Author: Ramdev

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Solaris 11 – How to Manage Software Packages in Solaris 11

Getting Information About Packages  Use the following commands to retrieve information about packages. No special privileges are needed to run any of these commands. pkg list     The pkg list command tells you whether a package is installed in the current image and whether an update is...

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New Learning video posted at unixadminschool.com

Hi, How are you doing? Just a Quick update about the knowledge article  that we posted recently. We always love to listen and curious to learn from your experience, so please share us your  thoughts and experience related to this specific article, from comments section. Video –...

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Solaris 11 – How to manage Solaris Run Level Scripts

  How to Use a Run Control Script to Stop or Start a Legacy Service Become an administrator Stop the system service. # /etc/init.d/filename stop Restart the system service. # /etc/init.d/filename start Verify that the service has been stopped or started. # pgrep -f service Example 1...

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Creating Centralized Crash Analysis Server for Red hat Enterprise Linux Environment

Case Study : In our RedHat Enterprise Linux environment, transferring large vmcore files to external sites for support purpose can be extremely time consuming and/or not realistic.  And  at the same time  it is not feasible  to install the kernel-debuginfo and crash utility packages locally on...

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Solaris 11 – How to Manage System Crash Dumps

How to Display the Current Crash Dump Configuration Become the root role. Display the current crash dump configuration. # dumpadm Dump content: kernel pages Dump device: /dev/dsk/c0t3d0s1 (swap) Savecore directory: /var/crash Savecore enabled: yes Saved compressed: on The preceding example output means: The dump content is...

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Configuring Kdump to troubleshoot kernel crashes, hangs, or reboots in RHEL5/RHEL6/RHEL7

  How Kdump works? Using the kdump service and the kexec command, you can ensure faster boot up and creation of reliable kernel (vmcores) for diagnostic purposes. First of all let us understand these two basic components: • kexec:  The kexec command is a fast boot mechanism...

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