WCS Global Telnet/SSH Parameter Change

Question

I have almost 700 Wireless LAN Controllers in my environment, and due to security compliance, I need to update the local administrator account for each one of them. My concern is that when I push a template with a new admin password, WCS will lose Telnet/SSH access to all 700 controllers, because the Telnet/SSH Parameters for each controller are currently set as the local administrator.
Is it possible to update the Telnet/SSH parameters for every WLC? I know it is possible to update them one at a time through Configure > Controller and updating it via the Properties tab, but there doesn't seem to be a way to push a template to WCS itself which would update the telnet/ssh access globally.
The closest thing I can think of is re-adding every single controller via CSV file and changing the Telnet/SSH Parameters that way, but I would need to remove every controller from WCS first, and that's not really an acceptable solution.

Answer 1

I  don't know is it right answer for u or not:)
1. Choose Configure > Controller Template Launch Pad.
2. Click Local Management Users or choose Management > Local Management Users from the left sidebar menu. 
Here create a new template with new username and password (with RW or RO) and apply to all controllers and if you want then delete old user from wlc.
Regards
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