Symptom
Nexus switch will prompt for password when clock timezone command is configured. If this is the first time the command is configured, it will also give the standard Linux sudo spiel:
lab-5600(config)# clock timezone EST -5 0
We trust you have received the usual lecture from the local System
Administrator. It usually boils down to these three things:
#1) Respect the privacy of others.
#2) Think before you type.
#3) With great power comes great responsibility.
Password:
At the end of this exchange, it will give a zic error 0x256.
Conditions
Nexus 5600 or 6K on 7.3(0)N1(1)
Workaround
Downgrading the switch to 7.2 code has proven a workaround in some scenarios.
Further Problem Description
lab-5600# conf
Enter configuration commands, one per line. End with CNTL/Z.
lab-5600(config)# clock timezone EST -5 0
Password:
Sorry, try again.
Password:
Sorry, try again.
Password:
Sorry, try again.
sudo: 3 incorrect password attempts
zic error 0x256
lab-5600(config)# clock timezone EST -5 0
Password:
zic error 0x256
lab-5600(config)#