Dynamic dns for local (not exterior) ip?



  • Hello,

    I have just set up a separate vpn gateway at a remote site where I do not have authority to change their firewall. I was pleasantly surprised when use of dynamic dns still used the external firewall address to update aws route53. I was immediately able to put this to use.

    However, I would also like to have a dns name updated with the local lan ip address, rather than the exterior address. Is there a setting that will allow me to do this?

    Thank you for your time!

    I am running pfsense 2.4.4-release-p2.

    --jason



  • @jason0

    ????

    Why would you need dynamic DNS to do that? Just configure the pfSense DNS server with the host name and address. The intent of those dynamic DNS services is to track your DHCP assigned address, which might change.



  • Ah, there wouldn't be much point using pfsense's dns server. It is a remote endpoint in a site-to-site vpn to my main office. I am almost never in the remote office, I just want to connect to this vpn gateway by name rather than ip over the vpn.

    It's made difficult by the fact the vpn endpoint is behind a different firewall (I have no access) and the ip address on the endpoint is assigned via dhcp. I wanted to be able to update the lan ip dynamically.

    I don't mind having a non-routable ip address in aws route53.

    --jason


  • LAYER 8 Global Moderator

    Huh?? I have read this over 3 times now and for the life of me can not figure out what your wanting to do?

    What I can tell you is putting rfc1918 for something resolve publicly is BORKED beyond BORKED!! And won't work from any place that does even the min of rebind protection.

    What exactly are you trying to resolve and from where? And does it change?



  • @johnpoz said in Dynamic dns for local (not exterior) ip?:

    Huh?? I have read this over 3 times now and for the life of me can not figure out what your wanting to do?

    I think this forum needs an emoticon for "WTF?".

    I'm also struggling to understand what he wants. When a VPN such as OpenVPN is used the client device can be made to use the DNS at the server end.


  • LAYER 8 Global Moderator

    @jknott said in Dynamic dns for local (not exterior) ip?:

    I think this forum needs an emoticon for "WTF?".

    Hehehe I agree - what do you think this would look like exactly?

    0_1549052899662_wtf.png



  • Hmm. YOu've given me food for thought. I need to dig a bit further. I do have coherent explanations, but I need to take your suggestions into consideration.

    --jason



  • @johnpoz said in Dynamic dns for local (not exterior) ip?:

    @jknott said in Dynamic dns for local (not exterior) ip?:

    I think this forum needs an emoticon for "WTF?".

    Hehehe I agree - what do you think this would look like exactly?

    0_1549052899662_wtf.png

    Yep, that's exactly what we need. 😉


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