singularity build --encrypt encrypted.sif encrypted.def
Starting build...
In this case it is necessary to use the --encrypt
flag since the presence of
an environment variable alone will not trigger the encrypted build workflow.
While this example shows how an environment variable can be used to set a
passphrase, you should set the environment variable in a way that will not
record your passphrase on the command line. For instance, you could save a
plain text passphrase in a file (e.g. secret.txt
) and use it like so.
$ export SINGULARITY_ENCRYPTION_PASSPHRASE=$(cat secret.txt)
$ sudo -E singularity build --encrypt encrypted.sif encrypted.def
Starting build...
PEM File Encryption¶
Singularity currently supports RSA encryption using a public/private key-pair. Keys are supplied in PEM format. The public key is used to encrypt containers that can be decrypted on a host that has access to the secret private key.
You can create a pair of RSA keys suitable for encrypting your container with
the ssh-keygen
command, and then create a PEM file with a few specific flags
like so:
# Generate a keypair
$ ssh-keygen -t rsa -b 2048
Generating public/private rsa key pair.
Enter file in which to save the key (/home/vagrant/.ssh/id_rsa): rsa
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
[snip...]
# Convert the public key to PEM PKCS1 format
$ ssh-keygen -f ./rsa.pub -e -m pem >rsa_pub.pem
# Rename the private key (already PEM PKCS1) to a nice name
$ mv rsa rsa_pri.pem
You would use the rsa_pub.pem
file to encrypt your container and the rsa_pri.pem
file to run it.
Encrypting with a command line option¶
$ sudo singularity build --pem-path=rsa_pub.pem encrypted.sif encrypted.def
Starting build...
Encrypting with an environment variable¶
$ sudo SINGULARITY_ENCRYPTION_PEM_PATH=rsa_pub.pem singularity build --encrypt encrypted.sif encrypted.def
Starting build...
In this case it is necessary to use the --encrypt
flag since the presence of
an environment variable alone will not trigger the encrypted build workflow.
Running an encrypted container¶
To run
, shell
, or exec
an encrypted image, credentials to decrypt
the image need to be supplied at runtime either in a key-file or a plaintext
passphrase.
Running a container encrypted with a passphrase¶
A passphrase can be supplied at runtime by either of the ways listed in the sections above.
Running with a passphrase interactively¶
$ singularity run --passphrase encrypted.sif
Enter passphrase for encrypted container: <secret>
Running with a passphrase in an environment variable¶
$ SINGULARITY_ENCRYPTION_PASSPHRASE="secret" singularity run encrypted.sif
While this example shows how an environment variable can be used to set a
passphrase, you should set the environment variable in a way that will not
record your passphrase on the command line. For instance, you could save a
plain text passphrase in a file (e.g. secret.txt
) and use it like so.
$ export SINGULARITY_ENCRYPTION_PASSPHRASE=$(cat secret.txt)
$ singularity run encrypted.sif
Running a container encrypted with a PEM file¶
A private key is supplied using either of the methods listed in the Encryption section above.
Running using a command line option¶
$ singularity run --pem-path=rsa_pri.pem encrypted.sif
Running using an environment variable¶
$ SINGULARITY_ENCRYPTION_PEM_PATH=rsa_pri.pem singularity run encrypted.sif


{%load static pref%} {%comment "SyncLineNumber"%} The line number is aligned with "./scripts.html". You can view it by belows commands: vim -o scripts.html loading.html -c "set nowrap" {%endcomment%} {%comment "EndSyncLineNumber"%}{%endcomment%}


