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Tag Archives: centos

July, 2010

  • 13 July

    How to Increase MySQL Memory Usage Above 4GB

    Question: My database server is timing out because MySQL seems to hang once it has used up 4GB of RAM, even though the server is equipped with 6GB. How can I make MySQL take advantage of the full 6GB available? Answer: If your current server setup involves a 32-bit architecture …

May, 2010

  • 5 May

    Linux: Commercial vs. Community Distros

    Your server is your baby. You have worked hard to nurture it and prepare it for the world. Now, the question you need to ask yourself is: Do I want my baby to wear brand name clothes or generic ones? Commercial Linux distributions offer the “brand name”, but is that …

March, 2010

  • 17 March

    How to Install Apache Tomcat in CentOS/Redhat/Fedora

    Apache Tomcat is free and open source software that implements a Java-based HTTP web server using Java Servlets and JavaServer Pages (JSP). It is an option to consider when you are implementing a content management system or creating web applications. There are four main steps to take to get Tomcat …

  • 3 March

    How to upgrade CentOS

    Question: How do I upgrade my CentOS installation to a higher version? Answer: Using YUM you can upgrade CentOS with only a few steps. 1. Backup your important data. If most or all of is in a database, make sure to backup all databases. 2. List all of the updates: …

February, 2010

  • 25 February

    How to install OpenVZ with yum

    OpenVZ is a free and open source virtualization solution for Linux. Here is an easy guide to installing OpenVZ on Redhat Enterprise Linux, CentOS, or Fedora. Note: It is recommended that you use an ext2 or ext3 file system if you want per-container disk quota. 1. Add the OpenVZ YUM …

  • 23 February

    How to install Nginx via YUM in CentOS

    Nginx (pronounced “Engine X”) is a lightweight web server that offers speed and flexibility without all of the extra features that larger web servers like Apache offer. Although it is a free and open source application, CentOS does not offer the latest version in its default YUM repository. To install …

  • 16 February

    How to delete duplicate files in Linux

    Question: Two of my directories on my server have some the same files. How can I easily delete any duplicates while preserving the unique files? Answer: There exists a Linux tool for just about everything, and this is no exception. You need a tool called fdupes, which searches the path …

  • 11 February

    Share file folders on a Linux server

    Many web-based organizations depend on the ability to communicate and share files easily. Even if you already have a website, however, you might not have an easy way to share files and folders, aside from giving each user FTP or SSH access. There are proprietary solutions, such as Dropbox or …

January, 2010

  • 28 January

    Monitoring a Linux server with Logwatch

    On a Linux server, there are numerous separate logs that contain vital information about your web server, mail server, database servers, and other important systems and services. While you could periodically check each log, this is time consuming and will not always identify the problems as they occur. Logwatch is …

  • 27 January

    Managing bootup services on Linux servers

    Question: Which Linux services should be enabled at boot on a server? Answer: Most Linux distributions come with more than what you need. They are designed to not only work on servers but also desktop computers, laptops, netbooks, and in some cases, even smaller mobile devices like phones. Because of …