TCP Port 53 CSF wont open?

[Justin Conte]

Hi Everyone, first post... (and yes I searched first, extensively)

Have obviously fully updated dedicated cpanel server with CSF running...

UDP Port 53 works for DNS IN/OUT no problems, but TCP:53 doesn't...

I went through CSF IPv4 and IPv6 and noted the "query-source port 53;" needs to go in /etc/named.conf in { options } - Which I did.
I changed CSF to a static firewall (0 LF-SPI)

Checked with datacentre and they have no blocking to that port for my IP's (if I specifically ask they would block)

I have tried everything including disabling CSF (testing mode) and manually forcing IPv4 (option -4) and so on..

Restarting named (bind) each time...

What am I doing wrong, I kind of probably have the solution right in front of me but have been at it too long and have lost it... lol

Thanks for any help in advance

 

[cPanelMichael]

Hello,

Can you let us know the specific method you are using to verify that TCP connections over port 53 are blocked?

Thank you.