Kerberos and LDAP are today’s way of single sign on. It is platform independent and supported by a wide range of applications. Together with the Red Hat Directory Server (also available as CentOS Directory Server and 389 Directory Server from Fedora) you can build a neat identity management infrastructure. Setting up the Directory Server However ….Read More
Month: November 2009
Managing CentOS with Spacewalk
Red Hat RHN Satellite In 2003 Red Hat released its RHN Satellite server as a closed source management tool for RHEL and only for RHEL (okay, a legacy support for managing Solaris is available). The satellite is very useful tool for managing systems. Unfortunately it has a quite expensive price tag on it. According to ….Read More
Confused about write barriers on file systems…
As ext3 is already known as a very robust file system why is the default mount option still barrier=0? The problem is LVM and the device mapper. They do not support barriers. When mounting ext3 on a LV, the option barrier=1 it should be ignored and a warning written. So far so good. Trying this brings ….Read More