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PHP-FPM: php-fpm_ping / wrong value / always down

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  • janlange
    Junior Member
    • Jan 2021
    • 12
    #1

    PHP-FPM: php-fpm_ping / wrong value / always down

    Hello,

    need a little help (I'm new to zabbix).

    I have 2 linux hosts.. on one the checks works on the other not.

    Host 1:
    Ubuntu 20.04.1 LTS
    Zabbix-Agent2 5.2.3
    php7.4-fpm 7.4.3
    Nginx 1.18.0

    Host 2:
    Ubuntu 18.04.4 LTS
    Zabbix-Agent2 5.2.3
    php7.2-fpm 7.2.24
    apache2 2.4.29

    So on Host 1 it failes.. see manual tests:
    Code:
    # zabbix_agent2 -t web.page.get["localhost","/ping","80"]
web.page.get[localhost,/ping,80] [s|HTTP/1.1 200 OK
Connection: close
Transfer-Encoding: chunked
Cache-Control: no-cache, no-store, must-revalidate, max-age=0
Content-Type: text/plain;charset=UTF-8
Date: Sun, 10 Jan 2021 12:19:34 GMT
Expires: Thu, 01 Jan 1970 00:00:00 GMT
Server: nginx/1.18.0 (Ubuntu)

4
pong
0]
    Zabbix takes the "0" and means, service is down.

    But if I use curl directly, the answer is correct:
    Code:
    # curl localhost/ping
pong
    On Host 2 it works:
    Code:
    # zabbix_agent2 -t web.page.get["localhost","/ping","80"]
web.page.get[localhost,/ping,80] [s|HTTP/1.1 200 OK
Connection: close
Cache-Control: no-cache, no-store, must-revalidate, max-age=0
Content-Type: text/plain
Date: Sun, 10 Jan 2021 12:19:24 GMT
Expires: Thu, 01 Jan 1970 00:00:00 GMT
Server: Apache/2.4.29 (Ubuntu)
Vary: Accept-Encoding

pong]
    And curl says the same:
    Code:
    # curl localhost/ping
pong
    Last edited by janlange; 10-01-2021, 14:37.
    Tags: None
    • janlange
      Junior Member
      • Jan 2021
      • 12
      #2
      I see on every page I get above a "checksum?" and at the end one zero.

      Look:
      Code:
      # zabbix_agent2 -t web.page.get["localhost","/","80"]
web.page.get[localhost,/,80] [s|HTTP/1.1 200 OK
Connection: close
Transfer-Encoding: chunked
Content-Type: text/html
Date: Sun, 10 Jan 2021 12:39:47 GMT
Etag: W/"5e9efe7d-264"
Last-Modified: Tue, 21 Apr 2020 14:09:01 GMT
Server: nginx/1.18.0 (Ubuntu)

[B]264[/B]
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
body {
width: 35em;
margin: 0 auto;
font-family: Tahoma, Verdana, Arial, sans-serif;
}
</style>
</head>
<body>
<h1>Welcome to nginx!</h1>
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p>

<p>For online documentation and support please refer to
<a href="http://nginx.org/">nginx.org</a>.<br/>
Commercial support is available at
<a href="http://nginx.com/">nginx.com</a>.</p>

<p><em>Thank you for using nginx.</em></p>
</body>
</html>

[B]0[/B]]
      Is this a problem with nginx?

        Comment

        • janlange
          Junior Member
          • Jan 2021
          • 12
          #3
          Have found the problem myself.

          In nginx for zabbix requests via web.page.get, I must tell nginx the parameter "chunked_transfer_encoding off", because zabbix cannot interpret it.

            Comment

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