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Category Archives: Uncategorized
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
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
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
certwatch
Because I just fell into the “forgot the renew my cert” trap again. One very important hint. Install crypto-utils on all machines where ssl-certs are used. It will check automatically all certs that are used by httpd.
Weekly Series: Tools you need to know
I wanted to write a weekly series for years. A series of all the cool tools that I show to people very often and allways create a jaw drop. Thanks to Michael for asking the question that reminded me of … Continue reading