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      <p>Hello,<br>
        The OS is Scientific Linux 6.3 (which is similar to redhat,
        centos and fedora) and I have installed dnsmasq with the
        following configuration</p>
      <pre><code>    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
</code></pre>
      <p>and current node (which runs dnsmasq) has this ip</p>
      <pre><code>    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
</code></pre>
      <p>However, I get error when trying to start the dnsmasq service</p>
      <pre><code>    [root@localhost mahmood]# /etc/init.d/dnsmasq status
    dnsmasq is stopped
    [root@localhost mahmood]# /etc/init.d/dnsmasq start
    Starting dnsmasq: 
    dnsmasq: failed to create listening socket: Address already in use
                                                       [FAILED]
</code></pre>
      <p>netstat command shows the following information</p>
      <pre><code>    [root@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      
</code></pre>
      <p>What missconfiguration causes such error and how can I fix
        that?</p>
      <br>
      <br>
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    <div class="moz-signature">-- <br>
      Regards,<br>
      Mahmood</div>
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