[SSSD-users] 1.11.5 ddns failure on Ubuntu 14.04[SOLVED]

Longina Przybyszewska longina at sdu.dk
Wed Jun 25 08:53:31 UTC 2014


>By default, we contact the server we establish the LDAP connection with. I’m sorry, I got a bit lost in the thread — what was >the difference between the right server and the wrong server in your setup.

In our case,  DNS server is not LDAP - it is separate win DNS serer.
There is also split DNS server resolving all in/out requests from intern clients.
This one is known for resolver on all clients, but can't be used for dyndns updates. 

>In general, SSSD tries to do as little as possible and we try to let nsupdate do its job right..


But sssd supply data for update record for nsupdate, right?

---this doesn't work---
server nat-vdc0b.nat.domain.org 		
 realm NAT.DOMAIN.ORG
update delete skywalker. in A
send
update delete skywalker. in AAAA
send
update add skywalker. 3600 in A 10.80.8.91
send
----

---- works, after hokus-pokus with /etc/{hosts,hostname,dhclient}---
server nat-vdc0b.nat.c.sdu.dk
realm NAT.C.SDU.DK
update delete skywalker.nat.domain.org in A
send
update delete skywalker.nat.domain.org in AAAA
send
update add skywalker.nat.domain.org 3600 in A 10.80.8.91
send
----

How SSSD resolves domainname for machine for supplying to nsupdate record?
It could  be nice to be sure if 'dnsdomainname' returned   domainname, this one was used for 'nsupdate'.
In my initial config the following commands returned correctly:
hostname -s 
hostname -f
dnsdomainname
...but the nsupdate record was wrong. It was confusing...

 PTR dyndns still doesn’t work :

---- doesn’t work---
server server nat-vdc0b.nat.domain.org
realm NAT.DOMAIN.ORG
update delete 91.8.80.10.in-addr.arpa. in PTR 
update add 91.8.80.10-in-addr.arpa. 3600 in PTR skywalker.nat.c.sdu.dk.
send
---

Servers nat-vdc0{a,b,c}  are  LDAP servers for nat.domain.org not DNS servers.

Best
Longina



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