[SOLVED] nginx.service failed

[Peter Nielsen]

Hi

After this weekend update I'm now getting errors on the nginx service, any ideas anyone?

/Peter

-----------

root@pmg:~# apt-get dist-upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
2 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n]
Setting up nginx-full (1.14.2-2+deb10u4) ...
Job for nginx.service failed because the control process exited with error code.
See "systemctl status nginx.service" and "journalctl -xe" for details.
invoke-rc.d: initscript nginx, action "start" failed.
● nginx.service - A high performance web server and a reverse proxy server
   Loaded: loaded (/lib/systemd/system/nginx.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Tue 2021-06-01 16:54:01 CEST; 23ms ago
     Docs: man:nginx(8)
  Process: 56794 ExecStartPre=/usr/sbin/nginx -t -q -g daemon on; master_process on; (code=exited, status=1/FAILURE)

Jun 01 16:54:01 pmg systemd[1]: Starting A high performance web server and a reverse proxy server...
Jun 01 16:54:01 pmg nginx[56794]: nginx: [emerg] a duplicate default server for 0.0.0.0:80 in /etc/nginx/sites-enabled/pmg-quarantine.conf:2
Jun 01 16:54:01 pmg nginx[56794]: nginx: configuration file /etc/nginx/nginx.conf test failed
Jun 01 16:54:01 pmg systemd[1]: nginx.service: Control process exited, code=exited, status=1/FAILURE
Jun 01 16:54:01 pmg systemd[1]: nginx.service: Failed with result 'exit-code'.
Jun 01 16:54:01 pmg systemd[1]: Failed to start A high performance web server and a reverse proxy server.
dpkg: error processing package nginx-full (--configure):
 installed nginx-full package post-installation script subprocess returned error exit status 1
dpkg: dependency problems prevent configuration of nginx:
 nginx depends on nginx-full (<< 1.14.2-2+deb10u4.1~) | nginx-light (<< 1.14.2-2+deb10u4.1~) | nginx-extras (<< 1.14.2-2+deb10u4.1~); however:
  Package nginx-full is not configured yet.
  Package nginx-light is not installed.
  Package nginx-extras is not installed.
 nginx depends on nginx-full (>= 1.14.2-2+deb10u4) | nginx-light (>= 1.14.2-2+deb10u4) | nginx-extras (>= 1.14.2-2+deb10u4); however:
  Package nginx-full is not configured yet.
  Package nginx-light is not installed.
  Package nginx-extras is not installed.

dpkg: error processing package nginx (--configure):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 nginx-full
 nginx
E: Sub-process /usr/bin/dpkg returned an error code (1)
root@pmg:~#

 

[dylanw]

Jun 01 16:54:01 pmg nginx[56794]: nginx: [emerg] a duplicate default server for 0.0.0.0:80 in /etc/nginx/sites-enabled/pmg-quarantine.conf:2

This seems to be the offending line.

Running grep -R default_server /etc/nginx may help you to find where the overlapping default server configuration is coming from.
Otherwise, just check if there are any unintended configurations found in this directory.

 

[Peter Nielsen]

This is what /etc/nginx/sites-enabled/pmg-quarantine.conf looks like:

server {
    listen 80 default_server;
    rewrite ^(.*) https://$host$1 permanent;
}
 
server {
    listen 443;
    server_name _;
    ssl on;
    ssl_certificate /etc/pmg/pmg-api.pem;
    ssl_certificate_key /etc/pmg/pmg-api.pem;
    proxy_redirect off;

    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
    proxy_set_header PVEClientIP $remote_addr;
    proxy_buffering off;
    client_max_body_size 0;
    proxy_connect_timeout  3600s;
    proxy_read_timeout  3600s;
    proxy_send_timeout  3600s;
    send_timeout  3600s;
    # proxy requests for static components
    location ~ /proxmoxlib.js$|/favicon.ico$|/pve2/|/fontawesome/|/framework7/|/pwt/css/ {
        proxy_pass https://localhost:8006;
    }
    location /quarantine {
        proxy_pass https://localhost:8006;
    }

    location /api2 {
        location ~ /api2/(extjs|json|htmlmail)/(access/ticket$|version$) {
            proxy_pass https://localhost:8006;
        }
        location ~ /api2/(extjs|json|htmlmail)/nodes/.+/subscription$ {
            proxy_pass https://localhost:8006;
        }
        location ~ /api2/(extjs|json|htmlmail)/quarantine {
            proxy_pass https://localhost:8006;
        }
        return 403;
    }

    location / {
        return 403;
    }
}

and this is the output root@pmg:~# grep -R default_server /etc/nginx

/etc/nginx/sites-available/pmg-quarantine.conf:    listen 80 default_server;
/etc/nginx/sites-available/default:     listen 80 default_server;
/etc/nginx/sites-available/default:     listen [::]:80 default_server;
/etc/nginx/sites-available/default:     # listen 443 ssl default_server;
/etc/nginx/sites-available/default:     # listen [::]:443 ssl default_server;
/etc/nginx/sites-enabled/pmg-quarantine.conf:    listen 80 default_server;
/etc/nginx/sites-enabled/default:       listen 80 default_server;
/etc/nginx/sites-enabled/default:       listen [::]:80 default_server;
/etc/nginx/sites-enabled/default:       # listen 443 ssl default_server;
/etc/nginx/sites-enabled/default:       # listen [::]:443 ssl default_server;

 

[dylanw]

If you remove default_server from /etc/nginx/sites-enabled/pmg-quarantine.conf, this should fix the issue.
You can also remove the default configuration from sites-enabled (or remove default_server from the files), should you want pmg-quarantine to be the default. In any case, there can only be one default_server.

 

[Peter Nielsen]

I temporerily removed the symbolic link to pmg-quarantine.conf, ran the update and now everything works again. Thanks for the help

 

[capt_redbeard]

i have the same issue but my error is dlopen() . this happened after updating from 6.4 to 7.1-8

nginx: [emerg] dlopen() "/usr/share/nginx/modules/ngx_stream_geoip_module.so" failed (/usr/share/nginx/modules/ngx_stream_geoip_module.so: undefined symbol: ngx_stream_add_variable) in /etc/nginx/modules-enabled/70-mod-stream-geoip.conf:1
nginx: configuration file /etc/nginx/nginx.conf test failed

 

[dodi71]

Same issue is happening to me

nginx: [emerg] dlopen() "/usr/share/nginx/modules/ngx_stream_geoip_module.so" failed (/usr/share/nginx/modules/ngx_stream_geoip_module.so: undefined symbol: ngx_stream_add_variable) in /etc/nginx/modules-enabled/70-mod-stream-geoip.conf:1

nginx: configuration file /etc/nginx/nginx.conf test failed