linux – Vassox

Disabling IPv6 on Ubuntu 18.04, 19.04

September 15, 2019

IPv6 adds another layer of complexity when configuring a machine for a simple task. Namely, infrastructure services such as DNS, DHCP and even xRDP…

Autologin to Ubuntu 16.04+

July 25, 2019

Security aside….under some circumstances it can be useful to have a system boot directly to a command prompt. This method works on Ubuntu 16.04…

Disabling SELinux on Centos 7 / RHEL the Easy Way

June 21, 2019

In some scenarios, where compatibility over security takes precedent. What exactly is SELinux? Short for Security-enhanced Linux, SELinux is a Linux variation that can…

Making a File Undeletable – Even By Root in Linux

June 13, 2019

In some instances you may wish to have a file with permissions that restrict it from being removed by any user, even root. This…

Configuring Postfix to Work with Gmail on Centos 7 / RHEL

May 24, 2019

This is both a simple and easy method to configure a local mail server to send messages / notifications from a gmail account. In…

Sudo Linux Command

March 25, 2019

sudo (Super User DO) is generally used as a prefix of some command that only superuser are allowed to run. If you prefix “sudo” with any command, it…

Using Netstat to Find Out What Ports are Open

March 19, 2019

The netstat command shows the services listening to ports on a Linux server and the details of any connections currently made to them. The…

Ethernet Hardware Error Intel e1000e Centos 7 “jiffies”

March 19, 2019

So i came upon this after happily switching to Centos 7 from Ubuntu (cosmic cuttlefish) thinking many of the issues i had been facing…

Installing / Removing GUI on Centos 7, RedHat 7 (RHEL) Minimal Install and Enable Remote Desktop

February 25, 2019

Typically I perform minimal installations when I install any distro of Linux. Occasionally, albeit very rarely – it can be useful to have access…

Linux Directory Structure and Functions

February 19, 2019

1. / (Root) : Primary hierarchy root and root directory of the entire file system hierarchy. Every single file and directory starts from the root…