Chapter 3
3 - 10
When the Setup utility prompts you to enter an IP address for
administration, you can type a single IP address or a list of IP addresses,
from which the 3-DNS Controller will accept administrative connections
(either remote shell connections, or connections to the web server on the
3-DNS Controller). To specify a range of IP addresses, you can use the
asterisk (*) as a wildcard character in the IP addresses.
The following example allows remote administration from all hosts on the
192.168.2.0/24 network:
192.168.2.*
Note
For administration purposes, you can connect to the 3-DNS floating self IP
address, which always connects you to the active unit in an active/standby
redundant system. To connect to a specific unit, connect directly to the IP
address of that 3-DNS unit.
Setting support access
Next, the Setup utility prompts you to set up a support access account. If you
would like to activate a support access account to allow your vendor access
to the 3-DNS unit, type a password for the support account. Next, select the
access type you want for the support account.
Setting the time zone
Next, you need to specify your time zone. This ensures that the clock for the
3-DNS Controller is set correctly, and that dates and times recorded in log
files correspond to the time zone of the system administrator. Scroll through
the list to find the time zone at your location. Note that one option may
appear with multiple names. Select the time zone you want to use, and press
the Enter key to continue.
Configuring NTP support
You can synchronize the time on the unit to a public time server by using
Network Time Protocol (NTP). NTP is built on top of TCP/IP and assures
accurate, local timekeeping with reference to clocks located on the Internet.
This protocol is capable of synchronizing distributed clocks, within
milliseconds, over long periods of time. If you choose to enable NTP, make
sure UDP port 123 is open in both directions when the unit is behind a
firewall.