[root@centosstream8 xpra]# cat proxy.log
2022-04-21 13:24:42,356 Error: cannot enable SSH socket upgrades:
2022-04-21 13:24:42,356  No module named 'paramiko'
2022-04-21 13:24:42,358 created tcp socket '0.0.0.0:14505'
2022-04-21 13:24:42,374 no uinput module
2022-04-21 13:24:45,264 serving html content from '/usr/share/xpra/www'
2022-04-21 13:24:45,274 wrote pid 1917 to '/run/xpra/20/server.pid'
2022-04-21 13:24:45,393 Warning: socket directory '/run/xpra/20'
2022-04-21 13:24:45,394  expected permissions 0o700 but found 0o750
2022-04-21 13:24:45,394 Warning: some of the sockets are in an unknown state:
2022-04-21 13:24:45,394  /root/.xpra/centosstream8-20
2022-04-21 13:24:45,419  please wait as we allow the socket probing to timeout
2022-04-21 13:24:51,455 created unix domain socket '/run/user/0/xpra/centosstream8-20'
2022-04-21 13:24:51,490 created unix domain socket '/run/xpra/centosstream8-20'
2022-04-21 13:24:51,522 created unix domain socket '/root/.xpra/centosstream8-20'
2022-04-21 13:24:51,539 created unix domain socket '/run/xpra/20/socket'
2022-04-21 13:24:51,744 xpra is ready.
2022-04-21 13:24:51,753 xpra proxy version 4.4-r31209 (g138728c46) 64-bit
2022-04-21 13:24:51,755  uid=0 (root), gid=0 (root)
2022-04-21 13:24:51,755  running with pid 1917 on Linux CentOS Stream 8
2022-04-21 13:24:51,807 watching for applications menu changes in:
2022-04-21 13:24:51,807  '/usr/local/share/applications'
2022-04-21 13:24:51,807  '/usr/share/applications'
2022-04-21 13:25:00,929 loaded 48 start menu entries from 8 sub-menus in 9.0 seconds
2022-04-21 13:25:43,628 New unix-domain connection received
2022-04-21 13:25:43,629  on '/run/user/0/xpra/centosstream8-20'
2022-04-21 13:25:43,631 New unix-domain connection received
2022-04-21 13:25:43,631  on '/run/user/0/xpra/centosstream8-20'
2022-04-21 13:25:44,369 New unix-domain connection received
2022-04-21 13:25:44,370  on '/run/xpra/20/socket'
2022-04-21 13:25:44,412 New unix-domain connection received
2022-04-21 13:25:44,412  on '/run/xpra/20/socket'
2022-04-21 13:25:45,007 New unix-domain connection received
2022-04-21 13:25:45,007  on '/run/xpra/centosstream8-20'
2022-04-21 13:25:45,078 New unix-domain connection received
2022-04-21 13:25:45,078  on '/run/xpra/centosstream8-20'
2022-04-21 13:25:45,635 New unix-domain connection received
2022-04-21 13:25:45,636  on '/root/.xpra/centosstream8-20'
2022-04-21 13:25:45,779 New unix-domain connection received
2022-04-21 13:25:45,780  on '/root/.xpra/centosstream8-20'
2022-04-21 13:26:27,419 Authentication required by PAM authenticator module
2022-04-21 13:26:27,419  sending challenge using xor digest over tcp connection
Entering daemon mode; any further errors will be reported to:
  /run/user/54322/xpra/S3371/server.log
Actual display used: :0
Actual log file name is now: /run/user/54322/xpra/0/server.log
2022-04-21 13:26:45,539 started proxy instance pid 3606
2022-04-21 13:26:45,545  for client ws socket: 192.168.0.31:14505 <- 192.168.0.15:64641
2022-04-21 13:26:45,549  and server unix-domain socket:  <- /run/user/54322/xpra/0/socket
2022-04-21 13:26:45,574 Warning: socket directory '/run/user/54322/xpra'
2022-04-21 13:26:45,578  expected permissions 0o775 but found 0o700
2022-04-21 13:26:45,587 proxy instance now also available using unix domain socket:
2022-04-21 13:26:45,587  /run/user/54322/xpra/centosstream8-proxy-3606
2022-04-21 13:26:45,936 proxy video encoders: none