Server Security

How to disable excessive resource usage alert emails?

If you have CSF firewall installed in cPanel you might noticed that you're getting an email every time some process…

7 years ago

How to disable xmlrpc.php?

While monitoring my system I have notices increased number of requests to xmlrpc.php. Every single of those requests took 200MB to…

9 years ago

RESTRICT_SYSLOG is disabled error at CSF

Few days ago I noticed the following error at CSF: WARNING: RESTRICT_SYSLOG is disabled. See SECURITY WARNING in Firewall Configuration Here…

9 years ago

How to fix Openssl Heartbleed vulnerability

What's Heartbleed vulnerability (CVE-2014-0160)? A serious OpenSSL vulnerability has been found, and is named Heartbleed and it affected all servers…

10 years ago

When CSF firewal is enabled – ping reports lots of lost packets

I use just-ping.com when I need to ping my servers from various locations in the world to see if it's…

11 years ago

How to change proftp FTP password from SSH shell

Today I have got a request from a client that has a server with no control panel on it to…

12 years ago

How to install CSF firewall

In order to protect your server the best way possible, beside running iptables you should install some additional software. I…

12 years ago

How to setup and use iptables

What's iptables? Iptables is the current Linux firewall and routing service. It controls incoming and outgoing network.   How to…

12 years ago

Security by obscurity

This simple guide will help you secure your server in indirect way by hiding software versions from possible attackers. This…

12 years ago