This guide will walk you through the steps to create a Certificate Signing Request, (CSR for short.) SSL certificates are the industry-standard means of securing web traffic to and from your server, and the first step to getting your own SSL is to generate a CSR. This guide is written specifically for CentOS 7.
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FTP (File Transfer Protocol) is one of the most popular methods to upload files to a server. There exist a wide array of FTP servers, such as vsftpd, you can use and FTP clients exist for every platform.
Essentially no matter what OS you use you can find an easy to use FTP client, so it makes for a great solution to transfer files. On CentOS based servers before you can connect via FTP you’ll have to setup an FTP server. Here we’re gonna setup vsftpd which is a great option since it has a focus on security and speed.
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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.
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.
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Your fully managed cPanel server has several different PHP handlers from which to choose, including DSO, SuPHP, and FCGI. These handlers are responsible for reading/interpreting PHP code, then compiling and executing it.
Selecting the best PHP handler for your server is critical to overall performance, but it’s not always an easy choice to make. While FCGI currently is the best-performing PHP handler available on cPanel, it can be somewhat difficult to properly configure.
Since we’re the best Managed Hosting company around, we decided to take care of the initial configuration for you to help make your decision that much easier.
Liquid Web has spent the past few months optimizing FCGI settings to achieve the best performance gains possible while lowering resource utilization and further improving stability. Today, we’re thrilled to announce that we’ve updated our Fully Managed CentOS 6 and CentOS 7 templates to include these optimizations by default!
To measure performance, we installed a default WordPress site on a Zone C 16 GB Storm VPS, then used Apache Benchmark to hit the server with 10 concurrent connections, and a total of 1,000 requests.
With SuPHP as the PHP handler, we were able to get around 30 requests per second. Once we switched the PHP handler to FCGI with our optimizations (which include enabling and configuring OPcache), we were able to get more than 150 requests per second! In this case we saw a 500% increase in performance!
These optimizations are not reserved for new Storm® VPS and Dedicated servers, either. If you have an existing fully managed cPanel server and would like to take advantage of the performance gains FCGI and OPcache can bring to your sites, let us know! Our Heroic Support® technicians can quickly examine your server’s current settings and walk you through any changes necessary to help your server realize its full potential with FCGI and OPcache.
Continue reading “Find (View) Default Zone for Firewalld on CentOS 7”
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Node.js is a cross-platform runtime environment, configurable on Linux, OS X, and Microsoft Windows, and built on JavaScript. Applications, both server-side and networking, are also written in JavaScript. Node.js lends itself nicely to quick deploying, real-time web applications, and is generally thought of as extremely scalable due to its event-driven architecture.
The Node Version Manager allows admins to easily manage node.js versions. It’s a bash script that has the capability to manage multiple active versions of node.js, with functionality such as: installation, executing commands with specific node.js versions, setting the PATH variable to use a specific node.js versions, etc.
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The Node Version Manager allows admins to easily manage node.js versions. It’s a bash script that has the capability to manage multiple active versions of node.js, with functionality such as: installation, executing commands with specific node.js versions, setting the PATH variable to use a specific node.js versions, etc.
Continue reading “How to Install NVM (Node Version Manager) for Node.js on CentOS 7”
Memcached is a distributed, high-performance, in-memory caching system that is primarily used to speed up sites that make heavy use of databases. It can however be used to store objects of any kind. Nearly every popular CMS has a plugin or module to take advantage of memcached, and many programming languages have a memcached library, including PHP, Perl, Ruby, and Python. Memcached runs in memory and is thus quite speedy, since it does not need to write data to disk.
Continue reading “How to Install the Memcached PHP Extension on CentOS 7”