Encryption support is one of the long-awaited features in Zabbix. There were various proposals to provide it: from pre-shared secret key (PSK) authentication to full TLS and Kerberos support. A year ago it was decided to go ahead and provide encryption support based on TLS.

Until Zabbix 2.0.7 proxies used a simple algorithm for their configuration synchronization – overwriting the old configuration with a new one. Even unchanged records were updated. It produced a lot of SQL updates even when there were no changes in configuration. It worked good enough until one user wanted to synchronize a heavy loaded proxy […]

This came as the first assignment for me, a new Zabbix employee – to fix a bug ZBX-3788 zabbix daemon processes hang on futex Sometimes terminating a Zabbix agent with “killall -15 zabbix_agentd” resulted in one hanging process and other processes in the <defunct> state. strace utility showed the process was hanging on futex: Process […]