why am i having this error Check self-signed SSL certificate warning and can't sign in after 5-10seconds

Posted July 21, 2021 141 views
Ubuntu 20.04

i have finished setting up the webmin and after like 5-10 mins i will be kicked out… this is the error
i get Can’t establish a connection to the server at

Check self-signed SSL certificate warning
Check the server status
Check the connection

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1 answer

Hi @rodman0803,

That’s normal behavior. You can’t have an SSL certificate on an IP address. You can try and Add Exception for this website/IP address on your browser and this should be fine.

If I’ve misunderstood the issue and you are not able to connect due to another reason, it’s possible your firewall is blocking the connection to port 10000. On an Ubuntu server with UFW firewall, we execute

sudo ufw allow 10000/tcp

Similarly, to open port 10000 in iptables, we use

iptables -A INPUT -p tcp -d 0/0 -s 0/0 --dport 10000 -j ACCEPT