Redhat released version 5.6 of the Redhat Satellite. Time to have a closer look to it and how to upgrade from version 5.5. New features Finally PostgreSQL support is mature enough for Enterprise usage. No need of a closed source data base anymore. This also brings a lot of new capabilities such as online backups ….Read More
Year: 2013
Intercepting proxies and spacewalk-repo-sync
More and more companies are using intercepting proxies to scan for malware. Those malware scanners can be problematic due to added latency. If you using spacewalk-repo-sync to synchronize external yum repositories to your custom software channels and experience the famous message [Errno 256] No more mirrors to try in your log files, then you need ….Read More
Centrally manage sudoers rules with IPA Part I – Preparation
One of the features of IPA is its facility to centrally manage sudoers rules. This rules can be based on user, group memberships etc. and be constrained to one or more servers. One of the benefits you get is: You are able to define stricter sudoers rules without annoying the users. At the end your ….Read More
Why journalctl is cool and syslog will survive for another decade
There was a recent discussion going on if Fedora 20 should drop rsyslog and just using systemd journal. A lot of people are afraid of systemd and its journal, this a pity. Well, there are pros and cons about this kind of logging. For System administrators daily use, journalctl is a powerful tool simplifying the ….Read More
Creating and managing iSCSI targets
If you want to create and manage iSCSI targets with Fedora or RHEL, you stumble upon tgtd and tgtadm. This tools are easy to use but have some obstacles to take care of. This is a quick guide on how to use tgtd and tgtadm. iSCSI terminology In the iSCSI world, we not taking about ….Read More
Creating a PHP application on Openshift
What is OpenShift? It is a cloud, it is from Red Hat. More precisely: A PaaS (Platform As A Service). It is available since quite some time now and I finally found some time to test it. Conclusion: It is very simple to use. This will guide you how to create a PHP application which ….Read More
Host based access control with IPA
Host based access control is easy with IPA/FreeIPA, very easy. Lets assume you want to have a host group called rhel-prod, a usergroup called prod-admins and you want to let them access the servers in the rhel-prod group by ssh from any host that can reach the servers. Lets call the HBAC rule prod-admins. You ….Read More