- Using sed
sed is a quick command line utility to change text within a file, or input stream. Typically, it is used within a pipe situation
- Bash find command
I’ve been using the find command simply since I can remember, but I’ve never really got to see the true power of this command.
- Setting up a firewall on Linux Ubuntu 14.04
This post walks throug the steps needed to set up a firewall on Ubuntu 14.04. Note that 14.04 is now end of life.
- How to enable disk quotas for users
Linux allows setting quotas on a filesystem. This will prevent users from using more diskspace than they are allowed.
- Encrypt a partition on Linux
An encrypted partition can add a layer of security to your system. When initialized, it will ask for the passphrase which, if unavailable, will not allow proper mounting.
- How and why you should be using 2 factor authentication
Two factor authentication provides another layer of security to any sign in for services you use. By enabling 2 factor authentication, you are using another layer of security when signing in.
- Linux group explained
Users on a linux system belong to at least one group. Groups allow a systems administrator to create parts of the filesystem where a group of users can share files.
- Using Git as a content manager system
Not familiar with git? Start with an online book or Version Control with Git.
- How to set-up RAID on Linux
RAID disks offer particular advantages over ordinary single disk set up. Data redundancy is improved (consider it to be a continuous backup) and also significant performance can be seen with the correct configuration.
- How to set-up LVM on Linux
What are the advantages of Logical Volume Management (LVM)?