Knowledgebase

As an example to add a /24 253 ips to a linux server follow these setups. We'll use...

If you are using CPanel, you should add the IP addresses through WHM.  Do not follow these...

How to automate tasks on a Linux systemYou don't have to do that yourself!One of the main tasks...

Basic SecurityFortunately, Linux has a lot of built in security that it inherits from its Unix...

If you're on a VPS or Dedicated Server, the block using the Firewall is a better alternative. It...

Check CPU cat /proc/cpuinfo   Check Memory / RAM cat /proc/meminfo

Often times with a VPS or Dedicated Server you will need the ability to copy a single file or...

Disabling the TRACE or TRACK methods from inside Apache are highly recommended and are now...

Linux has inherited from UNIX the concept of ownerships and permissions for files. This is...

FirewallsA machine connected to the Internet that isn't behind a firewall is a disaster waiting...

A dedicated server is a single computer on a web hosting network that is leased or rented, and...

Once you are connected to the server via SSH, run the following command:# df -hThis will output...

Getting the OS prepared: 1) Install IPMItool. On CentOS Linux, install the OpenIPMI-tools,...

Linux comes with various commands to find out information about your hard drive. I recommend...

How do I turn off or disable firewall permanently under RHEL / Fedora Linux / Red Hat Enterprise...

If you have two hard drives you can mount second hard drive to be used for (cPanel/WHM) backups...

What Is Rkhunter? Rkhunter (Rootkit Hunter) is an open source Unix/Linux based scanner tool for...

The following commands are frequently used by systems administrators to keep an eye on what's...

Let's face it, computers aren't perfect. Linux is an "almost perfect" operating system, but...

This is a beginner's course and one of the concepts that newcomers to Linux find different is...

To show you how to copy files with Linux we talked about 'cp' in the lesson on aliases. 'cp' is...

'mkdir' is the command for making directories. 'mkdir' may be familiar to MS-DOS users out...

'mv' is a command that we're going to use to move files around or to rename them. 'mv' sort of...

'rm' is for removing or deleting files. That means, sending them into non-existence, oblivion,...

What type of installation should I do? (Dual Boot / Live CD / Fresh Install / Virtual...

S.M.A.R.T. is a system in modern hard drives designed to report conditions that may indicate...

Working with OpenSSHBack when the Internet was a big, happy family with only a hundred or so...

Running A Name ServerThe most popular software for translating hard to remember IP addresses...

Plunk that CD/DVD in your computers drive. Okay. Now is the moment of truth. We've got the...

Intrusion Detection with SnortSnort is a popular open source intrusion detection system. You can...

SuperMicro have a nice little utility called ipmicfg, which can be used to interact with the IPMI...

One of our regular sends us a question: How can I test if my hard disk is going bad? I see few...

By default, cPanel sets up a paltry <512MB /tmp disk. This isn't nearly large enough for large...