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d If the name service and network hardware are properly configured and
running, but some external network connections still get long time-outs or
fail entirely, use traceroute fully_qualified_domain_name
(executed as root) to track the network route these requests are taking.
This command lists any gateway (hop) a request from your machine passes
on its way to its destination. It lists the response time of each hop and
whether this hop is reachable at all. Use a combination of traceroute and
ping to track down the culprit and let the administrators know.
Once you have identified the cause of your network trouble, you can resolve it yourself
(if the problem is located on your machine) or let the system administrators of your
network know about your findings so they can reconfigure the services or repair the
necessary systems.
52.6 Data Problems
Data problems are when the machine might or might not boot properly but, in either
case, it is clear that there is data corruption on the system and that the system needs to
be recovered. These situations call for a backup of your critical data, enabling you to
recover a system state from before your system failed. SUSE Linux Enterprise offers
dedicated YaST modules for system backup and restoration as well as a rescue system
that can be used to recover a corrupted system from the outside.
52.6.1 Backing Up Critical Data
System backups can be easily managed using the YaST System Backup module:
1 As root, start YaST and select System → System Backup.
2 Create a backup profile holding all details needed for the backup, filename of
the archive file, scope, and type of the backup:
a Select Profile Management → Add.
b Enter a name for the archive.
Common Problems and Their Solutions
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Table of Contents
Troubleshooting
