Resolved Control Panel unreachable on port 8443

[aless]

Hi,

all of a sudden I am not able to reach the cp both on https://serverurl:8443 and http://serverurl:8880. Website and other services seem to work as usual though. Now, since I know that this can be related to a variety of issues, I would appreciate very much if someone could help me in creating a comprehensive list of possible related issues, in order for me to debug, and maybe for other people in the community dealing with the same problem to find them all in one place.

So far here is what I have investigated:

1. Firewall
Check if port 8443 is open. The actual iptables rule for ports 8443 and 8880 is
# iptables -I INPUT 1 -p tcp -m multiport --dports 8880,8443 -j ACCEPT

2. Fail2Ban
either start and stop doesn't solve the issue

3. Restart cp
# /etc/init.d/sw-cp-server restart
correctly restarts the cp, but with no effects

The error:log file in my /var/log/sw-cp-server folder says
# 25774#0: *1 connect() to unix:/var/run/sw-engine.sock failed (11: Resource temporarily unavailable)

What else should be checked in order to investigate further this issue?

 

[UFHH01]

Hi aless,

pls. consider to use as well:

/etc/init.d/sw-engine restart

or/and

service psa restart

... and report back, if this already solved your issue.

If the issue is still existent, pls. consider to have a new look at your error.log and pls. post as well the output of the example commands ( logged in as user "root" over SSH ):

ps aux | grep sw-

and

lsof -i | grep 8443
netstat -ltnp | grep 8443

lsof -i | grep 8880
netstat -ltnp | grep 8880

 

[aless]

Hi aless,

pls. consider to use as well:

/etc/init.d/sw-engine restart

Absolutely great. Many thanks! That solved the issue.

If I may ask, just for the record, what is the difference between the two services sw-cp-server and sw-engine?

Thanks again.

 

[UFHH01]

Hi aless,

what is the difference between the two services sw-cp-server and sw-engine?

"sw-cp-server" ist the Plesk webserver and "sw-engine" is the Plesk PHP-FPM service for the Plesk webserver.

 

[aless]

Hi aless,


"sw-cp-server" ist the Plesk webserver and "sw-engine" is the Plesk PHP-FPM service for the Plesk webserver.

Thanks!