Universal Forwarder Credentials

[JMonk]

What is the correct way to upgrade the credentials on a universal forwarder. Ours will expire soon, When I run splunk install app -update, getting the following error:
Cannot perform action "POST" without a target name to act on.

[woodcock]

There is nothing in Splunk that would case your Universal Forwarder credentials to expire. Are you talking about your SSL certificate?

[ivanreis]

please try this command to change the local user on universal forwarder for admin user.
linux command : /opt/splunkforwarder/bin/splunk edit user admin -password -auth admin:

windows command : c:\bin\splunk edit admin -password -auth admin:
depends on the number of clients you have to apply this change I recommend to use a script or other tools to deploy new configuration to you environment.

[richgalloway]

What credentials are you trying to change? What is the exact command you're running?