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Host becomes unknown after reboot of zabbix server

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  • conny.lindqvist@presto.se
    Junior Member
    • Jun 2024
    • 3

    #1

    Host becomes unknown after reboot of zabbix server

    Hi all.
    As the title say. I got this odd GUI behaviour. If I make a mayor update of any kind, like Ubuntu from 22.04 to 24.04 and reboot the zabbix it works fine etc but in the GUI I get a lot of hosts (hosts with agents only) that shows up as unknown.
    My workaround to fix it is to mass disable them and then mass enable them again. Works everytime. Bit annoying though.

    I seen this behaviour twice now. First when I updated from Zabbix 7.2 to 7.4 and later today when I did the ubuntu upgrade. In both cases I rebooted the entire server.

    If I just leave them they wont come back "green" so to speak but stays unknown until I run disable/enable on them.

    Just wonder if its me or something common?

    I am currently on Ubuntu 24.04 and Zabbix 7.4.7 with a mix of older agents out there. 7.0 and up. Havnt gotten around to lift all the agents yet.
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