Update 28.01.16
I found some sites referring to this post. Below are the common complaints I saw, and my replies:
-
I'm criminally bad with setting up OpenVPN, meaning the testing is completely off
I'm not an expert in networking, but I have a working knowledge of it and I spent around 2 work days on messing around with the OpenVPN parameters. This is as good as I got, compared to the SSH setup which required no optimization.
I'll be delighted to see a better-performing OpenVPN config. Here is how to recreate my testing:- One machine on each AWS region
US-EAST-1
,EU-WEST-1
- Size
c3.4xlarge
(I think) - Vanilla CentOS 6 OS
- No interface configuration (can be modified if needed)
- All packages installed from CentOS repo
Make sure you show your configuration and your results!
- One machine on each AWS region
-
Comparing OpenVPN and SSH tunneling is like apples and oranges
This is nonsense. I had 2 tools to solve my issue. I tuned them both to the bst of my ability and tested them. One outperformed the other, so I chose it.
Also, have a comment section, and I'll be happy if people with interesting replies drop me a line down there so I can learn something new.
Finally, I fixed my diagrams below.
The Story
I was asked to take care of a security challange - setup Redis replication between two VMs over the internet.
The VMs were in different continents, so I had keep the bandwidth impact to a minimum.
I thought of 3 options:
stunnel
, which uses tunnels TCP connections via SSL- SSH, which has TCP tunneling over it's secure channel (amongst its weponary)
- OpenVPN, which is designed to encapsulate, encrypt and compress traffic among two machines
I quickly dropped stunnel because its setup is nontrivial compared to the other two (no logging, no init file...), and decided to test SSH and OpenVPN.
I was sure that when it comes to speed, OpenVPN will be the best, because:
- The first Google results say so (and they even look credible)
- Logic dictates that SSH tunneling will suffer from TCP over TCP, since SSH runs over TCP
- OpenVPN, being a VPN software, is solely designed to move packets from one place to another.
I was so sure of that, that I almost didn't test.
I was quite surprised.
Test 1
I only compared speed, since I decided the encryption of both programs will be enough.
My test consisted of this procedure:
- Create a functioning, data-filled Redis instance in
server A
, port 6379 - Start an empty Redis instance in
server B
, port 6379 - Setup tunneling (according to the method I was testing)
- Execute
redis-cli -p 6379 slaveof <Target port>
onserver B
- Wait for
MASTER <-> SLAVE sync started
to appear onserver B
's Redis - Wait for
MASTER <-> SLAVE sync: Finished with success
to appear onserver B
's Redis - Cleanup
I recorded the time it took server B
to go from step 5 to step 6, effectivly measuring the duration of a full replication.
The Redis data set was about 1GB. Not the biggest I've ever seen, but enough for my tests.
I played around with a few parameters, and these are my results:
| platform | protocol | compression | duration |
|---|---|---|---|
| OpenVPN | TCP | no | 21m |
| yes | 15m | ||
| UDP | no | 6m | |
| yes | 5m | ||
| SSH | TCP | default | 1m50s |
| no | 1m30s | ||
| yes | 2m30s |
As you can see, SSH beats OpenVPN. By far.
I was surprised to see this, so I did some additional tests, using iperf
.
Test 2
My second test utilized iperf
, and I left OpenVPN compression on, because disabling it clearly wasn't helping.
