Unable to access External company website internaly
Hi I have an external website "www.mydomain.com" and my internal domain is called mydomain.com I use Proxy server for internet access so I am able to access the website fine from our internal network. We made a trust with another company who does not use proxy or anything to access the internet so there users go directly to the firewall and from here to a web content filtering site. When the trusted company tries to browse to www.mydomain.com they get an error as they are resolving the name internally via the DNS Stub zone in place for the trust. How can I allow the trusted company to browse to www.mydomain.com since they dont have anywhere on there domain where they add a DNS record to point to the website external IP address? Thanks, maelito
Maelito
October 8th, 2009 2:11pm
A common split DNS issue.If the website www.mydomain.com is hosted externally then you will have 2 DNS zones for mydomain.comOne hosted internally on yur company DNS servers with an A record with the external web server IP, and another hosted externally by an ISP or registrar with the same external A record.In this scanrio then either company would get the external IP and it would work fine.If the website www.mydomain.com is hosted internally then you will again have 2 DNS zones for mydomain.comHowever, your internal zone will have the internal IP address for www.mydomain.com , and the external would have the external IP.If the 2nd company has a stub zone of mydomain.com from your internal DNS server then they will resolve the internal IP of your web server.If your firewall does not allow port 80 between the 2 networks then you will need to rectify this.If this doesnt fly with your security guys you would need to dump the stub zone and move to a local zone at the 2nd company and change the record manually.
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October 8th, 2009 7:40pm


