Set nginx access log and error log path in app.ini then restart nginx-ui.

Example:

[nginx_log]
AccessLogPath = /var/log/nginx/access.log
ErrorLogPath = /var/log/nginx/error.log

For nginx-ui docker users, if you upgrading from v1.5.2 or lower version, please add another access_log and error_log directive in your nginx.conf before setting the app.ini.

Because in nginx-ui container, /var/log/nginx/access.log is a symlink point to /dev/stdout, /var/log/nginx/error.log is a symlink point to /dev/stderr, so that you can view the nginx and nginx-ui log by using docker logs nginx-ui, but these two devices are not allow to tail, so we must use another log file to record nginx logs.

Example:

error_log  /var/log/nginx/error.log notice;
error_log  /var/log/nginx/error.local.log notice;

http {
    ...
    access_log  /var/log/nginx/access.log  main;
    access_log  /var/log/nginx/access.local.log  main;
    ...
}

Then, set nginx access log and error log path in app.ini and restart nginx-ui.

Example:

[nginx_log]
AccessLogPath = /var/log/nginx/access.local.log
ErrorLogPath = /var/log/nginx/error.local.log