AudioCodes mediapack MP-500, User Manual

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SIP User's Manual 108 Document #: LTRT-12801
MP-500 MSBG
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Offline: if you wish to temporarily take your site offline (prevent traffic from
reaching your DDNS domain name), check this box to enable redirection of DNS
requests to an alternative URL, predefined in your DDNS account. The availability
of this feature depends on your account's level and type of service.
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SSL Mode: secured DDNS services are accessed using HTTPS. Upon
connection, the device validates the DDNS server's certificate. Use this entry to
choose the certificate's validation method.
♦ None: do not validate the server's certificate.
♦ Chain: validate the entire certificate chain. If you select this option, the
'Validate Time' drop-down lists appears to validate the certificate's expiration
time. If the certificate has expired, the connection terminates immediately.
♦ Direct: ensures that the server's certificate is directly signed by the root
certificate. If selected, the 'Validate Time' drop-down lists appears for
validation of the certificate's expiration time, as described above.
3.4.3.6.2 Configuring a DNS Server
Domain Name System (DNS) provides a service that translates domain names into IP
addresses and vice versa. The device's DNS server is an auto-learning DNS, which means
that when a new computer is connected to the network the DNS server learns its name and
automatically adds it to the DNS table. Other network users may immediately communicate
with this computer using either its name or its IP address. In addition, your device's DNS:
„ Shares a common database of domain names and IP addresses with the DHCP server
„ Supports multiple subnets within the LAN simultaneously
„ Automatically appends a domain name to unqualified names.
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Allows new domain names to be added to the database (using the Web interface)
„ Permits a computer to have multiple host names
„ Permits a host name to have multiple IPs (needed if a host has multiple network cards)
The DNS server does not require configuration. However, you may wish to view the list of
computers known by the DNS, edit the host name or IP address of a computer on the list,
or manually add a new computer to the list.
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To create a DNS entry:
1. Click the DNS item ( Configuration tab > Data Settings menu > Services submenu >
DNS page item); the following page appears:
Figure 3-91: Configuring a DNS Server