Server A was running the iperf server, using iperf -s
.
Server B was running the iperf client, using iperf -c <SERVER ADDRESS> -p <PORT>
.
Below is my test summary.
| platform | protocol | encrpytion | speed (Mb/s) |
|---|---|---|---|
| OpenVPN | TCP | BlowFish | 13 |
| AES-256-CBC | 12 | ||
| UDP | BlowFish | 43 | |
| AES-256-CBC | 36 | ||
| SSH | TCP | AWS128-CTR | 91 |
Although the gap is reduced, SSH stil wins. After some helpful hints at ServerFault, I understood why, contrary to public opinion, SSH is faster.
The solution
The difference between SSH and OpenVPN, giving SSH its edge, is on which OSI layer they work.
OpenVPN
Being a VPN service, OpenVPN can operate as:
TUN
, a level 3 (IP) deviceTAP
, a level 2 (MAC) device
Being a network device allows OpenVPN to support diverse protocols (anything over IP with TUN
and anything over Eth802.3 with TAP
) with diverse destinations (different IP addresses, broadcasts etc.) and diverse ports. However, to do that, it has to preserve the original packet structure, so it has to take most of the original packet, wrap it in its own packet (to encrypt and give it a new destination), and send it to ther other OpenVPN instance, where it's unpacked.
This generates overhead, like this:
SSH connection forwarding
On the other hand, SSH connection forwarding operates at layer 4 (TCP). Because of that, you can only forward one port (unless you're using dynamic forwarding, which has its own overhead), and it has to be on TCP/IP. However, because SSH operates at a higher OSI layer, less of the original data has to be preseved, so it has less overhead. It looks like this:
Some SSH netstat
s
I recorded my socket status when running redis-cli
over SSH forwarding.
The redis server is listening on port 6379, and the forwarding is on port 20000.
The commands I used are:
ssh -f <SERVER IP> -L 20000:<IP_ADDRESS>:6379 -N
redis-cli -p 20000
I removed the listening sshd
socket, because it's irrelevant.
Before running redis-cli
, we can see SSH has an established a tunnel and listening localhost
socket on the client
backslasher@client$ netstat -nap | grep -P '(ssh|redis)'
...
tcp 0 0 <IP_ADDRESS>:20000 <IP_ADDRESS>:* LISTEN 20879/ssh
tcp 0 0 <IP_ADDRESS>:53142 <SERVER IP>:22 ESTABLISHED 20879/ssh
...
backslasher@server$ netstat -nap | grep -P '(ssh|redis)'
...
tcp 0 0 <IP_ADDRESS>:6379 <IP_ADDRESS>:* LISTEN 54328/redis-server
tcp 0 0 <SERVER IP>:22 <CLIENT IP>:53142 ESTABLISHED 53692/sshd
...
After running redis-cli
, we can see the redis socket on the server, originating from sshd
backslasher@client$ netstat -nap | grep -P '(ssh|redis)'
...
tcp 0 0 <IP_ADDRESS>:20000 <IP_ADDRESS>:* LISTEN 20879/ssh
tcp 0 0 <IP_ADDRESS>:20000 <IP_ADDRESS>:53142 ESTABLISHED 20879/ssh
tcp 0 0 <IP_ADDRESS>:53142 <IP_ADDRESS>:20000 ESTABLISHED 21692/redis-cli
...
backslasher@server$ netstat -nap | grep -P '(ssh|redis)'
...
tcp 0 0 <IP_ADDRESS>:6379 <IP_ADDRESS>:* LISTEN 54328/redis-server
tcp 0 0 <IP_ADDRESS>:6379 <IP_ADDRESS>:42680 ESTABLISHED 54328/redis-server
tcp 0 0 <IP_ADDRESS>:42680 <IP_ADDRESS>:6379 ESTABLISHED 54333/sshd
tcp 0 0 <SERVER IP>:22 <CLIENT IP>:53142 ESTABLISHED 52889/sshd
...
As we can see, SSH creates a loopback port on both client and server, so neither address each other directly.
Thanks to that, this information (client IP/port, server IP/port) doesn't have to be transferred, saving overhead.
TL;DR
As long as you only need one TCP port forwarded, SSH is a much faster choice, because it has less overhead.


