Hey folks, this is the third post about tweaking the Zabbix configurations. All changes that I've suggested here were based on a Zabbix Server with 50+ hosts. Another thing that can happen to your server, it's the poller get overwhelmed by the amount of servers that need to be polled …


So your monitoring sytems have grown and your zabbix started loggin "Zabbix icmp pinger processes more than 75% busy" at the dashboard.

Dashboard do zabbix avisando sobre o erro

All you have to do is open your config file (/etc/zabbix/zabbix_server.conf) and find the a tag named StartPingers. It'll be commented by default. Uncomment it …


Zabbix Server Out of Memory

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 …