Category Archives: Ubuntu

Ubuntu 14.04 Active Directory Authentication

5.00 avg. rating (95% score) - 1 vote

In a post a couple of years ago I gave an example on how to configure an Ubuntu 12.04 server to authenticate to Active Directory. Things used to be hard back then. Now we have the realmd realm enrollment manager to do the hard work of joining the host to an Active Directory domain, and the System Security Services Daemon or SSSD to do the actual authentication and authorization work whenever it is needed. And things are much easier to configure and get running. Continue reading Ubuntu 14.04 Active Directory Authentication

OpenStreetMap Nominatim Server for Geocoding

5.00 avg. rating (99% score) - 9 votes

Here’s how to install the OpenStreetMap Nominatim service on your own server. It can be used to geocode and reverse geocode addresses and map coordinates. You will also get a web interface which loads map tiles from openstreetmap.org while doing geocoding requests using your own server. Continue reading OpenStreetMap Nominatim Server for Geocoding

How to install the latest node.js on Ubuntu

0.00 avg. rating (0% score) - 0 votes

How to install the latest node.js on Ubuntu?

 

Linux IPv6 Router: RADVD + DHCPv6

3.25 avg. rating (70% score) - 4 votes

Unlike IPv4, which uses DHCP for configuration, IPv6 uses the Neighbor Discovery Protocol to configure addresses and gateways. Unfortunately, originally the protocol had no means of providing addresses of DNS servers to clients, making it necessary to use  DHCPv6 for that purpose. Modern Linux and Mac OS X machines are able to use the IPv6 Router Advertisement Options for DNS Configuration (RFC 6106), but to my knowledge, Windows clients are not able at the moment. Here’s how to configure a Linux router using radvd and the ISC DHCP daemon. Continue reading Linux IPv6 Router: RADVD + DHCPv6

Init Script for Daemonizing Non-Forking Processes

5.00 avg. rating (95% score) - 1 vote

Sometimes you have an executable which does not fork to the background, but you need to control it with init scripts, so that it does indeed run in the background. Here’s a pretty generic init script for that. It allows you to configure these:

Continue reading Init Script for Daemonizing Non-Forking Processes

HP ProLiant Management Component Pack on Ubuntu

0.00 avg. rating (0% score) - 0 votes

HP seems to have set up a package repository for Ubuntu 12.04, which is an improvement since I last checked a few years ago. To use the repo, add the following line to /etc/apt/sources.list:

Run “sudo apt-get update”.

You can install a number of software packages from the repository:

  • hpsmh: HP System Management Homepage
  • hp-smh-template: HP System Management Homepage Templates
  • cpqacuxe: HP Array Configuration Utility, web-based
  • hp-snmp-agents: Insight Management SNMP Agents for HP ProLiant Systems
  • hponcfg: RILOE II/iLO online configuration utility
  • hp-health: HP System Health Application and Command line Utility Package
  • hpacucli: HP Command Line Array Configuration Utility
  • ams: Agentless Monitoring Service for HP ProLiant Gen8 Systems Continue reading HP ProLiant Management Component Pack on Ubuntu

HP iLO2 Virtual Serial Console on Ubuntu

5.00 avg. rating (97% score) - 2 votes

To get a virtual serial console, you need to enable the iLO virtual serial port. I had mine set up like this:

  • iLO 2 Virtual Serial Port: COM2 0x2F8 IRQ 3

I also enabled ssh access in the iLO web interface. This way I can ssh into the iLO and see all BIOS messages using the “vsp” command. I can even go to the BIOS setup (RBSU) by pressing “ESC-9”.

To be able to control GRUB via the virtual serial port, it has to be configured. I changed the following lines in /etc/default/grub: Continue reading HP iLO2 Virtual Serial Console on Ubuntu

Upgrading HP Proliant iLO2 Firmware with Ubuntu Server

4.20 avg. rating (85% score) - 5 votes

I downloaded the firmware from HP site. It was named CP019022.scexe. I tried uploading it in the iLO2 web interface, but it was rejected. Next, I copied it to the server, gave it execute permissions and ran it:

Not working. This is a fresh installation of Ubuntu Server 12.04.2 LTS x86_64. So I had to start looking closer. The file is a bash script but the hashbang is #!/bin/sh, which puts bash into old Bourne shell mode. No pushd/popd there. Continue reading Upgrading HP Proliant iLO2 Firmware with Ubuntu Server

Ubuntu 12.04 Active Directory Authentication

4.20 avg. rating (85% score) - 5 votes

Update 2015-06-16: Ubuntu 14.04 Active Directory Authentication

Authenticating Linux users against Active Directory has traditionally been hard. There’s a multitude of HOWTOs on how to do it, and every one of them seems to do it a bit differently. This is because environments and goals vary, and there are many ways to achieve a particular goal. I will add my version to the mix. This one fetches users and groups from Active Directory LDAP using a machine account added using the Samba tools, and authenticates users to the Active Directory Key Distribution Center using Kerberos. Continue reading Ubuntu 12.04 Active Directory Authentication