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I have a server named site.dpt.myorg.local, which i want to access both with short name and with fqdn. When i try to use short site or site.dpt form, everything works just fine. However when i use fqdn - lookup works when using dig or nslookup, but fails when i use web browser, ssh and other tools.

I.e. ssh and ping fail with following error:

$ ssh -vvvv site.dpt.myorg.local
OpenSSH_7.2p2, OpenSSL 1.0.2j-fips  26 Sep 2016
debug1: Reading configuration data /home/user/.ssh/config
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 25: Applying options for *
debug2: resolving "site.dpt.myorg.local" port 22
ssh: Could not resolve hostname site.dpt.myorg.local: Name or service not known

$ ping site.dpt.myorg.local
ping: unknown host site.dpt.myorg.local

I have a following resolv.conf file:

search myorg.local dpt.myorg.local
nameserver 10.0.0.1
nameserver 10.0.0.2

My OS is Opensuse 42.3

Can anyone point me to the cause of this problem? Thanks!

Andrew
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  • Are your nameservers configured to handle `dpt.myorg.local`? – Sven Aug 22 '17 at 14:01
  • Yeah, nameservers are correct, i'm pinging the same full addresses from other machines in network just fine. On a test centos 6 box with same resolv.conf i can use all hostname forms – Andrew Aug 22 '17 at 14:46

2 Answers2

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I found the answer to my question: https://superuser.com/questions/704785/avahi-ping-cant-resolve-hostname-but-nslookup-can

the problem was in avahi service, configured by default for .local domain. fixing part of /etc/avahi/avahi-daemon.conf as

[server]
domain-name=.alocal

solved my problem.

Edit: Ended by disabling avahi since i had no need in it in my environment.

Andrew
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  • I think it's worth noting that the proper solution is to stop abusing `local` rather than changing avahi (or other mDNS implementation of choice) to operate in nonstandard ways or disabling it entirely (which might be a slightly cleaner middle ground). – Håkan Lindqvist Aug 22 '17 at 17:19
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The local TLD is reserved for use with mDNS and should not be used with regular DNS.

The proper solution would be to stop misusing local in this way.

Community
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Håkan Lindqvist
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