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san_239682's avatar
san_239682
Icon for Nimbostratus rankNimbostratus
Mar 03, 2016

resetting lost/forget admin and root password on F5 BIG IP

Can anyone suggest how to reset the forgotten root and admin password on F5 BigIP devices( running on 11.x and 10.x versions)   Do we need need to provide same password for root and admin? How d...
application delivery
BIG-IP
LTM
Hannes_Rapp's avatar
Hannes_Rapp
Icon for Nimbostratus rankNimbostratus
Mar 03, 2016

Perhaps you have another account with full admin rights you can still use? This would suffice to update the root and admin account passwords.

If not, check out section "Resetting a lost or forgotten root password" @ https://support.f5.com/kb/en-us/solutions/public/3000/300/sol3350.html

Once you have the root account access, you can normally set the admin password to anything you want in TMSH (i.e. 

tmsh modify auth user admin password NewPasswoRd
). Only problem is that once you do that, you may have to re-configure the HA cluster. Put your standby appliance to Forced Offline state before you begin to ensure no unintended cluster failovers can occur as the cluster breaks.