Cisco Cisco Web Security Appliance S170 사용자 가이드
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Cisco IronPort AsyncOS 7.7 for Web User Guide
Chapter 25 Configuring Network Settings
Configuring DNS Server(s)
Editing DNS Settings
Step 1
Navigate to the Network > DNS page.
Step 2
Click Edit Settings.
Step 3
Select to use the Internet’s root DNS servers or your own internal DNS server or the Internet’s root DNS
servers and specify authoritative DNS servers.
servers and specify authoritative DNS servers.
Step 4
If you use your own DNS server(s), or specify authoritative DNS servers, enter the server ID, specify a
priority, and use the Add Row key to repeat as necessary for each server.
priority, and use the Add Row key to repeat as necessary for each server.
Step 5
Choose the routing table associated with an appliance network interface type, either Management or
Data, to use for DNS traffic.
Data, to use for DNS traffic.
Step 6
Enter the number of seconds to wait before cancelling a reverse DNS lookup.
Step 7
In the Domain Search List, enter zero or more domain suffixes to append to hostnames before AsyncOS
does a DNS match.
does a DNS match.
The DNS domain search list is used when a request does not resolve with the DNS server. The domains
specified are each attempted in turn to see if a DNS match for the hostname plus domain can be found.
The list is searched in order (from left to right) until a match is found.
specified are each attempted in turn to see if a DNS match for the hostname plus domain can be found.
The list is searched in order (from left to right) until a match is found.
Step 8
Submit and commit to save the changes.