How to fix network subnet mask aka netmask issue on solaris

Here I am explaining what I encounter network issues in my environment about network subnet mask aka netmask. I have faced issue with network subnet mask while reboot the server. Pre-Request: I. Take ifconfig -a and netstat -rn output prior to reboot the server II. Collect Explorer output if you missed to take above outputs This info will help you to refer netmask values. Netmask Quick Reference: table.tableizer-table { border:...

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How to fix a corrupted wtmpx file on solaris

If the wtmpx files is corrupted then we could not able to get login details , like who all are logged in earlier . To fix this issue we need to perform below tasks. Some of the key points to fix this issue 1). This issue one of the audit compliment in enterprise level 2). Lost all the earlier logged in details 3). This will not capture future logging info until unless fix the issue 4). It will...

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OS patching on Solaris with VCS/SVM Environment

Here I am providing step by step patching plan for VCS cluster setup environment. General Note: 1. Download latest patch bundle from oracle site 2. Take full OS backup 3. Take all the configuration screenshot backup as well as explorer (Save it to your Local "Laptop") 4. Check server console access. 5. Check the server's hardware health. 6. Application and Database team contacts details. Pre-Requisite: I. Download patch bundle from...

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Fail-back plan for solaris OS patching with VCS/SVM Environment.

If the patching activity failed due to some unexpected reason (unfortunately ).Then we have to perform below task to bring the server into normal / operational status . If the patching was not success, then reboot the server with secondary disk and roll-back the change. Note : Now we have to consider secondary disk as a primary disk. Boot the server from secondary disk with multiuser mode: OK>boot disk1 Check whether we have any...

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