Forcing a Ping

If the nisping -u command reveals that a replica has not been properly updated, you can use the nisping command to force the master server to ping all the replicas in a domain, or one replica in particular.

To ping all the replicas, use the nisping command without options:

/usr/lib/nis/nisping

This forces the master server to ping all the replicas in the domain. Here is an example that pings all the replicas of the local doc.com. domain:

rootmaster# /usr/lib/nis/nisping
Pinging replicas serving directory doc.com.:
Master server is rootmaster.doc.com.
 Last update occurred at Wed Nov 25 10:53:37 1992
Replica server is rootreplica1.doc.com.
 Last update seen was Wed Nov 18 11:24:32 1992
 Pinging ... rootreplica1.doc.com.

To ping all the replicas in a domain other than the local domain, append a domain name:

/usr/lib/nis/nisping domainname

You can also ping all the tables in all the directories on a single specified host. To ping all the tables in all the directories of a particular host, us the -a option:

/usr/lib/nis/nisping -a hostname