Linux management and configuration

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  • Process monitoring and management on Red Hat using graphical tools

    Use the learn gnome-system-monitor command on Red Hat Enterprise Linux to monitor and manage processes on your server in a graphical environment. 

  • How to use SUSE Manager for multiplatform Linux server administration

    Linux administrators using both SUSE Linux Enterprise Server and Red Hat Enterprise Linux can take advantage of the features in SUSE Manager, a multiplatform server management tool to automate configuration and management tasks on Linux virtual machi... 

  • How to improve KVM performance by adjusting KSM

    KVM Virtualization on Red Hat Enterprise Linux 6 is optimized for hosting environments with many virtual machines by using kernel samepage merging. But, disabling KSM can provide better performance in a smaller virtualized Linux system. 

  • How to configure Postfix MTA on Red Hat Enterprise Linux 6

    Red Hat Enterprise Linux 6 uses Postfix for mail transmission. Learn how to configure the open source mail server in your Linux system. 

  • Signing Linux RPM files using a Gnu Privacy Guard key

    Signing Linux RPM packages assures users of the package that the RPM has not been tampered with. Learn how to create a Gnu Privacy Guard key and sign your RPM packages. 

  • Creating RPM packages in Linux

    RPM software management on Linux systems truly has an advantage when you create your own RPM packages. Learn how to use the enhanced vim option to automatically generate a template file after creating a new RPM file with the .spec extension. 

  • Optimizing Linux for SSD usage

    Default Linux settings won't allow you to take advantage of SSD performance gains. Learn four ways to optimize SSD performance on your Linux system in this tip. 

  • Using Vagrant with Puppet to create VirtualBox hosts

    Vagrant integrates with Puppet and Chef to automate configuration management to build VirtualBox hosts. Linux systems admins can use this technology for quickly creating development hosts and production hosts. 

  • Exploring the features of the XFS file system on Linux

    The XFS file system has been designed to deal with high file volumes and large files more efficiently. Find out how the file system manages these files, and when it might be appropriate to use this file system on your Linux servers instead of Ext3 or... 

  • Deciding when to use Linux file system barriers

    Linux file system barriers in Ext3 and Ext4 protect data written to the journal. Learn how these barriers work and in which use cases they are a benefit, and in which cases you should disable them on your Linux servers.