Virtual TapeServer 6.04.04 for NonStop Servers Operations and Administration Guide

Managing the VTS Server | 101
Restricting access to bill
The bill account has the same access rights as the root account. You can restrict access of the
bill account, thereby forcing users to use vtsa and denying access to functions that may
present security vulnerabilities.
To restrict access to bill
1. Log in to the VTS server as root.
2. Edit the /etc/ssh/sshd_config file to add this line:
DenyUsers bill
Or, if AutoCopy or Instant DR is configured in your environment, add this line:
AllowUsers vtsa bill@source_svr
where source_svr is the IP address or hostname of the VTS server where the AutoCopy or
Instant DR operation is originating.
3. Restart the SSH service by entering this command:
service sshd restart
Maintaining the file system
The file system of the VTS server requires maintenance for optimal performance.
Performing a file system check
The fsck utility is an operating system utility that checks the consistency of the VTS file
system. It is highly recommended that you run fsck on all disk subsystems, to maintain disk
consistency and health. fsck may run automatically after a reboot and can take several hours
to complete. VTS enables you to control when fsck runs; you can postpone fsck once, thereby
allowing you to schedule downtime to run fsck.
To review fsck status
1. Click Supervisor Functions on the navigation pane of the VTS web interface.
2. Click Filesystem Check Status. The FSCK Information page is displayed:
For more information, see the online help. To view help, click the Help button at the top of
the page.