Custom ports broke Apache

Virtualmin
1

OS: Ubuntu Linux 20.04.2, Webmin: 1.973, Virtualmin: 6.16, Usermin: 1.823, Authentic Theme: 19.73

I wanted Apache (v2.4.41) to listen to port 802 and 44302 instead of 80 and 443 on my Ubuntu server so I did the following:

  • Edited the port numbers in /etc/apache2/ports.conf. Now the file has just two lines and looks like this:

    Listen 802
Listen 44302

  • Edited the port number in /etc/apache2/sites-available/000-default.conf like this:

    <VirtualHost *:802>
  ....
</VirtualHost>

  • Edited the port number in /etc/apache2/sites-available/default-ssl.conf like this:

    <IfModule mod_ssl.c>
  <VirtualHost *:44302>
    ....
  </VirtualHost>
</IfModule>

  • Edited the port number in the other virtual hosts inside /etc/apache2/sites-available as well.

  • Restarted apache

  • Confirmed apache is listening to the new ports by using netstat as well as lsof and got the following:

netstat:

tcp6       0      0 :::44302         :::*            LISTEN      113959/apache2
tcp6       0      0 :::802           :::*            LISTEN      113959/apache2

lsof -i:802

COMMAND    PID     USER   FD   TYPE     DEVICE SIZE/OFF NODE NAME
apache2 113959     root    4u  IPv6 3543809823      0t0  TCP *:802 (LISTEN)
apache2 113960 www-data    4u  IPv6 3543809823      0t0  TCP *:802 (LISTEN)
apache2 113961 www-data    4u  IPv6 3543809823      0t0  TCP *:802 (LISTEN)

lsof -i:44302

COMMAND    PID     USER   FD   TYPE     DEVICE SIZE/OFF NODE NAME
apache2 117939     root    6u  IPv6 3547650042      0t0  TCP *:44302 (LISTEN)
apache2 117940 www-data    6u  IPv6 3547650042      0t0  TCP *:44302 (LISTEN)
apache2 117941 www-data    6u  IPv6 3547650042      0t0  TCP *:44302 (LISTEN)

  • Confirmed nothing else is listening port 80 and 443 by using both netstat and lsof.

  • Change the ports for the existing virtual servers by going to Server Configuration > Change IP Adress and added the new ports there. Now Current web ports show 802 (HTTP) 44302 (HTTPS) .

  • Change the default ports in System Settings > Server Templates > Default Settings to 802 and 44302.

  • Restarted apache and webmin.

Now when I try to access any of the websites or even the server ip address on port 802, I get a This site can’t be reached error. Sites can be accessed fine on port 44302 however.

http://ipaddress:802 OR http://example.com:802 ---- DOESN’T WORK
https://ipaddress:44302 OR https://example.com:44302 ---- WORKS FINE

What am I doing wrong and how can I fix this?

2

Hi,

The port 44302 by default is in range of opened ports in Firewall, while 802 is not.

3

Oh I see. I just found out about the whole 1023 port restrictive range just now. I changed it to 8080 as recommended by a few articles online and it’s working beautifully now.

Thank you so much for the help @Ilia

4

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