A collection of system administration hints and tips, tricks and articles for the Linux operating system in all its variants.

Setting up an SSHD failover daemon in Ubuntu

posted on 13th Aug, 2017

A simple article on how to create a failover SSH server on a Ubuntu system, allowing you to connect on an alternative port of the original SSHD fails

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rkhunter update fails with invalid WEB_CMD configuration option

posted on 6th Jun, 2017

An update to rkhunter will fail with Invalid WEB_CMD configuration option: Relative pathname: "/bin/false"

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Clearing GPG BADSIGerrors during update

posted on 12th Dec, 2015

During a test build of Ubuntu 15.10 I suddenly received the following error when refreshing the packages from the repository.

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Mounting an Mac OS X install DVD in Ubuntu 14.04

posted on 21st Oct, 2015

This document describes how to use a Linux computer to extract the BaseSystem.dmg image file from an Mac OS X (10.7+) installation DVD

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Mounting DFS on Oracle Linux

posted on 4th Nov, 2015

A short article on how to mount a DFS (distributed file system) on an Oracle Linux 5.11 system.

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Uninstalling VMware Workstation from a Linux Host

posted on 14th Jan, 2015

This article provides the simple steps needed to uninstall the VMware workstation from a Linux host. You must run the command from a Linux server.

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Configuring a basic firewall under Ubuntu 14.04

posted on 11th Jan, 2015

This article provides a quick reference to UFW commands that will create iptables firewall rules are useful in common, everyday scenarios.

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Tomcat 7 on CentOS 7

posted on 19th Dec, 2014

This post provides a basic installation and configuration of Tomcat 7 on a CentOS 7 server.

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