Which of the following statements is correct regarding the root account on a Cisco TelePresence VCS?
A.
The root account should be used for all administrative tasks.
B.
You can log in to the root account only by using a serial connection.
C.
You can log in to the root account only by using SSH or Telnet.
D.
An alarm is displayed if the root account is set to the default password.
E.
The root account password cannot be changed if you have forgotten it.
Explanation:
On a Cisco TelePresence Video Communication System (VCS), an alarm is displayed on the graphical user
interface (GUI) and on the command-line interface (CLI) if the root account is set to the default password. The
password TANDBERG is the default root password.
You can log in to the root account by using a serial connection or by Secure Shell (SSH). You cannot log in to
the root account by using Telnet.
The root account should not be used for all administrative tasks. Instead, you should use an administrative
account, such as the admin account, to perform system configuration and administrative tasks. However, some
tasks can be performed only by the root account. For example, you must use the root account to perform a
factory reset of the VCS by issuing the factory-reset command.
The root account password can be changed if you have forgotten it. To change a forgotten root or admin
password, perform the following steps:
1. Connect to the Cisco TelePresence VCS by using a serial connection.
2. Restart the VCS.
3. Log in with the user name pwrec and a blank password.
4. Select whether you want to change the root or admin account.
5. Change the password when prompted.
The pwrec account is used to reset the password on the root and admin accounts. This account does not have
a password and is active for only one minute after the VCS starts.
You can change a root password by using an SSH connection if you know the current root password. To
change the root password, perform the following steps:
1. Connect to the Cisco VCS by using a serial connection or an SSH connection.
2. Log in as root by using the existing password.
3. Issue the passwd command.
4. Change the password when prompted.Cisco: Cisco TelePresence Video Communication Server, Administrator Guide, Software version: X8.1:
Resetting forgotten passwords (PDF)