Accessing man pages on Ubuntu 16.04 LTS

Having access to man pages on your server is a pretty essential asset to be familiar with. If you’re not familiar with man pages they are documentation provided with software packages on Unix systems. They provide a sort of manual for applications, services and system resources. You can learn more about man pages in our introductory article. By default on Ubuntu based servers this command is not provided, since it’s a great tool to have access to this article will help you get them setup.

Continue reading “Accessing man pages on Ubuntu 16.04 LTS”

How To Install Git on Ubuntu 16.04 LTS

Git is one of the most popular tools used for distributed version control system(VCS). Git is commonly used for source code management (SCM) and has become more used than old VCS systems like SVN.

Installing Git on Ubuntu 16.04 LTS

Pre-Flight Check
  • You should be running a server with any Ubuntu 16.04 LTS release.
  • You will need to log in to SSH via the root user.
  • In this tutorial I’ll be working with a Core Managed Ubuntu 16.04.4 LTS server

First, as always, we should start out by running general OS and package updates. On Ubuntu we’ll do this by running:apt-get update

After you have run the general updates on the server you can get started with installing Git.

  1. Install Git
    apt-get install git-coreYou may be asked to confirm the download and installation; simply enter y to confirm. It’s that simple, git should be installed and ready to use!
  2. Confirm Git the installation
    With the main installation done, first check to ensure the executable file is setup and accessible. The best way to do this is simply to run git with the version command.
    git --version

    git version 2.7.4
  3. Configure Git’s settings (for the root user)
    It’s a good idea to setup your user for git now, to prevent any commit errors later. We’ll setup the user testuser with the e-mail address testuser@example.com.

    git config --global user.name "testuser"
    git config --global user.email "testuser@example.com"
    Note:
    It’s important to know that git configs work on a user by user basis. For example if you have a ‘david’ Linux user and they will be working with git then David should run the same commands from his user account. By doing this the commits made by the ‘david’ Linux user will be done under his details in git.
  4. Verify the Config changes
    Now we’ll verify the configuration changes by viewing the .gitconfig file. You can do this a few ways, we’ll show you both methods here.

    1. View the config file using cat with the following command:
      cat ~/.gitconfig
    2. Or, you can also view the same details using the git config command:
      git config --list

And that’s it! You have now installed Git on your Ubuntu 16.04 LTS server and have it configured on your root user. You can get rolling with your code changes from here, or you can repeat steps 3 and 4 for the other system user accounts.

Installing WordPress using WP-CLI

WordPress has a great GUI based installation process however some use cases call for CLI! Or maybe you just feel more at home in a terminal, either way this article will show you how to get your WordPress site setup with just a terminal, WP-CLI, and maybe a sprinkle of SSH.

So first things first, if you’re doing this locally fire up your terminal and if you’re doing this on a server connect to it via SSH. Now that you’re in CLI you want to get into the folder you’re installing WordPress to. From there you can get things rolling in WordPress! Continue reading “Installing WordPress using WP-CLI”

How to enable EPEL repository?

The EPEL repository is an additional package repository that provides easy access to install packages for commonly used software. This repo was created because Fedora contributors wanted to use Fedora packages they maintain on RHEL and other compatible distributions.

To put it simply the goal of this repo was to provide greater ease of access to software on Enterprise Linux compatible distributions.

What’s an ‘EPEL repository’?

The EPEL repository is managed by the EPEL group, which is a Special Interest Group within the Fedora Project. The ‘EPEL’ part is an abbreviation that stands for Extra Packages for Enterprise Linux. The EPEL group creates, maintains and manages a high quality set of additional packages. These packages may be software not included in the core repository, or sometimes updates which haven’t been provided yet.
Continue reading “How to enable EPEL repository?”

How to: Using killall to Stop Processes with Command Line

Sometimes you may find your server in a state of high load caused by out control of processes. First you’ll want to use a command like htop, top, or ps, to get an idea on the server’s current state. If you aren’t familiar with those utilities we’d suggest checking our our article on htop.

After you have an initial assessment of the server’s current load you will have a better idea on how to proceed. More often than not the load is likely being caused by regular server traffic and usage.

Generally that will mean the load is being caused by a high number of Apache, PHP, or MySQL processes. After all most servers are hosting websites and these are the most commonly required programs to run a website. With that in mind during times of high load it’s often nice to quickly stop all processes of a certain type.
Continue reading “How to: Using killall to Stop Processes with Command Line”

Featured Freeware: htop

Featured Freeware highlights some of the Liquid Web staff’s favorite free software. This can range from useful command line tools, open-source packges useful in web-development, or even multi-platform applications. This week we are covering a treasured favorite, htop.

Note: This post assumes you have a working knowledge of top. You can read our article on using top, if you are not familiar with the tool.

htop, or Hisham’s top, is an interactive process viewer for Unix systems. With htop you are provided the same functionality as top, however it provides some needed improvements. Most are in areas where top shows some of it’s age; for example, in htop you can scroll the list of processes vertically and horizontally to see all the process info.

Another benefit is that htop seems to start significantly faster, generally when using top there is a bit of a delay while the program loads up some initial data. So now that you know the basics of how htop differs from top, lets get to using it. First you’ll need to ensure it’s installed on the server and if not we’ll try to get it installed.
Continue reading “Featured Freeware: htop”

How to Install WP-CLI

WP-CLI is a command line tool for interacting with and managing WordPress sites. WP-CLI is very similar in functionality to what drush provides Drupal. If you are already familiar with using cli tools then this will be quick to pick up on. If not, then it may be a good time to start learning.

In this tutorial we’ll learn how to install wp-cli on a server and learn some basics. With WP-CLI you can speed up common maintenance, automate tasks, or even take backups. Continue reading “How to Install WP-CLI”

How to Disable MySQL Strict Mode

MySQL’s, and MariaDB’s, strict mode controls how invalid or missing values in data changing queries are handled; this includes INSERT, UPDATE, and CREATE TABLE statements. With MySQL strict mode enabled, which is the default state, invalid or missing data may cause warnings or errors when attempting to process the query.

When strict mode is disabled the same query would have its invalid, or missing, values adjusted and would produce a simple warning. This may seem like the preferred result, however with strict mode disabled certain actions may cause unexpected results; for instance, when the value being inserted exceeds the maximum character limit it will be truncated to fit the limit. Continue reading “How to Disable MySQL Strict Mode”

How to Check the Version of cPanel / WHM

Pre-Flight Check

  • These instructions are intended specifically for checking your version of cPanel or WHM via the command line or the WHM dashboard.
  • I’ll be working from a Liquid Web Managed CentOS 7 server, and I’ll be logged in as root.

Method #1: Checking the Version of cPanel / WHM by the ‘cpanel’ Command

Using the cPanel command:

/usr/local/cpanel/cpanel -V

11.50.0 (build 27)

Continue reading “How to Check the Version of cPanel / WHM”

How to Remove (Delete) a User on Ubuntu 15.04

Users via Command Line 101: Basic User Interaction
I. How to Add a User and Grant Root Privileges on Ubuntu 15.04
II. How to Remove (Delete) a User on Ubuntu 15.04

Pre-Flight Check

  • These instructions are intended specifically for removing a user on Ubuntu 15.04.
  • I’ll be working from a Liquid Web Self Managed Ubuntu 15.04 server, and I’ll be logged in as root.

Continue reading “How to Remove (Delete) a User on Ubuntu 15.04”