LTSP – Concept and Implementation

LTSP is used to setup Linux Thin Clients aka Diskless Clients. It also can be used for Maintenance server or Installation Server in infrastructure. It is very cost effective & highly customizable solution. This article will explain the concepts and implementaion of LTSP.

Bash Scripting – TRAP

Many of us might have faced a stiuation where we have started a script, waiting for its outcome and suddenly someone/ourself do a CTRL+C by mistake to terminate the script. Wouldn’t it be nice if our script becomes ‘immune’ to CTRL+C signal. Here comes ‘trap’ command for help. ‘trap’ command basically traps the signal which…

Preventing Brute Force Attacks with Fail2Ban

If you have FTP or SSH server exposed to internet with static IP, then you may face issue of Brute Force Attack on your FTP or SSH server. In this article, we will learn how to secure our FTP or SSH server from Brute Force Attack

Making a Linux box as Simple router and Firewall

 Scenario:1 One Linux Box as a firewall having 2 Lan cards or 1 lan card and one internet modem connection.2. eth0 –> Connected to Broadband. IP is 192.168.1.2  in case of dialup it can be “ppp0”3. eth1 –> Connected to Local LAN IP is 192.168.2.1Note: In case of broadband your default gateway should be IP…