Category: Security

I am seeing a lot of WordPress wp-login.php brute force attack these days. In this tutorial I will explain how […]

For security reason it is recommended that you disable root SSH login to server. To SSH your server with root […]

The main user / administrator of a Linux server is root. Here is how you can create a new user […]

I was recently installing and configuring a new server. After installing CentOS I installed Apache. But server IP was not […]

You can protect your server from XMAS Attacks and drop incoming malformed XMAS packets by applying following rule in IPTable. […]

Syn-flood attacks are common these days. Syn-flood attack means that the attackers open a new connection to the server, but […]

For security reason, you should block all incoming null packets requests to your server. All TCP requests with flag NONE […]

For security reason, it is recommended that you disable directory listings / indexing on your server. Apache default configuration comes […]

This tutorial explains how you can start and stop firewall on a CentOS / RedHat Linux server. How to Stop […]

This tutorial explains how you can list all current iptables rules on a RedHat / CentOS Linux server, and how […]