WHMCS Whois Lookup issues

[mike08]

Hello everyone,

Today I just installed WHMCS to my webserver using Vesta, I just successfully installed everything regarding vesta and whmcs, now I'm just testing it out and the domain check availability does not work, it shows this error message after 10 or 15 secs:

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There was a problem connecting to the domain registry. Please try again later.

I was investigating that and I found that the port 43 could be blocked for outgoing connections as stated here:

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http://docs.whmcs.com/Common_Troubleshooting_Tips#There_was_a_problem_connecting_to_the_domain_registry

I tried opening the port 43 as stated below:

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iptables -t filter -A OUTPUT -p tcp -d 0.0.0.0/0 --dport 43 -j ACCEPT
iptables -t filter -A OUTPUT -p udp -d 0.0.0.0/0 --dport 43 -j ACCEPT

and it did not work, it is still showing the same error message, I've turned of iptables and it starts working properly when I do a domain availability lookup.

Sys info:
PRETTY_NAME="Debian GNU/Linux 7 (wheezy)" 64bits
vesta core package Version:0.9.8 (amd64) Release:14

If anyone has any idea on how to fix this matter that would be greatly appreciated :)

[mike08]

Any ideas? I'm not sure why I can't open those outgoing ports with vestacp!