Operation Manual

issues,userswould not even be able to log in. Machinesin the network
managed by a broken name serverwould not be able to “see”each other
and communicate.
NTP (Time Service)
A malfunctioningor completelybroken NTP servicecould affect Kerberos
authenticationand X server functionality.
NFS (File Service)
If any application needs data stored in an NFS mounted directory,it will
not be able to startor functionproperly if this servicewas down or miscon-
figured. In the worst case scenario,a user's personal desktopconfiguration
would not come up if their home directorycontainingthe
.gconf
or
.kde
subdirectoriescould not be found due to a faulty NFS server.
Samba (File Service)
If any applicationneedsdata stored in a directoryon a faulty Samba
server,it will not be able to start or function properly.
NIS (User Management)
If your openSUSEsystemrelies on a faulty NIS serverto provide the user
data, userswill not be able to log in to this machine.
LDAP (User Management)
If your openSUSEsystemrelies on a faulty LDAP serverto provide the user
data, userswill not be able to log in to this machine.
Kerberos (Authentication)
Authenticationwill not work and login to any machine fails.
CUPS (Network Printing)
Users cannot print.
4 Checkwhetherthe networkserversare running and whetheryour network
setup allows you to establisha connection:
IMPORTANT
The debuggingprocedure describedbelow only applies to a simple network
server/clientsetup that does not involve any internal routing. It assumes
both serverand client are membersof the same subnet without the need
for additional routing.
4a
Use
ping
IP addressor hostname
(replace
hostname
with the host-
name of the server)to checkwhethereach one of them is up and
responding to the network.If this command is successful,it tells you
that the hostyou were lookingfor is up and runningand that the
name service for your networkis configured correctly.
Help and Troubleshooting 101