Network Terminology You Should Know

As you delve into the world of dedicated servers, you will encounter a mountain of terminology. You might already be familiar with some, but others may leave you scratching your head. The following network terms are frequently used in all types of networking and also in web hosting in particular.
TCP – Transmission Control Protocol or […]

How to Change Your SSH Port with SELinux (RHEL 6)

In a previous post, we explained how to change the SSH port on your Linux server from the standard port 22.  In most cases, this works just fine, but if you are using Red Hat Enterprise Linux 6, there is a good chance you received an error such as […]

Server Network Monitoring with IPTraf

Many system administrators do not take sufficient steps to protect their server’s network.  In some cases, they install the firewalls and other automated defenses, but they do not take steps to monitor the network the way that they monitor system services, users, and other dedicated server elements.
To properly ensure your network stays as safe as […]

Monitor Bandwidth with BandwidthD

Bandwidth is not free, and if you were to believe everything ISPs said, you might believe a war over bandwidth will be as violent as one fought over oil. With ISPs throttling bandwidth, and hosting companies fighting for every last cent of bandwidth, it is no surprise that the word bandwidth can strike fear […]

How to Close and Open Ports with iptables

Linux dedicated servers typically rely a software firewall system called iptables. With it you can control which ports allow inbound and/or outbound access. It is very important to have iptables configured properly, both for your server’s functionality and for its security.
There are many tools, both command-line based and web-based that allow you to […]