• Debian 11 is approaching its end-of-life (vendor EOL date - August 31, 2026). Plesk Obsidian 18.0.80 will be the last release to support it.
    If you are running Plesk Obsidian on Debian 11, we recommend you upgrade those servers to Debian 12 using our dist-upgrade tool.
  • We plan to deprecate and remove the support for XML RPC protocol versions earlier than 1.6.9.1 in Plesk Obsidian 18.0.82. We strongly recommend that you update all existing integrations using earlier versions of the XML RPC protocol to comply with the version 1.6.9.1 specification.

Resolved HTTP2 already enabled, Apache still using 1.0 in few requests

othmaqsa

Regular Pleskian
Server operating system version
20.04.4 LTS
Plesk version and microupdate number
18.0.45 Update #1
Hello,

HTTP/2 is already activated, however, I notice in the LOG requests that go through HTTP/1.

I checked on this site (HTTP/2 Test - Verify HTTP/2 Support | KeyCDN Tools) and the output is as follows:

HTTP/2 protocol is supported.
ALPN extension is supported.


Another information: I use the proxy mode.

Any idea why this happens?
 
I guess what you are seeing are HTTP/1.0 requests in the Apache log files (access_ssl_log). That's normal: nginx is the frontend server which is supporting HTTP/2 (as confirmed by your tests) but is using HTTP/1.0 internally to proxy the connection to Apache.

So short version: Nothing to worry about, it's expected behaviour.
 
Back
Top