GIT - Adding diffmerge as visual merge in git

GIT is one of the popular distributed code repositories in opensource community, especially with developers working on opensource projects like linux kernel and others.

Operations like Merge and Diff are the most irritating & tricky tasks via command line when working on large code changes. So let us see how can we add some graphical stuff for these operations when using on GIT so that we can do merging and other options very easily. 

TCPDUMP cheat sheet

Decoding hardware information of a PC

Checking out machine hardware information is no more a geeky thing of olden days where you need to go through the hardware specification documents or to open up a physical machine to find out the hardware details if the specification documents are missing. Now we have some really cool handy software tools to help us out.

I thought to make a page with some important tools which help us in decoding the hardware related information on a Linux Box. Feel free to drop a comment with the tool names I missed out in this post.

NOTE: All of them are ordered in alphabetical order and I am trying these tools on a Ubuntu machine running in virtual box. So some of the tool outputs might be displaying names likes VirtualBox and Oracle Corporation.

Uli Drepper - Basics you should know about buffer overflow

Part 1: Buffer Overflows

Connecting via SSH without password prompt

SSH is the common way to connect remote machines these days. Almost all kinds of applications use SSH in background for communicating with end machines.

But sometimes typing password repeatedly for establishing a SSH connection with the trusted end machine is quite daunting task.

Let us see how to automate the things in 3 simple steps where we can ssh to "user@host" without asking a password every time. Replace user with the username and host with the remote machine ip-address or hostname. For E.g. john@192.168.245.129

NOTE: Only do this with trusted machines.