Tag: Fedora 21

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.

Squid is a caching and forwarding web proxy. It is most often used in conjunction with a traditional LAMP stack (Linux, Apache, MySQL, PHP), and can be used to filter traffic on HTTP, FTP, and HTTPS, and increase the speed (thus lower the response time) for a web server via caching.

Updating glibc on Fedora Linux is a very simple process. Most commonly you will use the following command in the case of a security vulnerability, or perhaps just to verify that you’re running the most up-to-date library:

Pre-Flight Check

• These instructions are intended specifically for checking the installed version of glibc.
• I’ll be working from a Liquid Web Self Managed Fedora 20 and Fedora 21 server, and I’ll be logged in as root.

• These instructions are intended specifically for installing the MongoDB PHP Driver (Extension) on Fedora 21.
• I’ll be working from a Liquid Web Self Managed Fedora 21 server with Apache 2 (httpd) and PHP already installed, configured, and running, and I’ll be logged in as a non-root user, but with sudo access. For information on giving a user sudo access visit our page on How to Add a User and Grant Root Privileges on Fedora 21.

The Apache web server is one of the most popular and powerful web servers in the world due to its ease of administration and flexibility. This flexibility comes Apache’s modular design, and allows for such features as: URL rewriting for SSL encryption natively, and Outlook Anywhere passthrough support in reverse proxy setups. Modularity allows Administrators to modify Apache to meet their needs; adding modules that are needed and removing ones that are not.

One of the best tools for quickly finding files by filename is the locate command. The locate command reads one or more databases prepared by updatedb and writes file names matching at least one of the patterns to standard output, one per line.

• These instructions are intended specifically for updating Bash on Fedora 20 and Fedora 21.
• I’ll be working from both a Liquid Web Self Managed Fedora 20 server and a Liquid Web Self Managed Fedora 21 server, and I’ll be logged in as root.

Varnish is a proxy and cache, or HTTP accelerator, designed to improve performance for busy, dynamic websites. By redirecting traffic to static pages whenever possible, varnish reduces the number of dynamic page calls, thus reducing load.

FTP (File Transfer Protocol) is probably the most popular method of uploading files to a server; a wide array of FTP servers, such as ProFTPD, and clients exist for every platform.