### Solaris versions 2.0 through 2.3

The `gethostbyname()` routine is broken; it does not return a fully qualified domain name, even if you are using the Domain Name Service routines. Since Kerberos V5 uses the fully qualified domain name as the second component of a service principal (i.e, `host/tsx-11.mit.edu@ATHENA.MIT.EDU`), this causes problems for servers who try to figure out their own fully qualified domain name.

Workarounds:

1. Supply your own resolver library. (such as bind-4.9.3pl1 available from ftp.vix.com)
2. Upgrade to Solaris 2.4
3. Make sure your /etc/nsswitch.conf has `files' before `dns' like:

                 hosts:      files dns

   and then in /etc/hosts, make sure there is a line with your workstation's IP address and hostname, with the fully qualified domain name first. Example:

                 18.172.1.4      dcl.mit.edu dcl

   Note that making this change may cause other programs in your environment to break or behave differently.