Supported CentOS and Red Hat Enterprise Linux virtual machines on Hyper-V


Applies To: Windows Server 2016, Hyper-V Server 2016, Windows Server 2012 R2, Hyper-V Server 2012 R2, Windows Server 2012, Hyper-V Server 2012, Windows Server 2008 R2, Windows 10, Windows 8.1, Windows 8, Windows 7.1, Windows 7

Configuring sudo Elevation for UNIX and Linux Monitoring with System Center 2012 – Operations Manager

The Internet of Things - Open Source Framework

Allseen Alliance - The Internet of Things Framework sponsored by The Linux Foundation

Solid State Drive (SSD) on Linux


That's right, I'm going to migrate my machine into modern times and use a solid state drive (SSD). Why? The drastic performance gain with these devices should, at least in theory, fix the last issue I have with Linux and audio.

Various methods of generating a CSR - Certificate Signing Request

To Generate a Certificate Signing Request for Apache 2.x

  1. Log in to your server's terminal (SSH).
  2. At the prompt, type the following command:

    openssl req -new -newkey rsa:2048 -nodes -keyout yourdomain.key -out yourdomain.csr

    Replace yourdomain with the domain name you're securing. For example, if your domain name is, you would type coolexample.key and coolexample.csr.

VNC Server setup

Setting up a new Java version with the Linux Alternatives system

To install the Oracle Java JRE after the .rpm installation as the default Java on a linux system: <the current example below will install version 6 update 35>

Note: The best command for the Java JDK install is : yum localinstall <package-name-of-jdk>


alternatives --install /usr/bin/java java /usr/java/jre1.6.0_35/bin/java 20000 --slave /usr/bin/keytool keytool /usr/java/jre1.6.0_35/bin/keytool --slave /usr/bin/orbd orbd /usr/java/jre1.6.0_35/bin/orbd




Linux Encrypted Filesystem How-To with dm-crypt

An encrypted filesystem will protect against bare-metal attacks against a hard drive. Anyone getting their hands on the drive would have to use brute force to guess the encryption key, a substantial hindrance to getting at your data.

Linux Active Directory Authentication using Winbind

Tested with Active Directory 2003 and RHEL 6.0

What we want to do :

- authentication against AD using Winbind and Kerberos
- allowing local and remote (SSH) authentication to members of a specific AD group (linuxadmin)
- allowing members of linuxadmin to use sudo
- UID/GID mapping against AD
- user homedir will be created at first log using pam_mkhomedir
- still possible to log in using local accounts, in case AD is unavailable

Check if resolution works :

Samba How-To Notes Chapter 28: PAM distributed authentication Advanced Configuration

Chapter 28: Samba How-to Chapter 28: PAM Distributed Authentication Advanced Configuration  


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