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Change Guest OS Version of a VM on VMware ESXi
August 11, 2020 VMware ESXi

Change Guest OS Version of a VM on VMware ESXi

Problem I was getting the below warning message on my ESXi host for a Virtual Machine (VM). The configured guest OS (Red Hat Enterprise Linux 6 (64-bit)) for this virtual machine does not match the guest that is currently running (Red Hat Enterprise Linux 7 (64-bit)). …
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Change the value of maxfiles_lim kernel parameter on HP-UX
August 10, 2020 HP-UX, IBM WebSphere Application Server

Change the value of maxfiles_lim kernel parameter on HP-UX

Problem I have an HP-UX server and IBM WebSphere Application Server is installed on this server. Some applications are running on this application server. One day suddenly one JVM of IBM WebSphere Application Server stopped serving the requests (JVM was running but not processing any request). …
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chroot SFTP User and Bind Mount in Linux
August 9, 2020 Linux

chroot SFTP User and Bind Mount in Linux

Problem I have created a chroot SFTP user with home directory /incoming, Now I have to share the files contained in the folder /home/documents/pdf. Documents in directory /home/documents/pdf are continuously increasing and I have to share these documents with SFTP users in real-time. To share the …
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List of Latest Installed Bundles and Products on HP-UX
August 8, 2020 HP-UX

List of Latest Installed Bundles and Products on HP-UX

Problem If you are working as a System Administrator then you need to keep the records of each and every change in the system. After applying the patches on HP-UX servers, you need to know what bundles and products have been updated on your HP-UX system. …
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How to Crop an Image in macOS with Preview
August 7, 2020 macOS

How to Crop an Image in macOS with Preview

To reduce unnecessary parts of an image or to improve the composition of an image cropping is an important function image editing function. To crop a picture on macOS with the preview tool follow the steps given below. Preview is an in-built tool in macOS to view the …
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Turn Off Password Expiration for a User Account in RHEL
August 6, 2020 Linux

Turn Off Password Expiration for a User Account in RHEL

To ensure the security of the systems we need to apply the password policy for user accounts on a Linux system. If the policy is applied and applicable to all user accounts then users need to change their password periodically as per policy. But in some …
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How to Watch or Monitor Log Files in Real Time on RHEL Systems
August 5, 2020 Linux

How to Watch or Monitor Log Files in Real Time on RHEL Systems

For a system administrator, it is very important to view log files for monitoring systems and troubleshoot issues. There are many ways to see the logs in real-time on a Red Hat Enterprise Linux (RHEL)system. tail command is a most useful solution which helps system admins to output the …
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How to Get the rpm Packages Update History in RHEL
August 4, 2020 Linux

How to Get the rpm Packages Update History in RHEL

Sometimes we need to find out when a package was updated on our Red Hat Enterprise Linux  (RHEL) Server. To find this we can use the rpm command. Get the RPM Packages Update History You can use the following command to check the update history of …
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How to Find Last Patch Date of RHEL Servers
August 3, 2020 Linux

How to Find Last Patch Date of RHEL Servers

To find out the last patch date of a Red Hat Enterprise Linux server you may use the rpm command or see the /var/log/yum.log file. Find Last Patch Date of RHEL Server Login to the server and open the terminal or connect to the server through ssh using …
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How to Find Out RHEL 6 / RHEL 7 Kernel Version
August 2, 2020 Linux

How to Find Out RHEL 6 / RHEL 7 Kernel Version

To find out the Red Hat Enterprise Linux (RHEL) 6 or 7 kernel version, use the uname command to find the information about it. Check RHEL Kernel Version Login to the server and open the terminal or connect to the server through ssh using PuTTY etc. and …
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