Cisco Cisco TelePresence Video Communication Server Expressway
DNS servers
The DNS server addresses are the IP addresses of up to 5 domain name servers to use when resolving
domain names. You must specify at least one default DNS server to be queried for address resolution if you
want to either:
domain names. You must specify at least one default DNS server to be queried for address resolution if you
want to either:
n
use FQDNs (Fully Qualified Domain Names) instead of IP addresses when specifying external addresses
(for example for LDAP and NTP servers, neighbor zones and peers)
(for example for LDAP and NTP servers, neighbor zones and peers)
n
use features such as URI dialing or ENUM dialing
The VCS only queries one server at a time; if that server is not available the VCS will try another server from
the list.
the list.
In the example deployment 2 DNS servers are configured for each VCS, which provides a level of DNS
server redundancy. The VCS Control is configured with DNS servers which are located on the internal
network. The VCS Expressway is configured with DNS servers which are publicly routable.
server redundancy. The VCS Control is configured with DNS servers which are located on the internal
network. The VCS Expressway is configured with DNS servers which are publicly routable.
To configure the
Default DNS server
addresses:
1. Go to
System > DNS
.
2. Configure the DNS server Address fields as follows:
VCS Control
VCS Expressway
Address 1
Enter 10.0.0.11
Enter 194.72.6.57
Address 2
Enter 10.0.0.12
Enter 194.73.82.242
3. Click Save.
VCS Control has a Fully Qualified Domain Name of vcsc.internal-domain.net
Cisco TelePresence Video Communication Server Basic Configuration (Control with Expressway) Deploy-
ment Guide (X8.2)
ment Guide (X8.2)
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VCS system configuration