Using Gmail or Google Apps for sendmail and postfix on Ubuntu
Lots of people have been asking us to update our previous guide on using Gmail and Google Apps under CentOS for Ubuntu. Wait no longer! […]
Linux
HOW TO: Remove old kernels in CentOS & RHEL
Removing older kernels in CentOS, RedHat Linux (RHEL), or Scientific Linux is really easy, if you know how! Yum provides a package called “yum-utils” that […]
Postfix with Gmail relay and IPv6
If you notice a message in maillog similar to the following, an easy fix (for now at least!) is to set Postfix to use IPv4: […]
Fixing locale and setlocale LC issues in CentOS and RHEL
Locale and setlocale LC error messages You may receive the following errors when logging in to your CentOS or Red Hat Enterprise Linux (RHEL) system […]
Change the default runlevel in CentOS and RHEL
Most servers are run without a GUI, although some administrators will install the GNOME desktop on a server in order to perform some tasks. By […]
Old PC as AirPlay receiver with Shairport & Ubuntu
The steps in this tutorial are designed to allow an old laptop with Ubuntu server – without any desktop environment installed – to output audio […]
Postfix relay using Gmail on CentOS
Many ISPs block sending email over port 25. This means that you won’t be able to send mail from your Linux server through simple commands […]
Set up Webmin on CentOS
Webmin is a popular web-based GUI for configuring some of the CentOS server options. You can install a repo so that it will be installed […]
Ensure CentOS has the right time
By default, the ntp service is not installed with CentOS 6. First, install ntp from yum: yum install ntp Then, force a time sync by […]
Mounting SMB Shares Hosted on Mac OS X from Linux
Apple used to use the Samba open source project as the basis for its Windows sharing options in Mac OS X. With Lion and now […]