HP-UX System Administrator's Guide: Configuration Management

Recovering Network Services after a Power Failure
This section describes how to troubleshoot problems you and your system users are
likely to encounter when rebooting after a general power failure or outage. The examples
assume you are using DNS (Domain Name Service).
Symptoms and Keywords
RPC_PROG_NOT_REGISTERED
name_server
rcmd: hostname: Unknown host
rcmd:hostname: Not in database
rcmd:hostname: Access denied
What To Do
A. When the Domain Name Server Goes Down
If a system powers up before the Domain Name Server does, the system will not
find the name server and, when users tries to reach another system, they will get
the message:
rcmd: hostname: Unknown host
The simplest solution is to reboot the system after the name server has been
rebooted.
B. When a Client Can’t Import Directories from a Server
Do the troubleshooting checks described under “Troubleshooting NFS” (page 84).
If these fail, and the client is getting messages such as:
rcmd: hostname: Not in database
rcmd: hostname: Access denied
then do the following procedure:
1. Log in to the server as superuser.
2. Start HP SMH, as described in “Starting Text-Based HP SMH” (page 30).
3. Enable or restart the NFS server, as described in “Enabling and Disabling the
NFS Server and Client” (page 76).
4. Exit HP SMH.
5. Log in to the client as superuser.
6. Start HP SMH, as described in “Starting Text-Based HP SMH” (page 30).
7. Enable the NFS client, as described in “Enabling and Disabling the NFS Server
and Client” (page 76).
8. Exit HP SMH.
86 Configuring Networking