Unless you have a totally fresh install of Ubuntu, you have probably noticed that each time you boot up, the GRUB boot menu lists a bunch of previous Linux kernels which you can boot into. While this can occasionally come in handy – like if you can’t boot into the new kernel after an upgrade – those previous kernels, images and modules are usually just wasting space. While you can go into Synaptic, search for all the bits and pieces of previous kernels, and mark them for... Read More
Monitoring a ReadyNAS with OpsView is just a matter of creating the right service checks using SNMP. Prerequisites Ensure you have the following: 1 x Opsview Master (This example we are using the Opsview Core 3.2 on Ubuntu 10.04 LTS vm from Opsview) ReadyNAS MIB from here Step 1 Setup the ReadyNAS for read only SNMP traffic. Login to the ReadyNAS administrator screen and enable SNMP under System -> Alerts, and choose the SNMP Tab. Step 2 Install the ReadyNAS MIB on the... Read More
As most of you know that with ESX 4.x SNMP monitoring has been crippled. An alternative is to monitor ESX/i hosts via the Web API that ESX/i has provided. This post summarizes the work involved to successfully monitor your ESX/i environment using Opsview and the vSphere SDK for Perl. Prerequisites Ensure you have the following: 1 x Opsview Master (This example we are using the Opsview Core 3.2 on Ubuntu 10.04 LTS vm from Opsview) 1 x support account http://www.vmware.com/support/ Installation... Read More
If you haven’t followed it, or even heard of it, Google has come up with yet another innovation. Glass. If you haven’t seen the Google Glass project yet, check out this video to see the potentially revolutionary product at work… so what would you do with Glass?
In order to force Active Directory replication, issue the command ‘repadmin /syncall /AeD’ on the domain controller. Run this command on the domain controller in which you wish to update the Active Directory database for. Switches: A = All Partitions e = Enterprise (Cross Site) D = Identify servers by distinguished name in messages. P = […]