Friday 6 March 2009

Solaris Administration tips

System administration can be made simple through some general tricks that are used by experts. Below, I have given some useful tips for easy Solaris system management.

• The run level that the system is running in can be checked with the who –r command.

• You can use the snoop command to snoop an active interface.

• Diskless clients can be managed using smosservice and smdiskless utilities.

• Inorder to create a file system that can be expanded in future into a bigger one you can use newfs –T command. Expansion can be done using the growfs command.

• If you need some information about the CPU use the psrinfo command. And inorder to take the CPU online or offline use psradm command.

• In order to set the default gateway, follow these steps.
Edit /etc/defaultrouter and add the following lines

Default Gateway IP Metric
Example: 1

Use /etc/rc2.d/S69inet stop
/etc/rc2.d/S69inet start to enable the default gateway without rebooting

• If you have a file like this ‘--file1’ entered into one of your directories, then you will sure have problem deleting it. The rm command cannot remove it as usual. Try unlinking the file.

#unlink --file1

If you wish, try these two optioins
#rm -- --file1
#rm ./--file1

• When you have some problem with the system you are managing, make sure you always check the log files first. On Solaris you find the standard logs in /var/log/syslog and /var/adm/messages.

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