Symantec Security 5600 Series, Security 5400 Series,Clientless VPN 4400 Series, Administration Manual

Page: 149 / 861

149 Establishing your network
About the security gateway’s implementation of DNS
4
On the Aliases tab, do the following:
■
Type an alias name.
■
Click Add .
5 On the Domains Served tab, to configure the sub-domains for which the name server will provide
service, do the following:
■
In the Domain text box, type the domain name.
■
Click Add .
6 Optionally, on the Description tab, type a more detailed description than what you typed in the
Caption text box.
7 Click OK .
8 Optionally, do one of the following:
■
To save your configuration now and activate later, on the toolbar, click Save .
■
To activate your configuration now, on the toolbar, click Activate .
When prompted to save your changes, click Yes .
Related information
For further information related to this topic, see the following:
■
“DNS Name Server Record Properties—General tab” on page 678
Resolving host name requests for an outside system by creating a DNS
recursion record
By configuring a recursion record, you instruct the security gateway to resolve host name requests
from a specific outside system or network. For security reasons, by default, dnsd does not answer
requests coming from outside interfaces, for domains for which it is not authoritative.
Prerequisites
None.
To resolve host name requests for an outside system by creating a DNS recursion record
1 In the SGMI, in the left pane, under Assets, click Network .
2 In the right pane, on the DNS tab, click New > DNS Recursion Record .
3 In the DNS Recursion Record Properties dialog box, on the General tab, do the following:
4 Optionally, on the Description tab, type a more detailed description than what you typed in the
Caption text box.
5
Click OK .
Enable To enable the DNS recursion record, click Enable .
Accessibility The Public status is displayed.
This field is read-only.
IP address Type the IP address of the external network or host.
Netmask Type the subnet mask.
Caption Type a brief description of the DNS record.