Resolved Server Error 502 Bad Gateway

[yusuf]

after update plesk to 17.5 i reboot server then i can't access plesk admin panel https://213.136.89.33:8443/ and i have this error

Server Error
502
Bad Gateway
Web server received an invalid response while acting as a gateway or proxy server.

 

[IgorG]

First of all, make sure that sw-cp-server service is up and running with

# systemctl status sw-cp-server
● sw-cp-server.service - Startup script for Plesk control panel server
Loaded: loaded (/usr/lib/systemd/system/sw-cp-server.service; enabled; vendor preset: disabled)
Active: active (running) since Mon 2017-10-02 05:24:04 NOVT; 4h 26min ago
Main PID: 2861 (sw-cp-serverd)
CGroup: /system.slice/sw-cp-server.service
├─ 2861 sw-cp-server: master process /usr/sbin/sw-cp-serverd -c /etc/sw-cp-server/config
└─23483 sw-cp-server: worker process

Try to start it if service is not active. Try to find a reason of problem in log file /var/log/plesk/sw-cp-server/error_log

 

[occinodo]

Try to check if Nginx is running under services, I found out that since updating all the packages Nginx isn't starting itself automatically anymore.

 

[UFHH01]

Hi occinodo,

Try to check if Nginx is running under services

The Plesk "sw-nginx" - package has got nothing to do with "sw-engine" ( Plesk Server Control Panel PHP-FPM - service ) and "sw-cp-server" ( Plesk Control Panel webserver ). Pls. try not to mix your webservers on your server ( apache + nginx ) for your hosted domains with the Plesk Control Panel webserver.

 

[Bitpalast]

It seems that the issue of the initial poster was solved? At least the panel is accessible on the url that he provided.

 

[yusuf]

thanks for reply my issue is resolved by its own i do nothing

this is error log

2017/10/02 14:42:41 [error] 25512#0: *7 open() "/usr/local/psa/admin/htdocs/currentsetting.htm" failed (2: No such file or directory), client: 27.19.182.17, server: , request: "GET /currentsetting.htm HTTP/1.1", host: "213.136.89.33:8443"
2017/10/05 20:37:16 [error] 25512#0: *264 open() "/usr/local/psa/admin/htdocs/a2billing/common/javascript/misc.js" failed (2: No such file or directory), client: 80.211.252.156, server: , request: "GET /a2billing/common/javascript/misc.js HTTP/1.1", host: "213.136.89.33:8443"