Check that the host entry for the system matches the configured IP address for interface.
hostname , ip address , cat /etc/hosts
EXAMPLE:
[]# ip address
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 08:00:27:5b:be:0e brd ff:ff:ff:ff:ff:ff
inet 192.168.1.42/24 brd 192.168.1.255 scope global noprefixroute dynamic eth0
valid_lft 85004sec preferred_lft 85004sec
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 08:00:27:de:de:d1 brd ff:ff:ff:ff:ff:ff
inet 192.168.56.110/24 brd 192.168.56.255 scope global noprefixroute dynamic eth1
valid_lft 435sec preferred_lft 435sec
[]# cat /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.56.107 qorestor2
192.168.56.102 qorestor1
[]# vi /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.56.110 qorestor2 <-- edit ip address for host
192.168.56.102 qorestor1
[]# cat /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.56.110 qorestor2
192.168.56.102 qorestor1