Hey folks, this is the third post about tweaking the Zabbix configurations. All changes that I've suggested here it's 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 …


Sometimes you get your self in need to monitor a website's health or it's content for changes. Of course, there's plenty of options out there, but for the sake of curiosity, let's code our own to see what we can do. First things first. Everything you'll see here, you can …



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 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 …


Flutter + firebase auth crashing

Hey Folks, recently I've started learning Flutter and right after a TODO List, I tried a Firebase integration. But as soon as I started setting the dependencies, my app stopped opening... just a crash. After a few logs digging, I've found the following log.

AndroidRuntime: FATAL EXCEPTION: main
AndroidRuntime: Process …


Your customer urge you to drop a user from the MsSQL Server database, but you stuck with the following related error:

Error: 15138 The database principal owns a schema in the database, and cannot be dropped.

If you don't have access to the SSMS to see which schema or objects …


Have you ever suffered from a slow SQLServer database? Someone love to run that heavy query in the database? Resource Governor to the rescue. You can set a few rules on how users (connections actually) will use the server/database resources based on a few things.

First things first, if …


Hey folks, it's been a time since my last post. In the meantime, I moved to another state, changed job, and started learning new kinds of stuff. Today I would like to share one thing that I usually do with my small git projects. Git has many cool features, git …



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