How to: Using killall to Stop Processes with Command Line

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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.
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Featured Freeware: htop

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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. Continue reading “Featured Freeware: htop”

How to Install WP-CLI

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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

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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

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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)

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How to Remove (Delete) a User on Ubuntu 15.04

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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”

How to Add a User and Grant Root Privileges on Ubuntu 15.04

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Pre-Flight Check

  • These instructions are intended specifically for adding 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 Add a User and Grant Root Privileges on Ubuntu 15.04”

How to Add a User and Grant Root Privileges on Fedora 22

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Note:
Please note that this article is considered legacy documentation because this OS has reached its end-of-life support.

Pre-Flight Check

  • These instructions are intended specifically for adding a user on Fedora 22.
  • I’ll be working from a Liquid Web Self Managed Fedora 22 server, and I’ll be logged in as root.

Continue reading “How to Add a User and Grant Root Privileges on Fedora 22”

View the Selected MySQL Database on Linux via Command Line

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Pre-Flight Check

  • These instructions are intended for viewing the selected MySQL database via the command line.
  • I’ll be working from a Liquid Web Core Managed CentOS 7 server, and I’ll be logged in as root.

Continue reading “View the Selected MySQL Database on Linux via Command Line”