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Information on CVE-2015-0235 (GHOST) Vulnerability for Red Hat and CentOS
Filed under: Technical Support

A vulnerability found in the glibc library, specifically a flaw affecting the gethostbyname() and gethostbyname2() function calls, that allows a remote attacker to potentially execute arbitrary code. CentOS 5, CentOS 6, and CentOS 7 are potentially affected, thus we want to highlight the following information.

Liquid Web package repositories have been updated. Many servers (barring those with updates disabled) have received an update that patches this vulnerability, however, a reboot will still be required in those cases.

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How To Update the glibc (GNU libc) in CentOS / Red Hat
Filed under: Technical Support

Updating glibc on Red Hat Linux or CentOS 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:

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How to Check the glibc (GNU libc) Version on CentOS 6 and CentOS 7
Filed under: Technical Support
Pre-Flight Check
  • These instructions are intended specifically for checking the installed version of glibc.
  • I’ll be working from a Liquid Web Core Managed CentOS 6 and CentOS 7 server, and I’ll be logged in as root.

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How to Install the MongoDB PHP Driver (Extension) on Fedora 21
Filed under: Technical Support
Pre-Flight Check
  • 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.

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How to Install MongoDB on Ubuntu 14.04 LTS
Filed under: Technical Support

MongoDB is a NoSQL database intended for storing large amounts of data in document-oriented storage with dynamic schemas. NoSQL refers to a database with a data model other than the tabular format used in relational databases such as MySQL, PostgreSQL, and Microsoft SQL. MongoDB features include: full index support, replication, high availability, and auto-sharding.

Pre-Flight Check
  • These instructions are intended for installing MongoDB on a single Ubuntu 14.04 LTS node.
  • I’ll be working from a Liquid Web Core Managed Ubuntu 14.04 LTS server, 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 Ubuntu 14.04.

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How to Install MySQL on Ubuntu 14.04 LTS
Filed under: Technical Support
Pre-Flight Check
  • These instructions are intended for installing MySQL on a single Ubuntu 14.04 LTS node.
  • I’ll be working from a Liquid Web Self Managed Ubuntu 14.04 LTS server, and I’ll be logged in as root.

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How to List Which Apache 2 Modules are Enabled on Fedora 21
Filed under: Technical Support

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.

Pre-Flight Check
  • These instructions are intended specifically for viewing which Apache modules are enabled on Fedora 21.
  • I’ll be working from a Liquid Web Self Managed Fedora 21 server with Apache 2 installed, and I’ll be logged in as root.

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How to Install Apache on CentOS 7
Filed under: Technical Support

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. In this tutorial we will install Apache on a server that doesn’t have a web server or database server already installed.

Pre-Flight Check
  • These instructions are intended for installing Apache on a single CentOS 7 node.
  • I’ll be working from a Liquid Web Self Managed CentOS 7 server, and I’ll be logged in as non-root user. If you need more information then visit our tutorial on How to Add a User and Grant Root Privileges on CentOS 7.

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How to Install mlocate (locate and updatedb Commands) on Fedora 21
Filed under: Technical Support

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.

Pre-Flight Check
  • These instructions are intended specifically for installing mlocate on Fedora 21.
  • I’ll be working from a Liquid Web Self Managed Fedora 21 server, and I’ll be logged in as root.

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How To Install MySQL / MariaDB on CentOS 7
Filed under: Technical Support

MariaDB is a drop-in replacement for MySQL. It is easy to install, offers many speed and performance improvements, and is easy to integrate into most MySQL deployments. Answers for compatibility questions can be found at: MariaDB versus MySQL – Compatibility. MariaDB offers more storage engines than MySQL, including Cassandra (NoSQL, in MariaDB Version 10), XtraDB (drop-in replacement for InnoDB), and OQGRAPH (in MariaDB Version 10).

Pre-Flight Check
  • These instructions are intended for installing MariaDB on a single CentOS 7 node.
  • I’ll be working from a Liquid Web Self Managed CentOS 7 server, and I’ll be logged in as root.

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