Server

We continue to index Linux server tutorials and other learning resources for Linux administrators. A few of the topics we write on include the Ubuntu server, CentOS, Nagios monitoring, Postfix mail server, and Bash Shell scripting. We also provide training classes and self-paced products in these areas.

Thank you for visiting, enjoy these Linux server tutorials.



Saving System Resources with No atime
Server - CentOS

Saving System Resources with No atimeAdministrators can save a lot of needless writes to the disk by mounting partitions with noatime.  Even if a file is read a write will occur to disk when you are using atime.

 

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Installing And Configuring MNTOS
Server - Nagios

Installing and Configuring MNTOSMNTOS (Multi Nagios Tactical Overview System) provides a way to view a distributed network of Nagios servers. In the example all the Nagios servers are Nagios Core.

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CGroups on CentOS 6
Server - CentOS

CGroups on CentOS 6A new feature implemented in CentOS 6 are control groups which are provided by the kernel.  Control groups or cgroups, provide a way to control resources used on the system like CPU, memory, bandwidth and other resources.  The use of cgroups will allow an administrator to provide precise control over the allocation, prioritizing, monitoring and managing of resources on the server.

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Upgrading Nagios XI to Latest Version
Server - Nagios

Upgrading Nagios XIBefore you update your Nagios XI server be sure to create a good backup that could be used to recover if there are problems.  This article provides you a script that you can use to backup Nagios XI before an upgrade and shows how to perform the upgrade of Nagios.

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Automatic Logouts with Screen
Server - CentOS

CentOS Automatic Logouts with ScreenThe screen application can be used to make sure users do not leave accounts logged in.  You can set an automatic log out when an idle time has been reached.

 

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Minimal Desktop Install on CentOS 6
Server - CentOS

Minimal Desktop Install on CentOS 6This example of a minimal desktop shows how to manually create partitions using ext3 and ext4 for a server that has a minimal desktop for a graphical interface.

 

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CentOS 6 Basic Install
Server - CentOS

CentOS 6 Basic Install

There are a lot of new options to explore in CentOS 6 during install, be sure that you have a basic understand of what the options are before you begin the installation.

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Haraka Mail Server: Spamassassin Plugin
Server - CentOS


The Haraka mail server is able to used common plugins like Spamassassin to enhance the features that it provides.  Using Spamassassin with Haraka is easy to do and reduces the normal resources used by a mail server.

 

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Using a Simple Firewall in CentOS 6
Server - CentOS

CentOS 6 FirewallThe firewall configuration on CentOS 6 has changed.  This article shows how to add your own firewall rules to the configuration.  CentOS 6 has more options with the firewall than previous versions.

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Haraka Configuration: Receiving Mail in Queue
Server - CentOS

Configuring Haraka To Receive Mail Into a Queue

Setting up the Haraka mail server to accept mail into a queue. This is the second in a series on how to configure and use this unique mail server.

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