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Turkey says US national sent home as Ankara begins repatriating captured IS fighters
by Associated PressANKARA, Turkey (AP) -- Turkey says a U.S. national who is a member of the Islamic State group has been deported home as Ankara begins repatriating captured foreign IS fighters.
ROCKETS FIRED AT BASE WITH US TROOPS
Interior Ministry's spokesman Ismail Catakli also said on Monday that seven German nationals would be returned on Nov. 14. There was no immediate information on the IS suspects.
Turkey has over the past weeks criticized European nations for refusing to take back their nationals. It has vowed to send back IS militants -- even if their citizenships have been revoked.
Interior Minister Suleyman Soylu has said that Turkey is not a hotel for IS militants and that Ankara would begin repatriating IS militants as of Monday.
Soylu did not provide any numbers or say which countries they would be sent back to.


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--- layout: post title: Mountain Lion App Store + previous install of Growl == unhappy date: 2012-09-04 15:17:30.000000000 -07:00 type: post published: true status: publish categories: tags: [] meta: _edit_last: '1' author: login: admin email<EMAIL_ADDRESS>display_name: admin first_name: Carina C. last_name: Zon ---
The new Notifications Center in Mountain Lion is a pale, pale imitation of good ol' Growl. But after upgrading OSX, the App Store refused to update Growl. Upon clicking the "update" button, the store kept complaining:
"You have updates available for other accounts. To update this application, sign in to the account you used to purchase it."
Don't believe it. At least, don't assume it's returning a correct error message for your situation. While some people do purchase software under multiple accounts, this wasn't the case here.
The App Store doesn't know how to cope with a previous Growl install — even one purchased through the store and not currently running.
Voila. The App Store's "upgrade" button is replaced by "install". Smooth sailing from there. Including notifications that are top-rate. Hurrah.


Getting started with push notifications¶
What are push notifications?¶
Nobackend provides a RESTful framework for sending push notifications to your apps, giving you full control over which app users you target, as well as when you send notifications. You can send messages to devices, users, or groups that have specific characteristics and locations. (To receive push notifications, users must be using devices that can connect to the Nobackend). Here are just a couple reasons for enabling push notification support in your app with Nobackend:
- Reach your app’s users with messages they care about. This could be a flash sale happening near them right now (use Geolocating your Entities) or a lunch special at a favorite restaurant. You could even let a user know it’s her turn in a game she’s playing with a friend.
- Keep your app footprint low while communicating in a high-value way with your app’s users. Compare pushing data with CPU- and memory-heavy pull processes. In those, an app actively listens on an endpoint, regularly pulling data (such as news feeds, new emails, or stock market updates) to the device.
Prerequisites¶
You will need to test with a mobile device running the platform you’re developer for. In the case of Android, you might be able to use an emulator. It is not possible to test push notifications from a web browser.
iOS Prerequisites¶
To develop push notifications for an iOS app, you’ll need:
- A Mac to generate the necessary SSL certificate.
- An iOS developer account. You’ll need this to register for an App ID and get a provisioning profile. To get an account, visit the [iOS Dev Center](https://developer.apple.com/ios/download/).
- An actual iOS device to test push notifications. It’s not yet possible to develop push notifications with an emulator.
- An iOS provisioning profile
For iOS app testing, you need a provisioning profile that’s associated with an Apple ID. You set up the provisioning profile in the Apple developer portal, download the profile, and import it into Xcode.
To set up a provisioning profile, you need to create an “iOS App Development” certificate in the Apple developer portal. For example, in the Apple APNs setup earlier in this tutorial, you created a certificate in the Apple developer portal to be used for push notifications. However, you won’t be able to create a provisioning portal with just that certificate. You also need to create an “iOS App Development” certificate (the configuration settings don’t matter), as shown in the following image.
After you create an iOS App Development certificate, you can create a provisioning profile that includes your App ID/certificate for push notifications.
Android Prerequisites¶
It’s generally a best practice to develop Android apps by testing and debugging with an Android device. It’s also possible to use an emulator.
Before testing and debugging with an Android device, you’ll need to set up your device for development. Be sure to see the Android documentation on [using hardware devices](http://developer.android.com/tools/device.html).
To test with an emulator, you will need to follow these steps:
- Ensure that you have Google API 8 (or above) and Android 2.2 (or above).
- Using the Android SDK Manager, install Google Cloud Messaging for Android Library.
- Using the Android Virtual Device Manager, create an emulator whose target is Google APIs.
- Ensure that the emulator you’re using includes a Google account.
Next:
- Launch the emulator.
- In the emulator, click the Menu button, then go to Settings > Accounts & Sync.
- Add a Google account.
- Once you’ve finished these steps, you should have an emulator that can receive push notification messages.
PhoneGap Prerequisites¶
You’ll need to test with a device or emulator. It is not possible to test push notifications with a browser alone.
Setup overview¶
The following steps get you set up so that your app can receive push notifications. Keep in mind that these steps build on one another. In other words, you’ll need values generated in step 1 in order to complete step 2, and so on.
For a walkthrough of these steps using a push sample app, see Tutorial: Push notifications sample app.
- Register your app with push notification services. Your notification messages will be forwarded to devices by Apple and/or Google. So you’ll need to register with Apple APNs and/or Google’s GCM. For more information, see Registering with a notification service.
2. Create a notifier to send notification messages from the Nobackend to notification services. The Nobackend will use your notifier to send your messages to a notification service. For details, see Creating notifiers. To create a notifier, you’ll need information generated by registering with a push notification service. You’ll need a separate notifier for each app/platform combination.
3. Register devices at run time. At run time, your code will register to receive notifications. To do this, your code uses information from the notification service and your notifier. For more, see Managing users and devices.
4. Send and manage push notifications. You use Nobackend API notification endpoints to target devices, users, or groups with your messages. To learn more, see Creating and managing notifications.
How it works¶
Click a tab below to view more information about how the pieces connect once you’ve got it set up.
Apple APNs¶
The diagram below illustrates what things should look like once you’ve gotten set up to send notifications that are received by your app.
A.  The .p12 certificate correlates the notifier (which you will use to send notification messages) with the App ID (so that APNs will forward your notifications to devices).
B. A run time, your app’s code Managing users and devices by invoking the registerForRemoteNotificationTypes
method to receive a token it can send to Nobackend.
C. At run time, your app’s code Managing users and devices by sending the name of the notifier you created. This ensure’s that there’s a device entity in your Nobackend application. That way, you can address the device with notification messages.
Google GCM¶
The diagram below illustrates what things should look like once you’ve gotten set up to send notifications that are received by your app.
A. At configuration time, you Registering with a notification service, then Creating Notifier with an API key from the project. The API key correlates the notifier (which you will use to send notification messages from the Nobackend) with the API project (which will forward your notifications to devices).
B. At run time, your app’s code Managing users and devices for notifications by sending the name of the notifier you created. This ensure’s that there’s a device entity in your Nobackend application. That way, you can address the device with notification messages.
C. A run time, your app’s code registers with Google for notifications Managing users and devices by sending the number of your API project as a “sender ID”. The project is the actual notification “sender” that will forward notifications to your app. In other words, the app is telling Google that it wants to receive notifications from that sender.


