Resolved All Websites work under http2 except my Plesk Control Panel

[Tristan]

Hi There,

A little issue. I want my Plesk Control Panel also to use http2. But this is not the case.

Weird thing is that sites I host do use http2 only the control panel doesn't.

I would normally access the control panel through: https://mydomain.com:8443

I also modified /usr/local/psa/admin/conf/templates/default/domain/nginxDomainVirtualHost.php with the ssl http2 option. I found on another website and rebuild the nginx virtual hosts config. Restarted all services. But still no luck.

Did anyone else encounter this problem and might have a good tip for me?

Thanks, James

 

[Monty]

The Plesk webserver on port 8443 is a standalone webserver (nginx), customized by Plesk and independent of the webserver(s) used for your websites.
You'll find the config file for it here: /etc/sw-cp-server/conf.d/plesk.conf

But I suggest you don't modify that as it may get overwritten by a Plesk update or you may break something.

See also this thread: Question - How to activate http/2 for Plesk panel

 

[IgorG]

BTW, Related thread Resolved - plesk panel http/2

 

[Tristan]

Thanks! I've added http2 to the listen 8443 line in /etc/sw-cp-server/conf.d/plesk.conf "listen 8443 ssl http2;"
Also I added the same ssl ciphers as in my default nginx config:

/etc/sw-cp-server/conf.d/plesk.conf
server_names_hash_bucket_size 64;

server {
listen 8443 ssl http2;
listen 8880;
listen 127.0.0.1:8880 default_server;
include conf.d/*ipv6_ports.inc;


ssl_certificate /opt/psa/admin/conf/httpsd.pem;
ssl_certificate_key /opt/psa/admin/conf/httpsd.pem;

include conf.d/*plesk.inc;
include conf.d/*wpb.inc;
}


/etc/sw-cp-server/conf.d/ssl.conf
ssl_ciphers EECDH+AESGCM+AES128:EECDH+AESGCM+AES256:EECDH+CHACHA20:EDH+AESGCM+AES128:EDH+AESGCM+AES256:EDH+CHACHA20;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_prefer_server_ciphers on;

Thanks for the help! I just wanted it working. I know it can be overwritten but now I know how it works .