Zabbix Server Out of Memory log

Do you have a crashing Zabbix Server and looking through the log /var/log/zabbix/zabbix_server.log you see the following out of memory message?

__mem_malloc: skipped 0 asked 24 skip_min 18446744073709551615 skip_max 0
[file:dbconfig.c,line:94] __zbx_mem_realloc(): out of memory (requested 16 bytes)
[file:dbconfig.c,line …


If someday, for some reason, you need to establish a connection with a database which is behind a firewall and you only have SSH access on that server (and you don't want to use a CLI) you can do an SSH tunnel. It's pretty simple, bellow has a sample of …


From time to time, I change the Linux distro on my laptop or just do a fresh install on it. And once in a while, have random problems with external displays. It can be something really "simple" like don't detecting the external monitor or something crazy like the image below …