A repository of information that i've found from my experience, anything interesting I find i'll post up here so that someone else might find it useful! My posts will be classified by subject area on the left hand column, select the subject area or search the site using the "Search this site" button at the top right. The most recent posts are listed for each topic area below, hope you find something of help!
VMWare
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Can't unmount an NFS datastore from a ESXi host
PROBLEMAs part of a storage replacement programme, we had migrated all our VMs off the NFS datastore. When attempting to unmount the datastore from the host(s) we where ...
Posted 29 Sep 2017, 03:53 by Tristan Self
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vMOTION (including Storage vMOTION) Fails Migrating from ESXi 5.5 to ESXi 6.0 U1
When attempting to migrate a VM from VMware ESXi 5.5. to ESXi 6.0 U1 you may experience problems, this does not affect all VMs only some and they ...
Posted 25 May 2017, 06:44 by Tristan Self
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Ping from a specific VMKernel Port to test Connectivity
If you need to test connectivity between two VMKernel ports VMK's you can use the following command:# vmkping -I vmk2 <Destination IP>If you have seperate IP stacks for ...
Posted 28 Nov 2016, 01:37 by Tristan Self
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HP BL490c G7 Blade within a c7000 BladeSystem Chassis with Flex-10 Networking Fails after ESXi 5.5 Upgrade
After an upgrade to ESXi 5.5 from ESXi 5.1, all the networking on the host stopped working, as I had already upgraded other BL490c G7 blades with (seemingly ...
Posted 22 Aug 2016, 12:05 by Tristan Self
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When trying to deploy an OVF using the web interface getting error: Client Integration Plug-in must be installed to enable OVF functionality
Problem: When trying to deploy an OVF using the web interface, you getting this error message below. Even when you have installed the client integration plugins it still doesn't ...
Posted 19 May 2016, 01:53 by Tristan Self
Microsoft Windows
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Disable UAC in Microsoft Windows 2012 R2
If you like me, don't want to have an admin prompt each time you want to save a file to a server you can disable UAC, by ensuring that ...
Posted 20 Jan 2016, 01:20 by Tristan Self
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Copy files within a directory structure to another directory, leaving the directories behind
I had an interesting request, how to move a load of PDF files from one directory structure to another but leaving behind that directory structure so all the files end ...
Posted 5 Aug 2015, 03:22 by Tristan Self
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Create a SSL CSR from Command Line with Subject Alternate Name
To create a CSR and include not only a CN (Common Name) but also a SAN(s) too, you can use the following process.1. Firstly create a text file ...
Posted 16 Jun 2015, 07:09 by Tristan Self
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Remove licence from Office 365 user
In our case, we were needing to remove some licences from some users, as we had an educational licence, the names of the service plans and licenses were a bit ...
Posted 27 May 2015, 01:08 by Tristan Self
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Backup Pcounter balances for export to another system
So you are moving from Pcounter to another printing system, but you want to export your users balances to export them to another system.To do this find the account ...
Posted 26 May 2015, 07:24 by Tristan Self
Linux and Nagios
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Raspberry Pi Time Synch
The Raspberry Pi lacks a real time clock, which means that the time can drift, so much so that NTP fails to update the software clock because its skewed so ...
Posted 22 May 2017, 12:50 by Tristan Self
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NagiosXI check_ldap Error - Could not bind to the LDAP server
When attempting to use the check_ldap plugin, I found that unsecured LDAP lookups on port 389/TCP worked fine, but attempting a secure lookup on 636 or using TLS ...
Posted 4 Jan 2017, 03:25 by Tristan Self
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Setup SSH Gateway on Raspberry Pi
So looking for something to use your Raspberry Pi for? I had a Mk1 Raspberry Pi laying around and thought it might be good to set it up as a ...
Posted 19 Dec 2016, 13:24 by Tristan Self
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Ubuntu, find used disk space.
To easily find where your disk space is being used from the command line you can use the NCDU utilty.To run this use:# ncdu -x /
Posted 5 Sep 2016, 07:15 by Tristan Self
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Check an SSL Certificate File in plain English
You need to verify that a file cert.pem contains the certificate you expected, to do this you can use this command to view the certificate in plain text with ...
Posted 7 Mar 2016, 05:13 by Tristan Self
Cisco and Networking
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HP BladeSystem Flex 10 Ethernet Switch Configuration
Had to do a bit of configuration on an HP c7000 blade chassis the other day. There was a need to have two separate uplink pairs going to two different ...
Posted 19 Aug 2016, 07:46 by Tristan Self
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Cisco ASA Firewall - DMZ to Inside Access
On a Cisco ASA firewall you will probably want to use the DMZ for servers that are web facing, and also restrict/deny any access they have to the internal ...
Posted 15 Jul 2015, 09:26 by Tristan Self
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Cisco ASA NAT Exemption (post version 8.3)
The changes to the ASA IOS post version 8.3 changes the way that NAT works. NAT Exemption is normally used to disable translation for certain addresses e.g. for ...
Posted 13 Jul 2015, 08:52 by Tristan Self
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Cisco ASA Static NAT (pre version 8.3)
Pre version 8.3 to statically NAT an internal host to an external IP address you would use the following: static (inside,outside) 212.219.63.195 192.168.100 ...
Posted 13 Jul 2015, 06:35 by Tristan Self
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Cisco ASA Dynamic NAT Example (Post version 8.3)
Okay a basic example with a Cisco ASA for the NAT rules. Lets say there is PC1 on the inside network that you want to have internet access. The IP ...
Posted 13 Jul 2015, 08:29 by Tristan Self
General IT
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Running BT Analogue Telephone Line via Structured CAT5e Network Cabling (RJ45)
From time to time you need to run normal POTS telephone over structured cabling, the main issue is that in the UK the pin outs can be different from the ...
Posted 26 Oct 2016, 04:31 by Tristan Self
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SharePoint 2013 - Fix graphical glitch on timeline
We had a weird graphical glitch on the timeline webpart on our SharePoint installation, we couldn't figure out what was happening. Until that is we checked out the element ...
Posted 25 Jun 2015, 02:15 by Tristan Self
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SharePoint 2013 - Hide Horizontal Scrollbar on Front Page
On our Microsoft SharePoint 2013 home page, we had a horizontal scrollbar appear.What seemed to be happening was within the master CSS file was that the "s4-workspace" was ...
Posted 23 Jun 2015, 07:45 by Tristan Self
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Hide Search Box on top bar of SharePoint 2013 Front Page
So you have the box at the top, this confuses our users, so we need to remove it. To do this you can just use a simple script on the ...
Posted 23 Jun 2015, 01:57 by Tristan Self
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Change size of Search Box Web Part - SharePoint 2013
You want to change the size of the search box web part, this is fairly straight forward when you know how.1. Firstly get the name/ID of the search ...
Posted 22 Jun 2015, 03:01 by Tristan Self
Microsoft SQL and Databases
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