Tag: Command Line

Having access to Ubuntu manual pages (man pages) on your server is an essential asset with which to be familiar. Most Linux-based OS distributions include the man command out of the box. In those cases, there is not much needed. On the other hand, installations that do not have man pages are just a quick command away from having them.

What is Virtualization?

In computing, virtualization is the method of creating a software-based instance of a specific tool that is typically physical. The kinds of tools one can virtualize are:

Introduction

This tutorial describes how to mount a disk image or ISO file using Supermicro’s SMCIPMITool, a command-line utility that interfaces with IPMI enabled systems. This utility does not require any third-party software to operate.

What is YAML?

YAML Ain’t Markup Language (or YAML™) is a human-friendly, easily readable data language widely used with or alongside almost all programming mediums. It is designed around a standard formatted layout useful for creating configuration files that readily integrate across multiple development environments. It is also valuable for managing concurrent data as it includes the ability to employ Unicode printable characters.

A pipe is a form of redirection in Linux used to connect the STDOUT of one command into the STDIN of a second command. It allows us to narrow the output of a string of commands until we have an easily digestible amount of data. The pipe character is the | symbol and is placed between any two commands. Pipes are one of the most used command-line features that Linux has. Every article showing Linux commands will almost inevitably include pipes. 

One of the most popular command-line utilities is the find command, mainly because of its simplicity and versatility. It's the default option to search for files across multiple UNIX based systems with a wide range of parameters and variables to narrow down our searches. It helps look for files matching a specific name, date, size, or even owner to provide a frame to append other commands to the list of files found. The basic structure of the find command is as follows. 

Knowing your server's IP address(s) can be useful information to have for various reasons. After all, other than your domain, the server's IP is the main address used to reach the server. Knowing a server's IPs may be necessary when making changes to: DNS, networking, and security. A server may have a single IP, or multiple IPs, but sometimes, you may need a quick method to double-check since it's easy to forget.

In this tutorial, we discuss the Apache .htaccess file and the many ways it can be modified and configured to suit your specific needs. We will be reviewing how to configure .htaccess redirects, rewrites, and add other customizations.

Let's say you have decided to change domain names or have one web address on your site that you want to redirect to a completely different location. Using a .htaccess redirects, you can send visitors to the new page or site automatically!

Introduction

Just as regular visitors reach our server every day, so do others with more nefarious intentions. It is simply not reasonable to run an online service without some layer of protection. To protect against some of these attacks, Ubuntu ships with ufw (Uncomplicated Firewall). This is a tool designed to make Ubuntu firewall management as easy and user-friendly as possible. Specifically, ufw provides a cleaner interface for the core firewall tools netfilter and iptables, which, while robust, can be challenging to master.

By default, Plesk typically stores backups on the server. This can, however, present a risk if the hard drive or RAID fails on the server. If this ever occurs, you can possibly lose both data and your backups. To avoid this situation, Liquid Web recommends storing additional backups in a remote storage location.