Although Linux is a very secure operating system, security of your servers should not be taken for granted. We maintain a variety of open source solutions and configurations to protect your servers on multiple levels.
At the most basic level we run anti-virus and anti-rootkit hunter, to warn us if any malicious software makes its way on to your server, either accidentally via another Internet user, or through deliberate attack. Regular scans with ClamAV and rkhunter ensure malicious software is discovered fast.
You also need to mitigate against the possibility malicious software manages to install itself on your computer and operate undetected for a short period, which is why we also offer advanced software firewall management. It is a common mistake to only defend against threats without and fail to defend against threats within. Making this mistake means if something bypasses your first line of defence, there is nothing left.
That's why we configure and maintain the firewall rules on your Linux software firewalls to ensure a strong posture. Installed malicious software usually attempts to broadcast its presence in some way or operate on unknown high ports to avoid detection. By blocking all traffic except that which is explicitly permitted, both inbound and outbound, we render most malicious software useless, trapped on your machine until we are able to discover it and destroy it, unable to spread or communicate with its would-be operators.
On top of all this we operate the open source intrusion detection software, OSSEC. OSSEC continously scans Linux log data for unexpected activity and categorises that activity according to threat level, determined by a continually improving threat library. Depending on the threat level, OSSEC is capable of executing aggressive rules against certain traffic types and/or sources, to stop malicious attackers in their tracks.
SecureStack comes as standard on our servers, however you can also run SecureStack on your own servers from £100 per month.*
* pricing is per server, supported operating systems are Debian, Ubuntu, RHEL and CentOS.