LinuxQuestions.org - Does dnsmasq support reverse query?

Quote:

Originally Posted by your_shadow03 (Post 3786281)

I am looking for a lightweight DNS server and came up with dyndns and dnsmasq? I need both the forward and reverse DNS query?
Anyone who can recommend?

dnsmasq does reverse lookups.

With dnsmaq logging turned on in dnsmasq.conf

Code:

c:/var/log$ nslookup 64.233.181.103

Server:        127.0.0.1

Address:        127.0.0.1#53



Non-authoritative answer:

103.181.233.64.in-addr.arpa    name = ni-in-f103.1e100.net.



Authoritative answers can be found from:

181.233.64.in-addr.arpa nameserver = ns2.google.com.

181.233.64.in-addr.arpa nameserver = ns3.google.com.

181.233.64.in-addr.arpa nameserver = ns4.google.com.

181.233.64.in-addr.arpa nameserver = ns1.google.com.

ns1.google.com  internet address = 216.239.32.10

ns2.google.com  internet address = 216.239.34.10

ns3.google.com  internet address = 216.239.36.10

ns4.google.com  internet address = 216.239.38.10

From /var/log/debug

Code:

Dec 10 13:15:04 CW8 dnsmasq[6682]: query[PTR] 103.181.233.64.in-addr.arpa from 127.0.0.1

Dec 10 13:15:04 CW8 dnsmasq[6682]: forwarded 103.181.233.64.in-addr.arpa to 61.1.96.69

Dec 10 13:15:04 CW8 dnsmasq[6682]: forwarded 103.181.233.64.in-addr.arpa to 61.1.96.71

Dec 10 13:15:04 CW8 dnsmasq[6682]: forwarded 103.181.233.64.in-addr.arpa to 61.1.96.72

Dec 10 13:15:04 CW8 dnsmasq[6682]: forwarded 103.181.233.64.in-addr.arpa to 218.248.240.23

Dec 10 13:15:04 CW8 dnsmasq[6682]: forwarded 103.181.233.64.in-addr.arpa to 218.248.240.135

Dec 10 13:15:04 CW8 dnsmasq[6682]: forwarded 103.181.233.64.in-addr.arpa to 218.248.240.180

Dec 10 13:15:04 CW8 dnsmasq[6682]: forwarded 103.181.233.64.in-addr.arpa to 218.248.240.181

Dec 10 13:15:04 CW8 dnsmasq[6682]: forwarded 103.181.233.64.in-addr.arpa to 218.248.240.208

Dec 10 13:15:04 CW8 dnsmasq[6682]: forwarded 103.181.233.64.in-addr.arpa to 218.248.255.139

Dec 10 13:15:04 CW8 dnsmasq[6682]: forwarded 103.181.233.64.in-addr.arpa to 218.248.255.145

Dec 10 13:15:04 CW8 dnsmasq[6682]: forwarded 103.181.233.64.in-addr.arpa to 218.248.255.146

Dec 10 13:15:04 CW8 dnsmasq[6682]: reply 64.233.181.103 is ni-in-f103.1e100.net

dnsmasq was only only using so many DNS servers because it had just been restarted (with logging configured) so it was using all its known servers to see which was currently fastest. Doing a reverse lookup on 64.233.181.100 immediately afterwards produced only

Code:

Dec 10 13:20:07 CW8 dnsmasq[6682]: query[PTR] 100.181.233.64.in-addr.arpa from 127.0.0.1

Dec 10 13:20:07 CW8 dnsmasq[6682]: forwarded 100.181.233.64.in-addr.arpa to 61.1.96.69

Dec 10 13:20:07 CW8 dnsmasq[6682]: reply 64.233.181.100 is ni-in-f100.1e100.ne