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Best practices when upgrading Web Gateway appliances that are in Central Management
Technical Articles ID:   KB76905
Last Modified:  9/3/2019
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Environment

McAfee Web Gateway (MWG)

Summary

If you have more than one appliance and use Central Management, McAfee recommends that you remove all appliances from the Central Management cluster before you upgrade. You must remove each appliance separately and then update each appliance individually. After you have successfully updated all your appliances, add them back to the Central Management cluster.

NOTE: All appliances in a Central Management cluster need to have the same MWG software version.

Although it is not a technical requirement to break the cluster before upgrading, it is a best practice.
 
Best practice upgrade process:
  1. Log on to the Master node interface. 
  2. Create and save your backup file by clicking Troubleshooting, <appliance name>, Backup/Restore.

    NOTE: Because all nodes in Central Management have a copy of each others' configuration, you have to create only one backup.
     
  3. Remove an appliance node from Central Management:
    1. Click the Configuration tab. You see all nodes in Central Management in the tree on the left.
    2. Highlight the node you want to remove from Central Management and click Delete.
       
  4. Log on to the standalone node that you deleted from Central Management in step 3.
  5. Continue with the software upgrade:
    1. Click the Configuration tab.
    2. Highlight the node hostname.
    3. Click Update appliance software.
       
  6. Repeat Steps 3–5 for the remaining nodes.
  7. After you have upgraded all nodes, rejoin nodes to Central Management from the Master node:
    1. Log on to the Master node interface.
    2. Select Configuration, Appliances.
    3. On the appliances toolbar, click Add/Join.
    4. Type the Host name or the IP address of the appliance that you want to add.
    5. From the Network group, select a network group for the new appliance.
    6. Select Add appliance.
    7. Click OK.

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