Mar 262012
 

Original article by Ankur Aggarwal published on http://flossstuff.wordpress.com/

Wikipedia : One of the most important web portal in  geek’s life. Whenever I need to search anything I use two things. First open up the Google and then search for the related  wikipedia page. Exploring wikipedia page using shell is possible. Interested fact is that we can do it without even opening the cli browser. We can make wikipedia text query over dns for an ip address. I learned this trick from Ajay Sharma ([email protected]). Thanks to him for teaching me this wonderful trick. Let’s explore how to do it.
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Mar 222012
 

This is an article of mine, first published on Wazi
You can read the first part here

In this article we’ll see how apply BPF filters to wireshark to show the details of an HTTP session, an e-mail session and how to monitor who is visiting a certain site from our local network.
Finally I will make a summary of the most useful filters to use with Wireshark.

Here’s another classic example – an HTTP session. As before, start Wireshark and start capturing the traffic from the interface that goes out. Today, most HTTP traffic is compressed to speed up the exchange of information, so by default Wireshark decompresses the body part of HTTP packets. You can click on Edit -> Preferences -> Protocols -> HTTP and verify that “Uncompress entity bodies” is checked.
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Mar 192012
 

This is an article of mine, first published on Wazi

Some find the fine art of capturing and interpreting the packets that run through your network to be as arcane as reading The Matrix, but you don’t need to be the new Neo to be able to parse the network flux. A powerful ally can help you in this mission: Wireshark, a powerful software tool to analyze your network traffic.

Wireshark is several tools in one application. You can use it to analyze the structure of your wireless network in search of potential configuration errors. It can identify many types of encapsulation and isolate and display all the fields that make up a network packet. It also works as a packet sniffer, similar to tcpdump.

With all of those powerful capabilities, you might think Wireshark would be hard to learn. In some respects it is, but you can easily learn how to use some of the filters that come with the software and let you zero in on specific clients and kinds of traffic. In this article I’ll show you several ways to use Wireshark to focus your searches.
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Mar 172012
 

After the last article of Dropbox I thought it was useful to show how you can use Dropbox also on a server without a GUI, this useful article by David Feinberg was published on http://ubuntuservergui.com/

This post will help you install the Linux Dropbox client on your headless Ubuntu Server and link it up to your Dropbox account. Unlike the process of mounting an S3 bucket we looked at before the Dropbox approach is a much better solution for sharing files. If you’re a daily Dropbox user you’ll quickly get hooked on the convenience of having your servers in the same file sharing loop as all your other Dropbox connected devices!
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Mar 082012
 

This article of mine has been original published on Wazi

WordPress, the popular content managing system (CMS), is easy to set up and use, and well supported by both its community and professional consultants. WordPress depends upon a complete stack that comprises an operating system, database, web server, and PHP. If you can optimize this stack, you can enhance the performance of your site. Here are some tricks and best practices for a setup that will improve your throughput without forcing you to upgrade your hardware.

In the Part 1 of this guide we have seen what to check and change in the Operating system and on the database server (mysql), today we’ll see how to setup the http server (Nginx to be exact) and PHP.

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