Re: [Mimedefang] DNS and MX records

2006-05-14 Thread netguy
John Rudd wrote: [snip] Why not have: - domain.tld have an A record (IP addr A) - web server listens to IP addr A on a virtual network interface. (in addition to listening to its regular IP addr on whatever other network interface it already has) - the only ports listening on IP addr A

Re: [Mimedefang] DNS and MX records

2006-05-14 Thread Jeff Rife
On 14 May 2006 at 6:53, netguy wrote: I am a small provider ( tiny ) and have multiple hosted domains behind a firewall with smtp,pop3, imap and www all pointing to a server behind the firewall. I can't seperate out the ports. Having another machine just for www doesn't make any sense to

Re: [Mimedefang] DNS and MX records

2006-05-14 Thread Ben Kamen
Jeff Rife wrote: You don't need another machine...just have more than one IP address on the server behind the firewall. For example: 172.16.0.1: base IP 172.16.0.2: listens on port 80 only 172.16.0.3: listens on port 25 only You (of course) need more than one public IP to pull this off:

Re: [Mimedefang] DNS and MX records

2006-05-14 Thread Jeff Rife
On 14 May 2006 at 13:10, Ben Kamen wrote: Not really. I have multiple machines with multiple services being a single public IP. The trick is to make sure the ports are different. I use a Netscreen 5XP and it handles this method (port based mapping) as well as a full IP to IP mapping just

Re: [Mimedefang] DNS and MX records

2006-05-14 Thread John Rudd
On May 14, 2006, at 5:53 AM, netguy wrote: John Rudd wrote: [snip] Why not have: - domain.tld have an A record (IP addr A) - web server listens to IP addr A on a virtual network interface. (in addition to listening to its regular IP addr on whatever other network interface it already