O SO é o Scientific Linux 6.3 (que é similar ao redhat, centos e fedora) e eu instalei o dnsmasq com a seguinte configuração
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
e o nó atual (que executa o dnsmasq) tem esse 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
No entanto, recebo um erro ao tentar iniciar o serviço dnsmasq
[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]
O comando
netstat mostra as seguintes informações
[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
e
[root@localhost mahmood]# netstat -aunp
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
udp 0 0 0.0.0.0:69 0.0.0.0:* 5110/xinetd
udp 0 0 0.0.0.0:34136 0.0.0.0:* 1323/avahi-daemon
udp 0 0 0.0.0.0:38756 0.0.0.0:* 1348/rpc.statd
udp 0 0 0.0.0.0:5353 0.0.0.0:* 1323/avahi-daemon
udp 0 0 0.0.0.0:1003 0.0.0.0:* 1252/rpcbind
udp 0 0 0.0.0.0:111 0.0.0.0:* 1252/rpcbind
udp 0 0 0.0.0.0:631 0.0.0.0:* 1445/cupsd
udp 0 0 0.0.0.0:676 0.0.0.0:* 1348/rpc.statd
udp 0 0 0.0.0.0:68 0.0.0.0:* 5189/dhclient
udp 0 0 :::1003 :::* 1252/rpcbind
udp 0 0 :::111 :::* 1252/rpcbind
udp 0 0 :::43248 :::* 1348/rpc.statd
O que pode causar esse erro e como posso corrigir isso?