Change the Private IP address#
This guide helps you in changing the private IP address of a Carbonio CE infrastructure.
Suppose you are in the following scenario.
Current |
New |
|
|---|---|---|
IP Address |
10.0.0.50 |
192.168.10.50 |
Subnet |
10.0.0.1/24 |
192.168.10.1/24 |
You have a Single-Server Carbonio CE with IP address 10.0.0.50 and subnet 10.0.0.1/24. You need to move it to a different IP in a different subnet and assign it the new IP address 192.168.10.50 (subnet 192.168.10.1/24).
Before starting, make sure that all Carbonio CE services are in running state.
When you physically change the IP address you will see that almost all Carbonio CE services are stopped, because they can not bind to the (new) IP address.
To fix the problem, here are the steps to change Carbonio CE configuration, keeping in mind that:
If you want to change IP address, but not the subnet (e.g., the new IP address is 10.0.0.135), you need to only carry out the directions in Section Modify Network Configuration
If you want to change IP Address and the subnet, you need to follow the instructions in both Sections, Modify Network Configuration and Modify MTA Configuration
In all cases, execute also the tasks listed in Section Modify Carbonio VideoServer Configuration.
Modify Network Configuration#
The first step is to edit, as the root user, the
/etc/hosts file and replace the old IP with the new IP.
OLD IP
10.0.0.50 crb-01.example.com crb-01
NEW IP
192.168.10.50 crb-01.example.com crb-01
Next, restart all Carbonio CE services.
As the zextras user, execute
zextras$ zmcontrol restart
As the root user, execute
systemctl restart carbonio.target
As the zextras user, execute
zextras$ zmcontrol restart
As the root user, execute
systemctl restart carbonio.target
After the command completes, you will notice that all services but
service-discover (Carbonio Mesh) are running. This is because you need to
manually edit its configuration file,
/etc/zextras/service-discover/config.json.
As the zextras user, replace in this file the bind_addr, so
that the file contains the new IP:
"bind_addr": "192.168.10.50"
Restart the service-discover service:
systemctl restart service-discover.service
Modify MTA Configuration#
In case of a subnet change, it is necessary to regenerate the MTA
configuration as well. As the zextras user, verify that the
networks on which the MTA operates include the old one (10.0.0.50),
for example:
zextras$ postconf mynetworks
mynetworks = 127.0.0.0/8 [::1]/128 10.0.0.50/24
You need to modify that configuration to include the new subnet (192.168.10.1/24) using the command
zextras$ carbonio prov ms crb-01.example.com zimbraMtaMyNetworks \
'127.0.0.0/8 [::1]/128 192.168.10.1/24'
Reload the MTA service
zextras$ postfix reload
Finally, Restart Carbonio CE
As the zextras user, execute
zextras$ zmcontrol restart
As the root user, execute
systemctl restart carbonio.target
As the zextras user, execute
zextras$ zmcontrol restart
As the root user, execute
systemctl restart carbonio.target
Modify Carbonio VideoServer Configuration#
Edit file /etc/janus/janus.jcfg, search the line with the
variable nat_1_1_mapping and replace the value with the new one
(192.168.10.50).
nat_1_1_mapping = 192.168.10.50
Note
In a real-world deployment, the value of nat_1_1_mapping is
typically a public IP address (used for NAT), rather than a
private one as shown in this example.