Allowing incoming connections

From: Riccardo Valente (Riccardo.Valenteat_private)
Date: Fri Oct 15 1999 - 01:18:53 PDT

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    Hello all, I'm considering the idea of allowing two incoming services through 
    my firewall (FireWall-1):
    
    (1) a newsfeed from a well-known machine at my ISP (PSINet), straight to my 
    news server;
    (2) email from anywhere to my mail server, but using FireWall-1 SMTP "security 
    server"; this intercepts the connection and acts like an SMTP proxy, so that 
    there's never a direct incoming connection to the internal server.
    
    So far I haven't though about moving these services to a DMZ, because in case 
    (1) I allow in just one IP address which I would consider "trusted", and in 
    case (2) I'm using an application proxy to protect my mail server.
    I'd like to hear your opinion on this configuration; would the (possibly) 
    better security worth the extra costs and efforts of setting up a DMZ for 
    those services?
    
    Regards,
    Riccardo
    



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