Firefox: Cannot Open vCenter Web Client
KB ID 0001482 Problem I wonder how many hours Ive lost trying to get browsers to connect to things, and the browser has not been happy? This week I needed to connect to a vCenter (6.5) web console with Firefox and was greeted with this. Your connection is not secure The owner of {site} has configured their web site improperly. To protect information being stolen, Firefox has not connected to this website. Error Code:...
VMware: The OVF Descriptor is Not Available
KB ID 0001483 Problem I’ve seen this a couple of times now, and each time I’ve (wrongly) assumed that the OVA/OVF file I’ve downloaded is either corrupt, or it has some sort of problem. Failed to deploy OVF package. Cause: A general system error occurred: Transfer failed: The OVF descriptor is not available. Solution Redeploy the OVF file, but this time instead of selecting the Cluster, select A SPECIFIC HOST to...
How to Transfer Files from PC to iPhone Wirelessly
KB ID 0001481 Written by Tag Jones When it comes to transferring files from PC to iPhone and vice versa, the most obvious choice is to use iTunes. However, it has been found that many users don’t like working with this application. Bloated and ponderous, iTunes continues Apple’s ongoing trend of having lost its design mojo. Luckily, we have other options. One of the easiest ways is to use Wi-Fi Direct Transfer. With this...
Office 365: Allow Mail Relay Through Exchange Online
KB ID 0001480 Problem If you are used to running ‘on-prem’ Exchange then allowing an IP/Hostname to relay mail (sent mail through without authenticating) it’s handy for things like older multifunction scanners, or applications that need to send emails. Now you SHOULD be sending mail through Office 365 ‘authenticated’, but that’s not always possible. Solution From Office 365,Launch The Exchange admin...
VMware Cannot Remove / Unmount an NFS Store
KB ID 0001479 Problem After I had a datastore failure I needed to ‘unmount’ a datastore in my VMware 6.5 environment. But when I attempted to do so I got; The “Remote Datastore” operation failed for the entity with the following error message. The resource “Datastore-Name” is in use. Solution In use by what? Thanks for the assistance! Usually this happens because you have a VM with a VMDK in their...
Install and Use a Windows TFTP Server
Windows TFTP KB ID 0000063 Problem Note: If you are using a mac, then seee the following link; MAC OS X TFTP Software There are many free tftp applications, my personal favourite is 3Cdaemon, as it also has a built in syslog server and an FTP server. heres how to install it on your computer. There are a number of places you can download 3CDeamon or just CLICK HERE Deploy a windows TFTP Server Download the files and extract them to...
ASDM on Windows 10: ‘Cannot find Javaw.exe?’
KB ID 0001478 Problem Windows 10 machine, (with Latest Java installed), while attempting to launch the ASDM you see; Windows cannot find ‘javaw.exe’. Make sure you typed the name correctly, and then try again. Solution I should have fixed this a lot quicker than I did, because the error message was a lot more descriptive in older versions of Windows and the ASDM! This is the same problem seen on Windows 8. You still need...
Cisco ASA No Debug Output?
KB ID 0001477 Problem I see this get asked in forums A LOT, typically the poster has another problem they are trying to fix, someone has asked them to debug the problem and they cant see any debug output. Solution Firstly you need to understand what logging is, and how debugging fits within it. (Bear with me, this is good knowledge to have). The firewall saves logs in syslog format, and there are 8 Levels of logs, the one with the...
ASA Connection Error: ‘The First Key-Exchange Algorithm’
KB ID 0001476 Problem When attempting to connect to a Cisco ASA firewall via SSH you see the following error; The first key-exchange algorithm supported by the server is diffie-hellman-group1-sha1, which is below the configured warning threshold. Do you want to continue with this connection? Clicking ‘Yes’ will let you connect. Solution When connected, execute the following commands; conf t ssh key-exchange group...
PowerShell: Bulk Add/Remove Users From Groups
KB ID 0001475 Problem I had to do this a few weeks ago, so I documented it. I had a list of usernames in a CSV file and I needed to bulk-add them to a security group. Bulk Add Group Users Solution Firstly you will need the usernames (sAMAccountNames) in .csv format like so, (Note: As a header Im using User-Name.) I’ve saved the file to C:\Temp on my server. Execute the following commands; Import-Module ActiveDirectory ...