Re: [webmin-l] Virtualmin Email Doesn't Work

[Kimberly <kim...@gm...>]

I shut and disabled firewalld.  I installed iptables-services.  I then 
started iptables and flushed all rules and chains leaving a completely 
clean firewall rule set with just the default chains with no rules.  I 
then proceeded to add my rules for allowing traffic on 80 and 443 and 25 
and ssh etc.  After finishing I tested with telnet xxx.xxx.xxx.xxx 25 
and low and behold Postfix responded.  I need to add ports for IMAP and 
usermin and a few other things but I think the problem is solved.

My server is CentOS 7.  The installation of Virtualmin was on a bare 
server using install.sh with php 5.6.x and MariaDB 10.1.x being the only 
two things I added before Virtualmin.  I don't know if this has 
something to do with firewalld itself or the rules that Virtualmin 
creates when it installs.  Personally, I think for internet servers 
firewalld is not necessary as we don't need zones as one might wish for 
a home computer.  From now on, I will not waste time with firewalld and 
will be using iptables for all internet servers.



On 04/01/19 17:22, Kris Deugau wrote:
> Kimberly wrote:
>> firewall-cmd --zone=public --list-all
>> public (active)
>>    target: default
>>    icmp-block-inversion: no
>>    interfaces: lo enp2s0
>>    sources:
>>    services: ssh dhcpv6-client smtp smtps ftp pop3 pop3s imap imaps 
>> http https
>>    ports: 587/tcp 53/tcp 20/tcp 2222/tcp 10000-10100/tcp 20000/tcp 
>> 1025-65535/tcp 53/udp
>
> These two lines don't seem to match up;  if smtp and smtps are 
> allowed, ports 25 and 465 should be allowed as well as 587. 
> firewalld's configuration may be defining these differently for some 
> reason, but this looks likely to be the root of your problem.
>
> -kgd
>
>
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