Scenario for modifying the network settings of all cluster nodes involves the following steps:
If you are using a load balancer, turn off the load on the nodes in load balancer settings. If you are not using a load balancer, in the web interface of Kaspersky Secure Mail Gateway, disable the reception of messages for all nodes.
After turning off the load, wait until messages from all queues are completely sent on the nodes.
To do so, on the Control node:
You can modify the network settings of the operating system, IP addresses of network adapters, the default gateway address, DNS server addresses.
This step lets you make sure that the new network settings are in fact applied.
This is necessary for correct functioning of Kerberos authentication with the Single Sign-On technology and for interaction with other mail systems.
This step is necessary if the IP address or port of the node was modified.
Log in to the web interface of the Control node using the new address and remove all Secondary nodes from the cluster.
If the cluster contains a single node, skip this step and go to step 6.
Change the addresses of all Secondary nodes, one by one. To do so, on each node:
You can modify the network settings of the operating system, IP addresses of network adapters, the default gateway address, DNS server addresses.
This step lets you make sure that the new network settings are in fact applied.
This is necessary for correct functioning of Kerberos authentication with the Single Sign-On technology and for interaction with other mail systems.
This step is necessary if the IP address or port of the node was modified.
Use the new address of the Control node to log in to the web interface and add Secondary nodes with the new addresses to the cluster.
You can view the statuses of cluster nodes in the web interface of the Control node.
Enable the reception of messages on cluster nodes under their new addresses, one by one. Make sure that traffic is being processed without errors.