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Installing And Configuring UDK2018/Clang 7.0 On Fedora 29

This post shows you how to install the UDK2018 snapshot of EDK2 on Fedora 29 and build 64-bit UEFI applications using the Clang 7.0 toolchain.

Configuring a FreeIPA Server For Use In RHCE7 Practice Lab

This post shows you how to configure a FreeIPA server for use in a RHCE7 exam preparation lab environment.

Using the D-Bus Interface to Firewalld

This post describes the D-Bus interface to FirewallD and provides a number of working examples which use dbus-send to retrieve information from FirewallD and change the firewall configuration.

RHEL/CentOS 7: Revert To Old Network Interface Naming Convention

RHEL/CentOS 7 uses SystemD predictable network interface names. This post shows you how to rename a network interfcae to eth0,/em>without modifying the kernel commnad line or any udev rules, and without requiring a sytem reboot.

POSIX Way to Check User Input in Shell Scripts

This post discusses how to validate both localized and non-localized user input in the POSIX shell.