[Dnsmasq-discuss] basic host name problem

Adam Hardy adam.ant at cyberspaceroad.com
Tue Jan 26 09:19:57 GMT 2010


richardvoigt at gmail.com on 26/01/10 01:56, wrote:
>>>> There must be something missing from my dnsmasq config because I see now that
>>>> any attempt to use the host names of dhcp clients from the gateway server fail
>>>> with " unknown host ...". I'm on debian stable if that makes any difference
>>> Sounds like your gateway is not using dnsmasq for lookups.  dnsmasq
>>> tells dhcp clients to use its services, but the gateway you will have
>>> to manually configure in /etc/resolv.conf to send requests to the
>>> local dnsmasq process.
>> I mistakenly included the /etc/hosts file instead of the /etc/resolv.conf file
>> which would have been far more informative re this problem.
>>
>> It looks like this:
>>
>> adam at isengard:~$ cat /etc/resolv.conf
>> domain isengard.localdomain
>> search isengard.localdomain
>> nameserver 127.0.0.1
>> nameserver 194.74.65.68
> 
> Run netstat whilst dnsmasq is stopped, to see if any other dns-capable
> daemon could be binding port 53 and preventing dnsmasq from receiving
> the queries.


This is what I see:

Interesting ports on localhost (127.0.0.1):
Not shown: 1703 closed ports
PORT     STATE SERVICE
21/tcp   open  ftp
22/tcp   open  ssh
25/tcp   open  smtp
111/tcp  open  rpcbind
139/tcp  open  netbios-ssn
445/tcp  open  microsoft-ds
631/tcp  open  ipp
3306/tcp open  mysql
3689/tcp open  rendezvous
7634/tcp open  hddtemp
8009/tcp open  ajp13
8080/tcp open  http-proxy

Read data files from: /usr/share/nmap
Nmap done: 1 IP address (1 host up) scanned in 0.148 seconds
adam at isengard:~$  netstat -an |grep -i "listen "
tcp        0      0 0.0.0.0:11301           0.0.0.0:*               LISTEN
tcp        0      0 127.0.0.1:6600          0.0.0.0:*               LISTEN
tcp        0      0 0.0.0.0:3689            0.0.0.0:*               LISTEN
tcp        0      0 127.0.0.1:3306          0.0.0.0:*               LISTEN
tcp        0      0 0.0.0.0:33005           0.0.0.0:*               LISTEN
tcp        0      0 0.0.0.0:111             0.0.0.0:*               LISTEN
tcp        0      0 127.0.0.1:7634          0.0.0.0:*               LISTEN
tcp        0      0 0.0.0.0:21              0.0.0.0:*               LISTEN
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN
tcp        0      0 127.0.0.1:631           0.0.0.0:*               LISTEN
tcp        0      0 127.0.0.1:25            0.0.0.0:*               LISTEN
tcp6       0      0 127.0.0.1:8005          :::*                    LISTEN
tcp6       0      0 :::8009                 :::*                    LISTEN
tcp6       0      0 :::139                  :::*                    LISTEN
tcp6       0      0 :::8080                 :::*                    LISTEN
tcp6       0      0 :::22                   :::*                    LISTEN
tcp6       0      0 ::1:631                 :::*                    LISTEN
tcp6       0      0 :::445                  :::*                    LISTEN




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