1 minute read Modified:
When analysing a problem at work a colleague mentioned dnstop. So I decided to run it on my local DNS server. Then I noticed an Ubuntu system doing a lot of DNS queries when it wasn’t really used.
When using tcpdump on the DNS server I noticed the system dit a query for daisy.ubuntu.com every 10 seconds.
2 minute read Modified:
After a Debian upgrade from squeeze (via wheezy) to jessie, I got the following message when I tried to start tomcat on the machine:
/vol/www/tomcat/bin/catalina.sh: 1: eval: /usr/local/java7/bin/java: not found
1 minute read Modified:
Recently I upgraded a server from Fedora 21 to Fedora 23. This was a difficult process because newer kernels (> 3.14.23-100.fc19) won’t work with the system. Finally I was able to boot the system with the old kernel, but I was not seeing any information in /var/log/maillog. Sendmail was running and I was able to send and receive messages, but nothing was written to the maillog.
When I talked to somebody in #fedora he mentioned I could do a test by running the following simple command:
logger "hello world"logger: socket /dev/log: Connection refused2 minute read Modified:
I still have an old 486SX25 system which I use to run multiple ssh sessions to different other systems. For instance to use IRC or view email. This way I can keep track of those things when doing things in fullscreen on my main desktop. The system started showing the following error on every virtual console:
eth0: mismatched read page pointers 4c vs ff
After a time I saw the connections to other systems fail.
6 minute read Modified:
I used my servers’ IPMI (Intelligent Platform Management Interface)/BMC (Baseboard Management Controller) connection to connect the FreeNAS-9.3-CURRENT-201503130047.iso to the console and booted the system via the CDROM interface.
After the iso has booted, it displays a grub menu to boot the FreeNAS installation. When you do nothing this option is chosen by default.