Category Archives: Linux

Everything about Linux, doesn’t matter which version.

RHEL6.4 and NX

Be careful if you update to RHEL6.4 and you are using NX. RHEL6.4 removes the  keymap.dir and this breaks NX at the moment. To fix this, simply do a touch /usr/share/X11/xkb/keymap.dir. It looks like that RedHat will not fix this, … Continue reading

Posted in Enterprise Linux, Fedora, Linux | Tagged | Comments Off on RHEL6.4 and NX

Todo after a Fedora upgrade

Even with the new fedup tool to upgrade. There are a couple of commands I use always after an upgrade. I suggest you use them too: yum distro-sync package-cleanup –problems package-cleanup –orphans rpmconf -a -fvimdiff rpmorphan Helps to keep your … Continue reading

Posted in Fedora, Linux, Uncategorized | Tagged | 1 Comment

ArgoEclipse is dead and broken

If you are using ArgoUML and thought “Hey, its written with Eclipse, lets try using it inside Eclipse”. I’m pretty sure you search found ArogEclipse. Please be aware this project looks very dead. I tried to open an perfectly good … Continue reading

Posted in Fedora, Linux, Uncategorized | Tagged | Leave a comment

Two enterprise Linux boxes are talking to each other, or not

I setup a  RedHat Enterprise Box that should serve as a httpd server for a Suse Enterprise Server zypper repository and it don’t work. Simple curl also don’t work. If you use curl -1 or curl -3 it works like … Continue reading

Posted in Enterprise Linux, Linux, Uncategorized | Tagged | Leave a comment

Enterprise Software

I have seen a lot of broken and bad RPM packages. From vmware packages that contains one big tarfile and the rpm-postscript uncompressed this into a directory. To test scripts from Oracle DB 11.2 that does not detect the 32bit … Continue reading

Posted in Enterprise Linux, Linux, Uncategorized | Tagged | 3 Comments

That happens if you put to much output on your serial console

We searched for multiple days why one of our cluster machines was hanging for a couple of seconds, before it was fenced. We found out that the iptables LOG did put to much output onto the serial. I wrote a … Continue reading

Posted in Enterprise Linux, Linux, Uncategorized | Tagged | Leave a comment

Oracle vs. Centos

As a lot of people have noticed Oracle is offering a “conversion” script to move from Centos to Oracle Linux. Of course it is not really a conversion, it only moves the yum repos from Centos to Oracle. The existing … Continue reading

Posted in Enterprise Linux, Linux, Uncategorized | Tagged | Leave a comment

new packages for my default install

In the last couple of week I added 3 new packages to my default install: 1.) atop is a very good extension of top, it includes disk and network utilization among other things. 2.) mosh is a ssh replacement / … Continue reading

Posted in Enterprise Linux, Fedora, Linux, Uncategorized | Tagged | Leave a comment

yum behind proxy gets “No more mirrors to try”

Have you ever had the problem with “No more mirrors to try” when behind a caching proxy? Especially with rpmfusion? You tried yum clean all, and still you are not able to download the xml or sqlite db? To fix … Continue reading

Posted in Enterprise Linux, Fedora, Linux | Tagged | Leave a comment

Enable serial console with systemd

If you need to enable a serial console on a systemd machine like Fedora 16, you have two possibilities. Start it immediately with: systemctl start getty@ttyS0.service or start it at every boot with: ln -s /usr/lib/systemd/system/getty@.service   /etc/systemd/system/getty.target.wants/getty@ttyS0.service

Posted in Fedora, Linux | Tagged | 3 Comments