Configuration guides for IT Administrators
Ubuntu
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Manage User Accounts and Privileges in Ubuntu
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Read More →: Manage User Accounts and Privileges in Ubuntu1. List all users in Ubuntu cut -d: -f1 /etc/passwd Explanation: cut : command-line utility that extracts sections from lines of a file or input -d: : delimiter as a colon (:) to separate fields -f1 : tells cut to extract field 1, which is username /etc/passwd : contains all user account information 2. Create new…
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apt-get update failed because certificate verification
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Read More →: apt-get update failed because certificate verificationUbuntu apt-get update shows Certificate verification failed: The certificate is NOT trusted. The certificate chain uses expired certificate. Could not handshake:
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Update Date, Time, Timezone on Ubuntu
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Read More →: Update Date, Time, Timezone on UbuntuUse timedatectl command to view and change time, date and timezone in Ubuntu
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Expand Ubuntu disk after adding additional disk space in Hyper-V
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Read More →: Expand Ubuntu disk after adding additional disk space in Hyper-VQuick and easy steps to expand Ubuntu disk space
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Install MongoDB Community Edition
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Read More →: Install MongoDB Community Edition5 Steps to install MongoDB in Ubuntu
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Fix print_req_error: I/O error, dev fd0, sector 0
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Read More →: Fix print_req_error: I/O error, dev fd0, sector 0In fresh Ubuntu installation, fix print_req_error: I/O error, dev fd0, sector 0
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Ubuntu installation loop after mentioning static IP address
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Read More →: Ubuntu installation loop after mentioning static IP addressUbuntu installation process is continuously returning back to the beginning when you setup static IP address in the network configuration. In order to overcome this problem, do not mention Search domains in the network configuration.
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Fix orange state of Ubuntu virtual machine in VirtualBox
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Read More →: Fix orange state of Ubuntu virtual machine in VirtualBoxWhen you experience problem with Ubuntu virtual machine stuck on Orange screen without desktop access, you can overcome it by increasing video memory of VM.
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Disable Secure Boot in Ubuntu
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Read More →: Disable Secure Boot in UbuntuDisable Secure Boot in Ubuntu Virtual Machines without rebuilding entire server.
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