Notes to Those Who Also Administer DNS Manually

If you edit the DNS files manually as well as using the Netra DNS Server configuration component, the following information explains what changes Netra makes. You do not have to read this section if you always use Netra to configure DNS.

• The "Modify the DNS Server Configuration" form edits the "local" file (the file with the reverse lookup for the local machine) and depending on the type of DNS server, either the "cache" file or the "root" file. If you change the name of the domain in which the server resides or the DNS administrator, all the primary resource files are rewritten to create a new SOA record and to update the name server record.

• If you modify a primary domain, the corresponding resource file and the entry in the named boot file are rewritten.

• If you modify a primary domain, only the entry in the named boot file is rewritten.

• When recreating resource files, Netra does not change the values in the SOA (other than the revision number). Resource Records of other types than those that can be entered on the forms are left intact. TTLs from individual resource records that are edited by Netra are removed.