Finally, I was able to take a look at the Core Edition of Windows 2019, where I had to build a monitoring for the pending updates on the system. Since the monitoring agent only allows a timeout of 30 seconds… Continue Reading →
I would like to briefly tell you about a small and quickly solvable problem that hit me in my daily work environment. Recently I updated a server including the Zammad1 installation and prombt got some errors displayed. Error messages Failed… Continue Reading →
If you have several Linux servers in your care and are allowed to maintain them, you surely know the problem of different SSH keys for different customers, environments or security aspects. Now of course there are several solutions, one approach… Continue Reading →
I just did it, you did it also once and you will do it in the future or if you are on this page because you want to do it right know, its a honor for me to help you… Continue Reading →
If you dont have a iperf on your server and you cannot install it for some reasons my iperf article will not help you to determine your throuphput. But you can check your bandwidth with some other tools. Most of… Continue Reading →
Today i want to introduce a little bandwith measure tool to you. iperfis a tool to measure the bandwith between to systems. It is a client/server application, so you need to install it on both sides. To install this little… Continue Reading →
A few days ago, we had some strengh phenomenon on our Oracle RAC Servern with TNSListener Timeouts. EM Event: Critical:LISTENER_SCAN3_rac-scan – Listener response to a TNS ping is 5,010 msecs After some research and many hours of analysing, we could… Continue Reading →
All configurations needs to be done on every RAC-Node. All shell-outputs are examples. Prerequisites Oratab and Beoratab The following step are essential on every RAC-Instance. cp /etc/oratab /etc/VRTSralus/beoratab Setting the permissions for the beoratab: chown root:beoper /etc/VRTSralus/beoratab chmod g+w /etc/VRTSralus/beoratab… Continue Reading →
Here are some “quick & dirty” working userparameter for Zabbix :), they check: how many paths per device are available, if some of that paths are in a faulty state Number of paths UserParameter=Count.Multipath.Devices, echo $(( $(echo ‘show paths’ |… Continue Reading →
Zabbix, a good and extensive monitoringsystem, which is a great alternative to the well known monitoringsystems like Cacti and Nagios. In the beginning of building a monitoringsystem, there is always a bit planing before build it up and of course… Continue Reading →
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