Cisco Cisco TelePresence Video Communication Server Expressway 관리 매뉴얼

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D14049.08 
November 2010
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CISCO TELEPRESENCE
 VIDEO COMMUNICATION SERVER
ADMINISTRATOR GUIDE
Login accounts
Root account
Root account 
The VCS provides a root account which can be used to log in to 
the VCS operating system. This account has a username of root 
(all lower case) and a default password of TANDBERG (all upper 
case). For security reasons you must change the password as 
soon as possible. A warning is displayed on the web interface 
and the CLI if the root account has the default password set.
!
The root account should not be used in normal operation, 
and in particular system configuration should not be 
conducted using this account. Use the admin account 
instead. 
Changing the root account password
To change the password for the root account:
1. Log in to the VCS as 
root. By default you can only do this 
using a serial connection or SSH.
2. Type 
passwd.
You will be asked for the new password.
3. Enter the new password and when prompted, retype the 
password.
4. Type 
exit to log out of the root account.
Accessing the root account over SSH and Telnet
By default, the root account can be accessed over a serial 
connection or SSH only - access over Telnet is disabled by 
default. You may wish to enable access over Telnet, but for 
security reasons we do not recommend this.
To enable and disable access to the root account using SSH and 
Telnet:
1. Log in to the VCS as 
root.
2. Type one of the following commands:
• 
rootaccess -t on to enable access using Telnet
• 
rootaccess -t off to disable access using Telnet
• 
rootaccess -s on to enable access using SSH
• 
rootaccess -s off to disable access using SSH
3. Type 
exit to log out of the root account.
If you have disabled SSH access while logged in using 
SSH, your current session will remain active until you log 
out, but all future SSH access will be denied.
!
If your VCS is part of a cluster, do not disable root access 
using SSH. The clustering feature depends on SSH 
access.
Resetting passwords
Resetting a forgotten administrator or root password
If you forget the password for the default admin account or any 
other administrator account, log in to the VCS using the account 
of another administrator with read/write access and change the 
password.
However, if you do not have any other administrator accounts 
with read/write access, or have forgotten the passwords for 
them all, you can set a new password for the admin account 
using the following procedure. This can also be used if you have 
forgotten the password for the root account: 
1. Connect a PC to the VCS using the serial cable as per the 
instructions in th
2. Restart the VCS.
3. Log in from the PC with the username pwrec. No password is 
required. 
4. Select the account (root or admin) whose password you wish 
to change.
5. You will be prompted for a new password.
The pwrec account is only active for one minute following 
a restart. After that time you will have to restart the 
system again to change the password.