Category: Blog for Unix Admin

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Solaris Troubleshooting : Restore SDS Root mirror from the backup

NOTE: In order to restore the machine exactly the way it was, it is necessary to have a record of the locations of the state databases, and also the configuration of the metadevices. These are *not* held in user-readable form on the root filesystem, so it...

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Solaris Troubleshooting : Sendmail Troubleshooting – 2

This post  is continuation to the Sendmail Troubleshooting – 1 // ]]> Step 5. Verify the sendmail configuration. In Solaris 9 and above, sendmail uses a 2 queue paradigm structure (/var/spool/mqueue and /var/spool/clientmqueue). This is to make sendmail more secure by not giving out setuid for...

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Solaris Troubleshooting : Setting boot-device with luxadm command from booted OS.

This procedure demonstrates how to easily use the “luxadm” command to set the “boot-device” Open Boot Prom (OBP) parameter from a system booted from cdrom or in single user mode. The command will change the “boot-device” setting at the OS level and at the same time, change the “boot-device”...

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Solaris Troubleshooting : Using Truss to Identify the Signals sending to a Process

One of the Sample Issue: Customer frequently sees in /var/adm/messages syslogd: going down on signal 15 which indicates that the system rebooted from a normal shutdown or init 6, yet no reboot has actually occurred and uptime indicates that no reboot occurred. If you stop the...

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