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...
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 ...