Hack to protect sendmail advertising its version

Here is a very useful HACK to protect your sendmail server from potential hackers. You should be knowing that anyone can get your sendmail identity (that means the server name / version) by… Continue reading →

Using NMAP for Ping Sweep and OS Detection

Ping Sweeping is the process of pinging numerous hosts. In the case of a large set of target IP addresses, one must perform a ping sweep to determine alive hosts that respond to… Continue reading →

Bash Shell script to check the existence of a file under your linux filesystem

Here is a very small but useful shell script that will check the existence of a file and report accordingly. #!/bin/bash #by alok srivastava #check the existence of a file under your filesystem… Continue reading →