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”

What Is KernelCare?

Tux the Penguin with Hotpatching (KernelCare)The concept of ‘Kernel hotpatching’, sometimes called live patching, was introduced to the Linux community around 2008. Soon after groups began developing differing implementations of the concept. KernelCare, one of the more popular implementations, was originally released in March 2014 by Cloud Linux, Inc. Continue reading “What Is KernelCare?”

Understanding the Default WordPress .htaccess

When maintaining a WordPress site you may find yourself attempting things that normally would work and find that they have unexpected results. This is usually due to how WordPress’ default .htaccess rules manipulate the configurations and provide ‘pretty permalinks’. Continue reading “Understanding the Default WordPress .htaccess”

EasyApache 4 & CLI based PHP utilities

With the release of EasyApache 4 in WHM 58 there are various changes to how PHP is managed. The most obvious being that EasyApache 4 brings support for installing multiple PHP versions alongside each other. However with multiple versions of PHP being installed on the server it’s easy to lose track of your command-line based PHP utilities and their PHP requirements. Continue reading “EasyApache 4 & CLI based PHP utilities”

7 Extremely Useful Linux Commands for Beginners

#1: ls : What’s in this directory?

The command ls stands for list directory contents. And, cleverly, it will do just that: list a directory’s contents! Using it with -F will give a list of the directories contents, and denote items that are other directories with a trailing /.

ls -F

On my server returns:

allthethings.txt important.doc Indominus/ Misc/ probs.xls Red Wings/ Spreadsheets/ Work/

In the above case, allthethings.txt, garbage.file, important.doc, and probs.xls are files, and Indominus, Misc, Red Wings, Spreadsheets, and Work, each with the trailing /, are directories!

There are many other options, or switches, such as -F that can be used with ls for improved results. For example:

ls -lFa

Returns:

dr-xr-x---. 10 root root 4096 Apr 17 12:01 .
drwxr-xr-x. 19 root root 4096 Apr 14 12:45 ..
-rw-r--r-- 1 root root 0 Apr 17 12:00 allthethings.txt
-rw------- 1 root root 483 Apr 14 12:45 .bash_history
-rw-r--r--. 1 root root 18 Dec 28 2013 .bash_logout
-rw-r--r--. 1 root root 176 Dec 28 2013 .bash_profile
-rw-r--r--. 1 root root 361 Jan 1 01:24 .bashrc
drwxr-xr-x 3 root root 4096 Jan 1 01:25 .cache/
drwxr-xr-x 3 root root 4096 Jan 1 01:25 .config/
-rw-r--r--. 1 root root 100 Dec 28 2013 .cshrc
-rw-r--r-- 1 root root 0 Apr 17 12:01 garbage.file
-rw-r--r-- 1 root root 0 Apr 17 11:58 important.doc
drwxr-xr-x 2 root root 4096 Apr 17 11:59 Indominus/
drwxr-xr-x 2 root root 4096 Apr 17 11:57 Misc/
-rw------- 1 root root 42 Apr 14 12:44 .my.cnf
-rw-r--r-- 1 root root 0 Apr 17 12:00 probs.xls
drwxr-xr-x 2 root root 4096 Apr 17 11:57 Red Wings/
-rw------- 1 root root 1024 Jan 1 01:22 .rnd
drwxr-xr-x 2 root root 4096 Apr 17 11:56 Spreadsheets/
drw------- 2 root root 4096 Apr 14 12:42 .ssh/
-rw-r--r--. 1 root root 129 Dec 28 2013 .tcshrc
drwxr-xr-x 2 root root 4096 Apr 17 11:57 Work/

In the above case two switches are added: -l and -a. The -l uses the long listing format, and the -a switch lists all of the files, including hidden files.

Each column contains an important bit of information:

Column | Information | Example

  • 1 | Permissions | drwxr-xr-x
  • 2 | # of Hard Links | 2
  • 3 | User That Owns File or Directory | root
  • 4 | Group for File or Directory | root
  • 5 | File Size | 4096
  • 6 | Timestamp | Apr 17 11:59
  • 7 | Filename | Indominus/

Continue reading “7 Extremely Useful Linux Commands for Beginners”

Storm Private Cloud Parent

In addition to our dedicated servers, we also offer products on our cloud platform Storm on Demand. More information about the differences can be found here on our knowledge base in our Comparison article.

Working in a virtualized environment such as Storm on Demand does indeed give you a significant amount of control over your server, but you can now take that one step further: we have introduced an exciting new feature that allows you to create your very own Storm Cloud Parent.

You – and only you – will be allowed to add Storm instances to this private parent, and your parent will largely be separate from the public cloud.  This allows you to have even more control over the environment!  Your private Storm parent will be connected to the public network for certain features such as the Storm backup system and Server Images management.  The physical parent machine will control networking for your servers, but will be connected to the public network to utilize the Storm infrastructure.

Please note that this means that your backups and server images will be stored in an environment that is shared with (but not accessible to) other users.  Additionally, networking on the physical server is not shared, but the networking infrastructure between your private Storm Cloud parent and other Storm Cloud parents is considered a shared resource.

To get started, log into your Manage interface and press the “Create” button, like you normally would when creating a new server. You will see “Storm Private Cloud Parent” listed as one of the options. Select that box and then press yellow Configure New Device button to customize your parent. Continue reading “Storm Private Cloud Parent”

Ensure Your Electronic Payments are PCI DSS Compliant

If you process credit cards on a website, your site needs to be in compliance with the Payment Card Industry Data Security Standard. (This is abbreviated as PCI DSS, and even more often referred to simply as PCI.) PCI compliance certifies that your organization takes all necessary steps to protect sensitive customer data and provides a set of standards for your infrastructure and server setup. While Liquid Web does not offer full PCI compliance certification, we do offer a separate service that scans your server to see that PCI DSS requirements are met, a great tool during the compliance process.

Continue reading “Ensure Your Electronic Payments are PCI DSS Compliant”