Unlocked Motorola Moto G6 For Just $119 – Amazon Black Friday 2019 Deals
Today, for Black Friday you can get your hands on an unlocked Moto G6 for just $119. You're saving more than 50-percent on the Moto G6 today, thanks to this sale, making this a really great time to pick one up.
The Moto G6 is part of Motorola's best-selling smartphone line ever. And it's also a really good device. We're looking at a 5.7-inch Full HD+ display, a Snapdragon 450 chipset, 3GB of RAM and 32GB of storage. There is a micro SD card slot available for expanding storage, and it also supports Adoptable Storage. Allowing you to format that storage as internal storage for apps and games.
There's a dual-camera setup around the back, with a 12-megapixel main sensor and a 5-megapixel secondary sensor. This secondary sensor is actually just a depth sensor. So don't expect to be able to switch between the two.
Advertisement
The Moto G6 is also one of the few smartphones around now that has a capacitive fingerprint sensor, located below the screen. While most smartphones are putting them underneath the screen – and they really don't work that well – Motorola has stuck with what works. So if that is something that you need, then the Moto G6 is a good option.
There is also Alexa included here. It's nothing super special. Basically you're getting the Alexa app pre-installed here. You can uninstall it if you wish, though. With Alexa on-board you'll be able to ask her questions without even opening your phone. That means that the Moto G6 has both Amazon Alexa and Google Assistant included. So no matter which assistant you prefer, you'll be covered.
The Moto G6 is unlocked and will work on all four US carriers. That includes AT&T, Sprint, T-mobile and Verizon in the US.
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You can pick up the unlocked Moto G6 from Amazon by clicking here.


