Restart gunicorn-trademark-dev.socket
# sudo systemctl restart gunicorn-trademark-dev.socket

Check status gunicorn-trademark-dev.socket
# systemctl status gunicorn-trademark-dev.socket
Failed to dump process list, ignoring: No such file or directory
● gunicorn-trademark-dev.socket - gunicorn-trademark-dev socket
   Loaded: loaded (/etc/systemd/system/gunicorn-trademark-dev.socket; enabled; vendor preset: enabled)
   Active: active (listening) since Sun 2021-08-08 19:53:31 BST; 37s ago
   Listen: /run/gunicorn-trademark-dev.sock (Stream)
   CGroup: /system.slice/gunicorn-trademark-dev.socket


Check 50 last logs and follow real-time logs for gunicorn-trademark-dev.service
# journalctl -n 50 -f -u gunicorn-trademark-dev.service



Check status gunicorn-trademark-dev.service
# systemctl status gunicorn-trademark-dev.service
● gunicorn-trademark-dev.service - gunicorn-trademark-dev daemon
   Loaded: loaded (/etc/systemd/system/gunicorn-trademark-dev.service; disabled; vendor preset: enabled)
   Active: active (running) since Sun 2021-08-08 19:56:37 BST; 14min ago
 Main PID: 11621 (gunicorn)
    Tasks: 5 (limit: 4915)
   CGroup: /system.slice/gunicorn-trademark-dev.service
           ├─11621 /home/trademark-dev/trademark-classes.com/mydjangoenv/bin/python /home/trademark-dev/trademark-classes.com/mydjangoenv/bin/gu
           ├─11622 /home/trademark-dev/trademark-classes.com/mydjangoenv/bin/python /home/trademark-dev/trademark-classes.com/mydjangoenv/bin/gu
           └─11623 /home/trademark-dev/trademark-classes.com/mydjangoenv/bin/python /home/trademark-dev/trademark-classes.com/mydjangoenv/bin/gu

Aug 08 19:56:37 django1 gunicorn[11621]: [2021-08-08 19:56:37 +0100] [11621] [INFO] Listening at: unix:/run/gunicorn-trademark-dev.sock (11621)
Aug 08 19:56:37 django1 gunicorn[11621]: [2021-08-08 19:56:37 +0100] [11621] [INFO] Using worker: sync
Aug 08 19:56:37 django1 gunicorn[11621]: [2021-08-08 19:56:37 +0100] [11622] [INFO] Booting worker with pid: 11622
Aug 08 19:56:37 django1 gunicorn[11621]: [2021-08-08 19:56:37 +0100] [11623] [INFO] Booting worker with pid: 11623
Aug 08 19:56:39 django1 gunicorn[11621]:  - - [08/Aug/2021:18:56:39 +0000] "GET / HTTP/1.0" 200 18382 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_6
Aug 08 19:57:16 django1 gunicorn[11621]: ########################################
Aug 08 19:57:16 django1 gunicorn[11621]: /resource_center/
Aug 08 19:57:16 django1 gunicorn[11621]:  - - [08/Aug/2021:18:57:16 +0000] "GET /resource_center/ HTTP/1.0" 302 0 "http://trademark-classes.com/
Aug 08 19:57:16 django1 gunicorn[11621]:  - - [08/Aug/2021:18:57:16 +0000] "GET /accounts/login?redirect_url=/resource_center/ HTTP/1.0" 200 576
Aug 08 19:57:24 django1 gunicorn[11621]:  - - [08/Aug/2021:18:57:24 +0000] "GET / HTTP/1.0" 200 18382 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_6


Restart gunicorn-trademark-dev.service
# sudo systemctl restart gunicorn-trademark-dev.service



Change nginx virtual host file

# nano /etc/nginx/conf.d/trademark-classes.com.conf

Check  syntax for nginx vitrual host

# sudo nginx -t

Reload nginx
# sudo systemctl reload nginx