IP number change

[henk_stobbe]

What happens if a node changes IP number? He has to be installed again>

[Radoslaw_Szulgo]

Unfortunately, we do not support that currently. In case that happens, you need to reinstall a node so the new network configuration is applied across all cluster nodes.

[kia_forooghi · Accepted solution]

Here are the instructions to 'fix' a node that lives on a box with a change in IP:

1. Change directory to the directory containing the Dynatrace Managed install (i.e., /opt/dynatrace-managed)
   cd /opt/dynatrace-managed/
2. Run this command to find all files with the 'old' IP address (replace <OLD_IP_ADDRESS> with the old IP address, like 192.168.137.150)
   find . -type f -exec grep -H <OLD_IP_ADDRESS> {} \;
3. You should see an output.
4. Run this command to replace the old IP with the new (make sure this time it's STATIC) IP address:
   find ./ -type f -exec sed -i 's/<OLD_IP_ADDRESS>/<NEW_IP_ADDRESS>/' {} \;
5. For example, if the intentions is to change the node's IP from 192.168.137.150 to 192.168.1.127, the command would look like this:
   find ./ -type f -exec sed -i s/192.168.137.150/192.168.1.127/' {} \;
6. Once the command is done executing, verify it was successful by using the original search command with the new IP:
   find . -type f -exec -H <NEW_IP_ADDRESS> {} \;
7. Again, replacing <NEW_IP_ADDRESS> with your new IP, e.g., 192.168.1.127
8. Start the node using the /opt/dynatrace-managed/launcher/dynatrace.sh script

[Radoslaw_Szulgo]

Have you verified it works? There might be also some database changes required.

[ernesto_rueda]

Hello @Radoslaw S. and @Kia F.

I've just did this, and it worked.

Do you think there could be any repercussion?

Best regards.

[amr_fahmy]

It is worked with me as well.