Tag: sysadmin

OpenStack: Recover Galera Cluster

OpenStack MySQL (MariaDB Galera Cluster) Recovery Problem: Your MySQL Secondary Database will not start because of disk space, InnoDB problems, etc. This hit me when the Keystone token cleanup got fouled up and I ended up with 900K expired token

Posted in OpenStack, SysAdmin, Teknocratica Tagged with: , ,

OpenStack One-Liners

Hi All. Here are some interesting one-liners I’ve used. Hope they help! And by “one-liner”, of course, I mean “a bunch of commands all typed on one line” ๐Ÿ™‚ All one-liners assume you have sourced in your RC file so

Posted in OpenStack, Teknocratica Tagged with: , , ,

OpenStack Tenants and Nagios Integration Script

Hi All! A detailed article to integrate OpenStack tenants with Nagios! While my promised articles on implementing High Availability within OpenStack (which I’ve done now for Icehouse and Kilo) are still just in my brain, here’s something else to keep

Posted in OpenStack, Teknocratica Tagged with: , , , ,

CentOS Wireless: Fix when it breaks!

Hi All – if you have ditched NetworkManager (as I have) and you are still running into wireless LAN access problems…check out this script!

Posted in Network, SysAdmin, Teknocratica Tagged with: , , , ,

Lync Server 2013: Front-end Fails to Start

Received message “Server startup delayed … fabric pool manager has not finished initial placement of users?” Read our solution!

Posted in SysAdmin, Teknocratica, Windows Server Tagged with: ,

Setup OpenLDAP on CentOS 6.x

Hi All – I had to setup another LDAP server today and it was just barely painful enough to warrant a writeup ๐Ÿ™‚ Read more for my walkthrough!

Posted in SysAdmin, Teknocratica Tagged with: , ,

Backup a Dell 2824 Switch from Command Line

Hi All – ever need to backup your Dell 2824 Managed Switch? If so…you know that the only way to do this is by the Web UI. Which isn’t very helpful if you want to keep your switch configuration backed

Posted in SysAdmin, Teknocratica Tagged with: , ,

PowerShell: Get *All* Domain User’s Group Memberships

Hi All – Need to get all of a user’s group memberships – both domain and local? Do you need indirect memberships also? Then read on!

Posted in Teknocratica, Windows Server Tagged with: , ,

Backport Websockets to Apache 2.2 (x86!)

Hello all – today’s post is on backporting Websockets to an ancient PE2650 running CentOS 6.6. Yup…i686 in all its glory. Read on for our solution!

Posted in Apache, Teknocratica Tagged with: , ,

OpenStack: List State of All VMs

Hi All! Today’s post is a quick script to show how you can get all your OpenStack VMs and their state in a single command. Check it out!

Posted in OpenStack, Teknocratica Tagged with: , , ,