Linux: 20 Iptables Examples For New SysAdmins

Linux comes with a host based firewall called Netfilter. According to the official project site: netfilter is a set of…

Help for osCommerce administrators

osCommerce systems are currently being targeted by a mass hacking attack – online shop administrators need to act immediately. This…

Sniffing Passwords Over a Wifi Connection [Linux]

Now here’s where some fun stuff starts! I hope many of you have followed my installing Backtrack 5 guide and…

Five Common Weaknesses in a Linux Server that are Worth Covering

There seems to be a belief these days that complying with the PCI standard is bound to be expensive and…

5 Basic SSH Security Tips

SSH (Secure Shell) is designed with security in mind. In the old days, people often used Telnet to connect to…

ssh security tip | Change sshd listening port

New tutorial added to HowtoMatrix database. ssh security tip | Change sshd listening port Introduction There a lot of ways…

ssh -t (open a pseudo tty) run commands on a remote server

New tutorial added to HowtoMatrix database. ssh -t (open a pseudo tty) run commands on a remote server Create a pseudo TTY with ssh -t The -t option in the ssh -t command force pseudo-tty allocation. This is very handy when you need to run remote screen based applications on the remote server, establishing something [...]

Preventing Brute Force Attacks With BlockHosts On Debian Lenny

New tutorial added to HowtoMatrix database. Preventing Brute Force Attacks With BlockHosts On Debian Lenny Preventing Brute Force Attacks With BlockHosts On Debian Lenny In this article I will show how to install and configure BlockHosts on a Debian Lenny system. BlockHosts is a Python tool that observes login attempts to various services, e.g. SSH, [...]

43 Excellent WordPress Security Tips & Plugins

After putting in all of the time, and perhaps money, into your WordPress website or blog, its now time to secure and protect it from outside enemies and general bad guys: hackers, spammers and all round tossers. Without a doubt, for a self-hosted blog, WordPress is the best blog CMS that you can get. Though […]