Can’t open PID file /run/zabbix/zabbix_server.pid (yet?) after start: No such file or directory

Once, on Ubuntu 18.04.6 LTS, I updated the Zabbix server to version 6.0 LTS and the new version did not start.

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Zabbix: icmpping “Ping item must have target or host interface specified”

Once I upgraded Zabbix to version 6.4 and noticed that the “Template ICMP Ping” template stopped working on new devices, it continued to work on old ones, but if you add a new device, a warning was displayed:

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Zabbix. Upgrading the database to primary keys

Starting with Zabbix 6.0, primary keys are used for all tables in new installations, but since I upgraded Zabbix server to version 6.4, I had to manually update the tables after the upgrade.

Before updating, first of all, open the menu “Report” – “System Information” and make sure that the keys are not used, this will be indicated by the entry – “Database history tables use primary key – No”, if the keys are used, then this entry simply will not be.

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