Articles

 Adding a range/block of ips

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

 Assign Additional IP Addresses in RedHat/CentOS

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

 Automation of Tasks

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

 Basic Security

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

 Block countries using the CSF Firewall

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

 Check RAM and CPU info via SSH

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

 Copy files from server to server using SCP

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

 cPanel tmp folder

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

 Disable TRACE or TRACK method in Apache

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

 File Permissions (chmod/chown)

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

 Firewalls

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

 General Introduction to Dedicated Servers

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

 How can I check my hard disk usage in Linux?

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

 How to Configure IPMI settings from a running Linux OS

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

 How to disable Firewall on RHEL / CentOS / RedHat Linux

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

 How to Find Out Hard Disk Specs / Details on Linux

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

 How to format and mount second hard drive on Linux

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

 Installing Rkhunter (Rootkit Hunter) in RHEL, CentOS and Fedora

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

 Linux: Commands for System Administration

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

 Linux: File Backup (tar/gzip)

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

 Linux: Linux File Systems

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

 Linux: The 'cp' command

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

 Linux: The 'mkdir' command

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

 Linux: The 'mv' command

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

 Linux: The 'rm' command

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

 Linux: What Type of Installation?

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

 Monitoring Hard Drive Health on Linux with smartmontools

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

 Open SSH

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

 Providing Services Under Linux

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

 Setting up snort

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

 SuperMicro ipmicfg utility on Linux

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

 SWAP Partition

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

 Test If Linux Server SCSI / SATA Hard Disk Going Bad

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

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