# Manage Domains and DNS Settings

This form allows you to define the Domain Name Service (DNS) that will be associated with the MSL server. This name will be the default domain for the email and web server. You can also use this form to configure other virtual domains in the network.

Caution: Do not change the primary domain name after you have set it up. If you do, you will have to reboot the server and all of the clients, and users may have to manually modify items such as Web browser bookmarks that point to the server.

To define the DNS name for the MSL server:

1. Under Configuration, click Domains

2. Click Modify Corporate DNS settings.

3. Enter the primary and secondary DNS server IP addresses if this server does not have access to the Internet, or if you have special requirements for DNS resolution. Leave these fields blank unless you have a specific reason to configure other DNS servers. Do not enter the address of your ISP's DNS servers because the server is capable of resolving all Internet DNS names without this additional configuration.

4. Click Save.

To configure other virtual domains:

1. Click Add Domain.

2. Enter the Domain Name and a brief description.

3. For the web site, you may choose your primary web site or any i-bay as the content.

4. Select whether this domain is Resolved locally, passed to the Corporate DNS servers, or resolved by the Internet DNS servers. The default will be correct for most networks.

5. Click Add.