Meeting Room Maintenance Report System
Username
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My background is in Marketing and Business Administration. Until recently, I have been working in the B2B Sales and IT consulting fields as my professional career. However, I recenlty made a decision to pivot my career a bit, and enrolled into a coding bootcamp called Epicodus. My goal is to learn the basics of full-stack development. In turn, I will be able to further explore other related languages and skills, such as Python, NoSQL, and Hadoop. Ultimately, I am planning to work with Big Data and Business Analytics.
A simple web page for an imaginary resort island. Tools used: HTML and CSS.
Another sample web page for my favorite band Slightly Stoopid to practice floats. Tools used: DIV, margin, and float in HTML and CSS.
Using images, paragraphs, and containers to create a blog. Tools used: DIV, ID, and Bootstrap CSS.
Simple web page for an animal shelter with responsive stacking of sections based on the width of a device screen. Tools used: Media queries, CSS, HTML, and floats.


import PortfolioListController from 'gulp4-boilerplate/components/PortfolioListController.js'
PortfolioListController
interactive portfolio list with webGL preview interaction powered by PIXI.js
Constructor Summary
| Public Constructor | ||
| public |
|
Member Summary
| Public Members | ||
| public |
DOM: {navigation: string, states: {navigationSlideUp: string, navigationScrolled: string, navigationFixed: string}} Navigation DOM selectors Navigation DOM state CSS classes |
|
| public |
app: * |
|
| public |
|
|
| public |
portfolio: Element |
|
| public |
portfolioCanvas: Element |
|
| public |
portfolioItems: NodeListOf<Element> |
|
| public |
portfolioPreviewItems: NodeListOf<Element> |
|
| public |
portfolioPreviewList: Element |
Method Summary
| Public Methods | ||
| public |
init() |
|
| public |
|
|
| public |
|
|
| public |
portfolioItemMouseenter(index: *) |
|
| public |
|
|
| public |
portfolioMousemove(ev: *) |
Public Constructors
public constructor() source
Public Members
public DOM: {navigation: string, states: {navigationSlideUp: string, navigationScrolled: string, navigationFixed: string}} source
Navigation DOM selectors Navigation DOM state CSS classes
public app: * source
public displacementTimeline: * source
public portfolio: Element source
public portfolioCanvas: Element source
public portfolioItems: NodeListOf<Element> source
public portfolioPreviewItems: NodeListOf<Element> source
public portfolioPreviewList: Element source
Public Methods
public init() source
public portfolioController() source
public portfolioEvents() source
public portfolioItemMouseenter(index: *) source
Params:
| Name | Type | Attribute | Description |
| index | * |
public portfolioItemMouseleave() source
public portfolioMousemove(ev: *) source
Params:
| Name | Type | Attribute | Description |
| ev | * |


--- layout: post title: Daily Poem 19 date: 2014-10-23 08:00:55.000000000 -05:00 categories: - Poetry tags: - 5-7-5 - haiku - poem - poetry status: publish type: post published: true meta: mkd_text: |- Little field mouse scurrying by the tracks - Will you take my train? _edit_last: '15848442' geo_public: '0' _publicize_pending: '1' publicize_facebook_url: https://facebook.com/10152806892158966 _wpas_done_7955695: '1' _publicize_done_external: a:1:{s:8:"facebook";a:1:{i:824388965;b:1;}} publicize_google_plus_url: https://plus.google.com/114804560735441528752/posts/MZZgELo8Aui _wpas_done_7873267: '1' author: ---
Little field mouse
scurrying by the tracks -
Will you take my train?


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If the download does not start automatically, please make use this download link.


