Today's Question:  What does your personal desk look like?        GIVE A SHOUT

SEARCH KEYWORD -- Access

  Get Facebook, Twitter and YouTube back

Facebook, Twitter and YouTube have become part of many people's daily network life. People hang around these sites to network with known and unknown friends, to know about the latest news and to relax with fancy video clips. But what will you feel if all of a sudden you cannot access them? Want to experience this? Go behind the GFW(Great Firewall) of China. Just a joke, but it's real. Huh, you are out of China? Don't worry. Change your DNS server to those located in China. I just experienced it,...

   DNS spoofing, GFW, YouTube, 37.61.54.158     2014-12-20 21:41:34

  Create host only network on VirtualBox

Previously we showed how to install Ubuntu in VirtualBox. What if we want to communicate with the host OS from within the Guest OS on VirtualBox? There are a few ways to do this. For example, bridged network, Host only networks. Today we will show you how to enable network communication between host OS and guest OS using host only networks. A host only network will not need to access the physical network interface of the host OS. It will create a network between different virtual machines and th...

   VIRTUALBOX,NETWORK,VIRTUAL MACHINE,HOST-ONLY     2015-12-01 09:29:13

  What is encryption? Its role in the modern age

“Messages and calls are end-to-end encrypted.” If you are a WhatsApp user, you must have read this statement at the top of chats you open. Now, what does it mean? The statement signifies that all the messages or voice notes shared between users are encrypted, and no one can read or listen in on them. As mostly all of us use messaging apps and emails, information security has become a major concern. Moreover, we don’t know how many digital footprints we leave on the web can be t...

   DATA SECURITY,VPN     2021-01-21 08:04:16

  JSON in JavaScript

When sending an AJAX request to the server, the response can have two formats : XMLHttpRequest.responseXML to access data with XML format and XMLHttpRequest.responseText to access data with string format. XML is the standard data transfer format, but one weakness is it's troublesome to parse and retrieve the data. JSON(JavaScript Object Notation) is a light weight data interchange format, we call it the JavaScript object representation. The advantage of using JSON as the data format is itself is...

   JSON,JavaScript     2013-05-04 23:25:57

  Multi-master,NoSQL and MySQL

The MySQL family has been innovating rapidly. New features need names and sometimes those names are confusing. Describing something as multi-master or a NoSQL solution has confused me.Multi-master requires one of conflict prevention, conflict resolution or faith. MySQL Cluster provides both conflict prevention and resolution as described in these great posts. Regular MySQL has minimal support for conflict prevention (auto-increment-offset can prevent insert conflict...

   MySQL,NoSQL,Comparison,RANT,Master     2011-10-17 11:30:42

  Is Shared Hosting Secure?

Shared hosting is incredibly popular with users who are looking for the cheapest hosting available – the problem is that along with the low price you get poor performance and even more concerning – questionable security. When running on a shared host dozens if not hundreds of other sites are running on the same servers – this means any single security flaw in any of those applications can compromise the entire server. This  dramatically increases the odds of your ...

   Shared hosting,Virtual host,Security,Data security     2012-02-14 10:48:59

  Twitter service down incidents summary

This Thursday, Twitter encountered a global service down incident. This is the second service down incident since last month. Later Twitter updated its website and stated that users might not be able to access Twitter temporarily.Twitter admitted the service down incident and explained that this time's service down was caused by problems of their both data centers.Ok, now lets summarize the service down incidents encountered by Twitter in past few years.in May 2008, Twitter's new engineer team w...

   Twitter,Service down,History     2012-07-28 12:36:39

  errGroup in GoLang explained

Today, let's talk about the usage and applicable scenarios of errGroup, which is often used. Why is it useful? Generally, when we use goroutine, we cannot return a value. If you want to pass out the result of the goroutine execution, you usually have to use the channel. The errGroup package is suitable if you want to know when the goroutine you opened encounters an error during execution and stop working, and I need to know the error value. errGroup usage The package needs to be downloaded and i...

   GOLANG,ERRGROUP,WAITHROUP,CONCURRENCY     2023-05-27 23:58:20

  Perl Documentation in Terms of Tasks

The core Perl community—if you care to draw lines around a group of people who use Perl seriously and call that a community—is like many other core F/OSS communities. Real work happens on mailing lists and IRC. I unsubscribed from several mailing lists and deliberately spent as little time on IRC as possible this year, for various uninteresting reasons. (I haven't even made it to the Portland Perl Monger...

   Perl,Documentation,Process     2011-12-27 09:40:09

  Google open sources its Collaborative IDE

July 9, 2012 news, Google engineer Scott Blum published an article on Google+ which revealed that Google would open source the Collaborative IDE. The project was named "Collide" (collaborative IDE), which is a Web collaborative code editor. Google hopes that Collide can serve as a catalyst for improving the state of web-based IDEs.Caution Collide does not have any proper auth, SSL support, or user account management just yet. Please consider that fact when running instances that expose important...

   Google,Open source,Collide IDE     2012-07-09 10:55:20

RECENT