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    Error 400 when using DynDNS domain name with Underscore.

    DHCP and DNS
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    • T
      The Computer Guy last edited by

      Had a strange one today, installed a customer firewall, Teamviewere'd into my server at home to check that I could login remotely, and was getting a 400 - Bad Request error.

      I had an underscore in the DynDNS domain name for the firewall and that was stopping it from working, interestingly enought, it was stopping OpenVPN from connecting too. Changed the unserscores to Hyphens and it works now.

      Running on an APU-1D Board -

      2.2.1-RELEASE (amd64)
      built on Fri Mar 13 08:16:49 CDT 2015
      FreeBSD 10.1-RELEASE-p6

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      • D
        doktornotor Banned last edited by

        @The:

        Had a strange one today, installed a customer firewall

        2.2.1-RELEASE (amd64)
        built on Fri Mar 13 08:16:49 CDT 2015
        FreeBSD 10.1-RELEASE-p6

        Any good reason why you installed 2.2.1, beyond the fact that it has tons of unfixed bugs, incl. serious issues with filesystem corruption?

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        • T
          Trel last edited by

          @The:

          Had a strange one today, installed a customer firewall, Teamviewere'd into my server at home to check that I could login remotely, and was getting a 400 - Bad Request error.

          I had an underscore in the DynDNS domain name for the firewall and that was stopping it from working, interestingly enought, it was stopping OpenVPN from connecting too. Changed the unserscores to Hyphens and it works now.

          Running on an APU-1D Board -

          2.2.1-RELEASE (amd64)
          built on Fri Mar 13 08:16:49 CDT 2015
          FreeBSD 10.1-RELEASE-p6

          Was the underscore in the primary domain name or in a subdomain?

          Ex: _here.example.com or example.he_re.com?

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          • T
            The Computer Guy last edited by

            @doktornotor:

            Any good reason why you installed 2.2.1, beyond the fact that it has tons of unfixed bugs, incl. serious issues with filesystem corruption?

            No, I need to go and update the firmware, changing from SD cards to mSATA so they'll play nice with the latest builds.

            @Trel:

            Was the underscore in the primary domain name or in a subdomain?

            Ex: _here.example.com or example.he_re.com?

            In the subdomain, it was -

            xxx_1cr_1.mydomain.xxx

            changed to

            xxx-1cr-1.mydomain.xxx and it's fine now.

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            • johnpoz
              johnpoz LAYER 8 Global Moderator last edited by

              Quick google shows that yeah _ not valid in fqdn

              https://en.wikipedia.org/wiki/Hostname#Restrictions_on_valid_host_names

              So webserver should balk at you with a 400 that its malformed..

              An intelligent man is sometimes forced to be drunk to spend time with his fools
              If you get confused: Listen to the Music Play
              Please don't Chat/PM me for help, unless mod related
              2440 2.4.5p1 | 2x 3100 2.4.4p3 | 2x 3100 22.01 | 4860 22.05

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              • T
                The Computer Guy last edited by

                There we go, something learnt every day and all that :) Cheers.

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