Former India opener Wasim Jaffer becomes first player to make 150 Ranji Trophy appearances
by Scroll StaffWasim Jaffer on Monday became the first player in Indian cricket to feature in 150 Ranji matches.
The 41-year-old from Maharashtra, who has been an important part of the title-winning Vidarbha team in the last two years, achieved the rare distinction during their Group A opener against Andhra Pradesh in Vijayawada.
The former India opener is also less than 1000 runs away from completing 20,000 runs in first class cricket.
Jaffer, who became the most-capped player in tournament’s history last season, is followed by Madhya Pradesh batsman Devendra Bundela (145 matches) and Amol Muzumdar (136 matches), who have played for Mumbai and Assam.
Overall, Jaffer has played 253 first-class games, scoring 19,147 runs at an average of 51.19. He has scored 57 hundreds and 88 fifties with 314 being his highest score.
The Mumbaikar has represented India in 31 Tests between 2000 and 2008, scoring 1944 runs which included five hundreds and 11 fifties. He also has a double hundred to his name – a highest score of 212 against West Indies in 2006 at St John’s. He also played two ODIs for India.
Also read: Rahane and Shaw shine for Mumbai, Padikkal shows grit, Vihari stands apart
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WELCOME!!
Hypertext Markup Language (HTML) is the standard markup language for documents designed to be displayed in a web browser. It can be assisted by technologies such as Cascading Style Sheets (CSS) and scripting languages such as JavaScript. Cascading Style Sheets (CSS) is a style sheet language used for describing the presentation of a document written in a markup language such as HTML. CSS is a cornerstone technology of the World Wide Web, alongside HTML and JavaScript. JavaScript often abbreviated as JS, is a programming language that conforms to the ECMAScript specification. JavaScript is high-level, often just-in-time compiled, and multi-paradigm. It has curly-bracket syntax, dynamic typing, prototype-based object-orientation, and first-class functions. Below are video tutorials from Youtube on HTML, CSS and JavaScript.
What is your favorite language amongst the below?
Most popular programmers on the Internet
Popular Programming Languages, Jobs and Average Salaries
| Programming Language | Number of Jobs in 2021 | Average annual salary | |
| Rank 1 | Python | 19,000 | $120,000 |
| Rank 2 | JavaScript | 24,000 | $118,000 |
| Rank 3 | Java | 29,000 | $104,000 |
| Rank 4 | C# | 18,000 | $97,000 |
| Rank 5 | C | 8000 | $97,000 |
| Rank 6 | C++ | 9000 | $97,000 |
| Rank 7 | Go | 1700 | $93,000 |
| Rank 8 | R | 1500 | $93,000 |
| Rank 9 | Swift | 1800 | $93,000 |
| Rank 10 | PHP | 7000 | $81,000 |


The TokenAsia Index is a market-cap based index that measures the performance of the large-cap Tokensale market. The Index is currently made up of 10 members and serves as a representation for the performance of the market as a whole. It is calculated using CoinMarketCap data and updated every Tick. Read more...
It has three components:
Two Conditions to select the Tokens:
So, Total no. of shortlisted currencies on the above basis are as follows:
Index will list at 10000 points.
50% of the Index. In the ratio of their Market Capital. Rounded off to the lowest integer. So, Total Market Capital of above 5 Tokens = 5000 points
Same ratio for each currency i.e 500 points each
Total of 2500 points.
Same Ratio for all the selected currencies.
500 points to each currency.
So total is 2500 Points.
The value of the Index is calculated on every tick value according to the ratio decrease or increase of the above components accordingly.
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About Catherine
Where Are You From?
I am from Asheville, NC
Where Did You Go to College?
I went to Boston University
What Was Your Most Recent Job?
I recently moved to Seattle from Olympia where I was working at the Evergreen State College in the financial aid office.
Top 10 Favorite Trees
- Willow
- Birch
- Fir
- Dogwood
- Maple
- Oak
- Apple
- Palm
- Magnolia
- Walnut


