I am reading through the notes for the 6.5.2 upgade patch and found this.
does any body know what this really means?
Reverse Host Name Lookup
The domain name system (DNS) reverse host name lookup is used to determine
what host and domain name are indicated by a given IP address. In previous
releases, NetBackup required that reverse host name lookup was working to
determine that a connection to a host came from a recognizable server.
Some administrators cannot or do not want to configure their DNS server for
reverse host name lookup. For these environments, NetBackup now allows the
configuration of Reverse Host Name Lookup as a master server, media server,
or client host property in order to allow, restrict, or prohibit reverse host
name lookup.
