Appliance IP addresses are static by default. Hence, changing the IP address of the appliance is a 4-steps process.

Change the IP of a network device by editing the network configuration file. (E.g. for network card eth0)

vi /etc/sysconfig/network-scripts/ifcfg-eth0

Change the values of IPADDR and NETMASK fields

ifcfg-eth0

#My IP description
# IPv-4

DEVICE="eth0"
NM_CONTROLLED="yes"
ONBOOT=yes
HWADDR=00:ee:dd:cc:bb:aa
TYPE=Ethernet
BOOTPROTO=static
NAME="System eth0"
UUID=aaaabbbb-7777-8888-9999-aaaabbbbcccc
IPADDR= 192.168.0.100
NETMASK=255.255.255.0

Use the command - ip addr show to see a device's IP address

When the appliance is moved to a different network subnet - Change the Default gateway
```
vi /etc/sysconfig/network
```
Change the value of the GATEWAY field in the file
/etc/sysconfig/network
```
NETWORKING=yes
HOSTNAME=server1.example.com
GATEWAY=192.168.0.1
[...]
```
Use the command - ip route show to see a device's IP address
Change DNS name (Optional step) - DNS can be added or changed in the file /etc/resolv.conf
```
vi /etc/resolv.conf
```
Change or add Domain Name Servers if required.
resolv.conf
```
[...]
nameserver	192.168.1.1
nameserver	192.168.1.2
[...]
```
Restart the network service
restart network services
```
service network restart
```
Edit the /etc/hosts file
Change all the entries referring to the old IP address to use the new IP address. For example:
restart network services
```
192.168.65.175     montier-management
192.168.65.175     montier-syslog
192.168.65.175     montier-wsm
192.168.65.175     montier-ext-eth
```
No need to change entries using the IP address 127.0.0.1
Stop and Start all system services.
In the web console navigate to system → nodes and edit the IP address of the agents in your data node raw.
Re-configure syslog for the default domain on each monitored device (the Setup Syslog for device on the Device Management section)

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