[Dnsmasq-discuss] dnsmasq: failed to create listening socket: Address already in use

[Mahmood Naderan]

Hello,
The OS is Scientific Linux 6.3 (which is similar to redhat, centos and 
fedora) and I have installed dnsmasq with the following configuration

|     interface=eth1
     domain=hpclab
     expand-hosts
     dhcp-range=10.0.2.51,10.0.2.100,static
     dhcp-option=42,0.0.0.0
     dhcp-boot=pxelinux.0
     enable-tftp
     tftp-root=/var/lib/tftpboot
     dhcp-host=08:00:27:69:73:7A,ws04,10.0.2.51
|

and current node (which runs dnsmasq) has this ip

|     eth1  Link encap:Ethernet  HWaddr 08:00:27:A9:20:C0
           inet addr:10.0.2.15  Bcast:10.0.2.255  Mask:255.255.255.0
           inet6 addr: fe80::a00:27ff:fea9:20c0/64 Scope:Link
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
|

However, I get error when trying to start the dnsmasq service

|     [root at localhost mahmood]# /etc/init.d/dnsmasq status
     dnsmasq is stopped
     [root at localhost mahmood]# /etc/init.d/dnsmasq start
     Starting dnsmasq:
     dnsmasq: failed to create listening socket: Address already in use
                                                        [FAILED]
|

netstat command shows the following information

|     [root at localhost mahmood]# netstat -anlp | grep -w LISTEN
     tcp        0      0 0.0.0.0:111                 0.0.0.0:*                   LISTEN      1252/rpcbind
     tcp        0      0 127.0.0.1:631               0.0.0.0:*                   LISTEN      1445/cupsd
     tcp        0      0 127.0.0.1:25                0.0.0.0:*                   LISTEN      1685/master
     tcp        0      0 0.0.0.0:46556               0.0.0.0:*                   LISTEN      1348/rpc.statd
     tcp        0      0 :::111                      :::*                        LISTEN      1252/rpcbind
     tcp        0      0 :::80                       :::*                        LISTEN      4884/httpd
     tcp        0      0 ::1:631                     :::*                        LISTEN      1445/cupsd
     tcp        0      0 :::51096                    :::*                        LISTEN      1348/rpc.statd
|

What missconfiguration causes such error and how can I fix that?



-- 
Regards,
Mahmood
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