Hello I updated Debian 10 to 11 and ISP config with tutorial from howtoforge. Update worked without any problem, but customer sites are not available. ISP config site is working, but on Roundcude and website are errors. Roundcube error is: ERROR 404 - Not Found! The requested URL was not found on this server. Please check the URL or contact the webmaster. Websites error is: The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later. Additionally, a 503 Service Unavailable error was encountered while trying to use an ErrorDocument to handle the request. Apache2, mysql, php and other services (postfix, dovecot bind9, ssh, pure-ftpd) are working. Do you have any idea, where is the problem ? Thank you
There was error Python version mismatch, expected '3.9.0+', found '3.9.2'. in apache error.log. I resolved this error with: apt update apt remove libapache2-mod-python apt build-dep libapache2-mod-python but sites are still not work sites error.log [Thu Aug 18 13:50:14.617329 2022] [proxy:error] [pid 9120] (2)No such file or directory: AH02454: FCGI: attempt to connect to Unix domain socket /var/lib/php7.3-fpm/web9.sock (*:80) failed [Thu Aug 18 13:50:14.617367 2022] [proxy_fcgi:error] [pid 9120] [client 82.193.104.168:10684] AH01079: failed to make connection to backend: httpd-UDS [Thu Aug 18 13:56:52.375205 2022] [proxy:error] [pid 9122] (2)No such file or directory: AH02454: FCGI: attempt to connect to Unix domain socket /var/lib/php7.3-fpm/web9.sock (*:80) failed [Thu Aug 18 13:56:52.375326 2022] [proxy_fcgi:error] [pid 9122] [client 66.249.65.189:48257] AH01079: failed to make connection to backend: httpd-UDS [Thu Aug 18 13:56:52.376295 2022] [proxy:error] [pid 9122] (2)No such file or directory: AH02454: FCGI: attempt to connect to Unix domain socket /var/lib/php7.3-fpm/web9.sock (*:80) failed [Thu Aug 18 13:56:52.376323 2022] [proxy_fcgi:error] [pid 9122] [client 66.249.65.189:48257] AH01079: failed to make connection to backend: httpd-UDS I think, that configuration is not properly. Part of upgrade proces was update from php 7.3 to 7.4, but i made every part of tutorial without problem and ISP config site is working Thank you
Seems as if php 7.3 was removed. Try installing it again as your website still use it. The link can be found in the upgrade guide: https://www.howtoforge.com/update-the-ispconfig-perfect-server-from-debian-10-to-debian-11/
