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Error 502 Bad Gateway nginx/1.18.0 (Ubuntu) after upgrading Host OS to Ubuntu 22.04

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  • seritest
    Junior Member
    • Sep 2025
    • 1

    #1

    Error 502 Bad Gateway nginx/1.18.0 (Ubuntu) after upgrading Host OS to Ubuntu 22.04

    Hi,
    We recently upgrade the Zabbix host OS from Ubuntu 20.04 to 22.04. Following the upgrade when trying to access the login page we receive the error: Error 502 Bad Gateway nginx/1.18.0 (Ubuntu).
    We were on Zabbix Version 6.1 so I upgraded to 7.4.2 hoping this my correct the problem but the issue remains.
    I can see in the /var/log/nginx/error.log connect() to unix:/var/run/php/zabbix.sock failed (2: No such file or directory) while connecting to upstream
    Could I have some help please?
    Thanks
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