Hi All, I have setup a vmhost with KVM, Centos 7 and multiple VM's, with Shorewall looking after the multiple zones and the port forwarding.
One of the VM's is a webserver another a mail server. Mail is DNAT'ed from the internet facing interface to the mail server. Web is DNAT'ed from the internet facing interface to the web server. Both the web and mail server virtual machines are on different private subnets. The webserver hosts websites for similar domains that the mail server looks after. When the webserver is trying to send an email to the mail server it resolves the DNS to the internet facing IP address which is not forwarding the request to the mail server when it is coming from 'inside'. The mail is working fine from the 'internet' zone. How do I resolve this in Shorewall ?
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