You can configure your CentOS system to run in different modes. For example you can run your system in graphical mode, if you want to use it as desktop workstation. Or you can run your system in command line mode, if you are only interested in using your system’s bash terminal. You can control which mode to run in using systemd targets.
Here we’re going to talk about what are interactive and login shells.
In linux, the default permissions for any newly created folder is 777 (rwxrwxrwx), and for any newly created file it is 666 (rw-rw-rw-).However when you actually come to create a file or folder, you’ll find that in practice that is not really the case: $ touch testfile.txt $ mkdir testfolder […]
In windows you’ll have come across shortcuts, e.g. desktop shortcuts. In windows, shortcuts gives you access to the same thing but from a different location. In Linux you can do the same thing, but with a feature called “links”.
There are two main clocks in your machine: hardware clock – This clock is operated on your machine’s motherboard system-clock (aka system-time) – This is your operating system’s clock So when you start your machine, the first clock that your machine uses for timekeeping is the hardware clock, while the […]
If you have directories on your machine that you want to share out to other machines then you can do this by setting up your machine as an NFS server. However with NFS you can only share out folders to machine that are in the same private network. If you […]
Network Files System (NFS) is a protocol that let’s one Linux box (NFS server) to share a folder with another Linux box (NFS Client). On the NFS client this shared folder looks like just an ordinary folder. NFS only works in an internal network so you can share folders over […]
This course covers everything you need to know in order to pass the Red Hat Certified Systems Administrator (RHCSA) exam for RHEL 7. Becoming RHCSA certified proves that you have developed a strong proficiency in RHEL. RHEL is short for “RedHat Enterprise Linux” and as the name suggests, it’s a […]
Take the RHCSA Quiz This article is part of our RHCSA Study guide (click on the yellow tab on the far left). By the end of this article you should be able to answer the following questions: