Mount USB Flash Drive (CentOS 7)
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View ArticleVMware – Reset the root password for VCSA 6.x
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View ArticleBackup ESXi host configuration
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View ArticlePowerShell – Build Scheduled Tasks
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View ArticleSSH X-Forwarding (a more secure alternative to VNC)
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View ArticleVMware ESX – Recreate a VMX file for a VM
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View ArticlePostfix – SMTP E-Mail Relay for Office 365
Postfix is a flexible mail server that is available on most Linux distribution. Though a full featured mail server, Postfix can also be used as a simple relay host to another mail server, or smart...
View ArticleEnable EPEL Repository (RHEL/CentOS 7.x/6.x/5.x)
EPEL (Extra Packages for Enterprise Linux) is open source and free community based repository project from Fedora team which provides 100% high quality add-on software packages for Linux distribution...
View ArticleConfiguring Let’s Encrypt TLS Certificates
Let’s Encrypt® has revolutionized the way to obtain, install and use TLS/SSL certificates for websites and other services. With its Read More ...
View ArticlePowershell – Force gpupdate on all Domain Computers
Client computers update Group Policies every 90 minutes by default, in a functional and working domain. In this brief article Read More ...
View ArticleLinux – Make immutable a file
The chattr command is used by system administrators to restrict the users from changing a file in a particular way or even the administrator can by mistake delete a critical file because of a mis-typed...
View ArticleCentOS / RHEL 7 – Regenerate UUID for Network Cards (Physical and Virtualized...
Usually, when cloning VMs on virtualized systems (Hyper-V or VMware, for example) an issue could occur related to vNICs: a vNIC could be renamed and so no more the same of the old VMs (obviously). Read...
View ArticleCentOS / RHEL 7 / Debian – Disable IPv6
If network troubleshooting leads you to believe there's an issue with IPv6, you may need to shut down that protocol on your Linux machines. Since some hardware doesn't take advantage of IPv6 (and most...
View ArticleMicrosoft Edge – Open from Run or Command Prompt
As many (almost all) applications available on Microsoft Windows platforms can be called from Run command (as even from Command Prompt and Powershell). Users who have been experiencing issues with the...
View ArticlePowershell – Find computer name and domain
Sometimes it's useful to know the computer name and domain you are working on. The first of the following commands returns the FQDN of the computer on the format whereas the second one returns a list...
View ArticleLinux – scp transfer files (passwordless) between systems
SSH (Secure SHELL) is a network protocol that is used to login into remote servers for execution of commands and programs. It is also used to transfer files from one computer to another computer over...
View ArticleNginx – Password Protect Web Directories
Managers of web projects often need to protect their work one way or another. Often people ask how to password protect their website while it is still in development. On an Apache web server, it's...
View ArticleUbuntu – What is netplan?
Since Ubuntu 18.04 LTS has switched to Netplan for configuring network interfaces. Netplan is based on YAML based configuration system that makes configuration process very simple. Using netplan gives...
View ArticleRaspberry Pi – Updating the device’s firmware and kernel
The rpi-update command should periodically run on a Raspberry Pi device, to keep his firmware, kernel and kernel modules updated, using Raspberry Pi OS. Read More ...
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