We have an old Cisco gateway/router that I can't get hairpinning to work on, so I thought I could solve my problem through DNS, as I'm already using one of our OpenSUSE machines as DNS server.
Say our external public domain is rgbastpqxyzw.com.com. In the LAN DNS server's settings I have lan.rgbastpqxyzw.com which has the records for various internal services. That works fine.
Now, the gateway/router port forwards several ports for two different internal servers. I want client programs that are run from outside and access rgbastpqxyzw.com:12345 and rgbastpqxyzw.com:54321 to be able to work from inside the LAN without needing to change the addresses to LAN IPs. How can I do that with DNS when ports 12345 and 54321 go to different machines inside the LAN?
Why, yes, I am a networking newbie...
Say our external public domain is rgbastpqxyzw.com.com. In the LAN DNS server's settings I have lan.rgbastpqxyzw.com which has the records for various internal services. That works fine.
Now, the gateway/router port forwards several ports for two different internal servers. I want client programs that are run from outside and access rgbastpqxyzw.com:12345 and rgbastpqxyzw.com:54321 to be able to work from inside the LAN without needing to change the addresses to LAN IPs. How can I do that with DNS when ports 12345 and 54321 go to different machines inside the LAN?
Why, yes, I am a networking newbie...