DNS 'unable to add reverse map': timed out
I'm using Red Hat AS 4 and have installed DNS and DHCP.
My DNS setup works fine on the static defined machines (i.e. I can do nslookup on both IP or hostname and they resolve correctly) but I'm having problems with dynamic clients. My Windows 2003 client gets a DHCP assigned IP address OK and the ddns is updated - I can do nslookup on the machine name and get its IP but if I try nslookup on its IP it can't resolve it and I get a SERVFAIL message. I'm fairly new to linux so may be have made a schoolboy error somewhere so any help appreciated. The log looks like: Code:
Mar 21 14:42:49 ns0 dhcpd: Internet Systems Consortium DHCP Server V3.0.1 Code:
# Code:
// Code:
$TTL 86400 Code:
$TTL 86400 |
You have a misconfiguration in the dhcpd.conf, and your log told you as much with this line:
Code:
Mar 21 14:42:49 ns0 dhcpd: unable to add reverse map from 254.11.168.192.in-addr.arpa to DHCPTEST.vprolab.com: timed out The dhcpd.conf should have a minor change, so it looks like this: Code:
ddns-domainname "vprolab.com"; Peace, JimBass |
Thanks for the help Jim. By adding that line to dhcpd.conf I now get the message:
dhcpd: unable to add reverse map from 254.11.168.192.11.168.192.in-addr.arpa to DHCPTEST.vprolab.com: timed out Tearing my hair out a bit as I feel I've come so far and am so close to cracking it(considering my first exposure to linux was Monday!) |
Got it!
Deleted the journal files for the zones, restarted the service and hey presto! Thanks for the help. |
I'm glad it worked out for you. BIND was my first open-source experience as well. We ran it on windows servers, and when I saw how easy it was to understand, I was hooked.
Peace, JimBass |
Hello, if you are still around could you please clarify what steps you took to get rid of this error message. I added the ddns-rev-domainname line to my dhcpd.conf file and restarted both dhcpd and bind9, but I still get same error. How did you delete zone journals? I can't find mine anywhere? Thanks.
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