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Thread: Can't SSH by domain name from local PC, but no problem from external PC

  1. #1
    Join Date
    Jan 2006
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    71

    Can't SSH by domain name from local PC, but no problem from external PC

    This is my set up.

    I owmn a domain, say domain.no , which is hosted by an ISP which also host a website of mine. Here I have setup an subdomain , local.domain.no , which points at my local IP. Behind my router I have a few PCs running Ubuntu and a NAS with built in ftp server.

    In my router I have setup a set of virtual servers behind diferent ports. A ftp pointing to my NAS, a ftp pointing to one of my PC and a SSH pointing to the same PC.

    When I am at work I have no problem to use SSH to enter my PC using the local.domain.no url . No problem, working perfectly everytime. But try doing the same from a local PC. Nope, won't work. I can do it using the IP adr. but point was to avoid remembering IP addresses.

    If i use yafc (ftp client) i can use the local.domain.no:1234 url to login to the ftp servers. But its not possible to enter via SSH from shell. I can however use SSH to access external servers, but not my local.

    What do I do wrong?

  2. #2
    Join Date
    Oct 2006
    Location
    New York
    Beans
    1,118
    Distro
    Xubuntu 12.10 Quantal Quetzal

    Re: Can't SSH by domain name from local PC, but no problem from external PC

    I had the identical problem, with a D-Link DIR-645, a router firmware upgrade fixed it. I don't believe I touched the config at all.

    What's your router make/model?
    xubuntu minimal, extensive experience, lshw: http://goo.gl/qCCtn
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  3. #3
    Join Date
    Jan 2006
    Beans
    71

    Re: Can't SSH by domain name from local PC, but no problem from external PC

    Its an belkin 600db
    It already have latest firmware. so....

    I cant see any settings that should prevent ssh to work when using my domain.

  4. #4
    Join Date
    May 2006
    Location
    Milwaukee,WI
    Beans
    6,107
    Distro
    Xubuntu 14.04 Trusty Tahr

    Re: Can't SSH by domain name from local PC, but no problem from external PC

    on your network what do you use for internal DNS? Also, are you saying that you have registed local.domain.no to be your external ISP provided IP address? I use hosts file within my internal network to provide hostnames to all my statically assigned IP address.
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