Sparsity-promoting denoising of seismic data
This application is available only in the software release for members of SINBAD consortium.
This package contains a MATLAB implementation of sparsity-promoting denoising of seismic data in the curvelet domain using one-norm minimization. For details, please see Reference [1].
Author: Haneet Wason<EMAIL_ADDRESS>Date: December, 2015
Contents
Downloading & Dependencies
The code can be found in the SLIM sofware release under /applications/Processing/SparsityPromotingDenoising/.
The code has been tested with Matlab R2014b.
This code uses the following packages, also found in the tools part of the SLIM software release.
- utilities/SPOT - object oriented framework for matrix-free linear algebra.
- utilities/SegyMAT - Matlab/Octave toolbox for reading and writing SEG-Y formatted files.
- solvers/SPGL1-SLIM - SLIM version of SPGL1 solver.
- transforms/CurveLab-2.1.2-SLIM - curvelet transform functions.
Running
All the examples and results are produced by the scripts found in this software release under applications/Processing/SparsityPromotingDenoising/. Start matlab from that directory or run startup in that directory to add the appropriate paths.
To run the scripts follow the instructions in the README file enclosed with the code. The scripts are run in serial mode.
Examples and results
Examples of denoising frequency slices (extracted from a 3D seismic data cube) are shown here.
References
[1] SLIM's research webpage on processing. See the 'Denoising' section (https://slim.gatech.edu/research/processing#denoising-via-hybrid-support-identification-and-projection).
[2] Felix J. Herrmann, Andrew J. Calvert, Ian Hanlon, Mostafa Javanmehri, Rajiv Kumar, Tristan van Leeuwen, Xiang Li, Brendan Smithyman, Eric Takam Takougang, and Haneet Wason [2013].
Acknowledgements
Thanks to our sponsors and NSERC for their financial support.


{% extends "admin/base.html" %} {% block title %}{% if form.instance %}Edit{% else %}New{% endif %} Post{% endblock %} {% block body %}

for (i=0; i<10; i++) { console.log(i); }

(aka opportunities for this customisation of Bloggart to be improved.)
External images URLs are downloaded and stored locally, so no worries about bandwidth theft. In the event you want to customise an image's style, just include the image normally, which will cause it to download, and then preview the post, which will let you see the image's new URL, and you can then link to this one.
For now, a new image is downloaded each time you update the post.
For now, if you specify a bad image URL, the form will silently return.


Friendly greeting page.
The page has been created for testing purposes.
The text of the page is licensed to the public under a Creative Commons Attribution 4.0 license.


|
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| PREV PACKAGE NEXT PACKAGE | FRAMES NO FRAMES |
| Class Summary | |
|---|---|
| Chart | Class from PEN Parser. |
| ChartRow | Class from PEN Parser. |
| EarleyParser | Class from PEN Parser. |
| Grammar | Class from PEN Parser. |
| GrammarValidator | Class from PEN Parser. |
| Outputter | Class from PEN Parser. |
| PenSentence | Class from PEN Parser. |
| PhraseRule | Class from PEN Parser. |
| Rule | Class from PEN Parser. |
| SemanticNode | Class from PEN Parser. |
| Sentence | |
| SimpleSentence | |
| TerminalRule | Class from PEN Parser. |
| Exception Summary | |
|---|---|
| GrammarException | Class from PEN Parser. |
|
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| PREV PACKAGE NEXT PACKAGE | FRAMES NO FRAMES |


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%- include ('partials/head.html')%>
<%- include ('partials/navigation.html')%>Formed in Grecia, Alajuela in 2020, Cydemic decided exploring the edge between Death Metal, Industrial Metal and Cyber sound effects focusing their lyrics on a technologically consumed world. Cydemic's sound was developed by Cyb3rd3m0n(vocals, percussion) and Pando(lead guitar, keyboards and cybersound effects) throughout making a combination between Cyber threats topics, Social Engineering and the indisputable human greed to conquer and manipulate both physical world and the cyberspace for their own purposes.
A world consumed mainly by technology and corruption has been penetrating a large part of the world population. This group projects their emotions through mobile devices and social media sites, thus causing an existential vacuum in their lives. This album reflects that human greed has no limits and that consumerism gives us a fleeting pleasure that seeks to seize current technological resources and the valuable natural resources for the good of a few.
Unfortunately, this has been accomplished at the cost of manipulating the entire world population by advertising means, generating dependencies towards things that are not essential, and avoiding the real problems that affect humanity nowadays, such as hunger, poverty, corruption, and social inequality.