Windows Server: Disabling SSL 3.0, TLS 1.0, and TLS 1.1
May17

Windows Server: Disabling SSL 3.0, TLS 1.0, and TLS 1.1

KB ID 0001675 What are these protocols? Both SSL and TLS are cryptographic protocols designed to secure communications over a network (remember the internet is just a network). Originally we had SSL version 1 and version 2. But they were, (to be honest) ‘a bit bobbins’ and full of security holes, so never really took off. Version 3 however did and was widely supported. The problem with version 3 was, (again) that was also ‘bobbins’....

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DHCP Scope: Full of BAD_ADDRESS Entries
Feb05

DHCP Scope: Full of BAD_ADDRESS Entries

KB ID 0001651 Problem I had a client machine struggling to get an DHCP address, and when I looked in DHCP the scope it was full of this; BAD_ADDRESS This address Is Already in Use Solution A tour of Google and forums is full of posts by people with this problem, and other than, ‘Oh I looked in the logs and fixed it’ (with no mention of what log, or where this log was), or ‘Yeah I used Wireshark and located a problem...

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Get Ready for LDAPS Channel Binding
Jan28

Get Ready for LDAPS Channel Binding

KB ID 0001645 Problem I have written about Enabling LDAPS a long time ago, but it’s a subject that’s about to become important again, so I’ll revisit the subject. Microsoft are about to ‘enforce’ LDAPS authentication against their domain controllers, in the March 2020 round of updates. Now delayed until second half of 2020. What does that mean? Well lookups against LDAP will now need to be secure, (i.e....

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Windows Server – Change Your Password in an RDP Session (Send Ctrl+Alt+Del)
Jan21

Windows Server – Change Your Password in an RDP Session (Send Ctrl+Alt+Del)

KB ID 0001183  Problem Colleague: Windows Server, Where’s Windows Security gone? Me: Eh? Colleague: Windows Security! Me: What are you trying to do? Colleague: I want to change my password and I can’t send a Ctrl+Alt+Delete to the remote server. Well I know that pressing Crtl+Alt+Delete would let you change your password like so; I wasn’t aware that in Server 2008 and earlier if you were connected via RDP you got a...

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How Do I Find/Change My IP Address?
Jan17

How Do I Find/Change My IP Address?

KB ID 0000208 What’s an IP address? An IP address is the address used on a network to find your PC, Server, Laptop, or Printer etc. It’s the networking equivalent of your house number and post code (or Zip Code for visitors from over the pond). Do you want your PUBLIC or PRIVATE IP address? As we started to run out of addresses, there were a number of solutions that we came up with, one you will see below (DHCP) the other...

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Windows – Find your ‘Uptime’
Jan02

Windows – Find your ‘Uptime’

KB ID 0000552  Problem There are lots of reasons you might want to know your PC/Servers uptime, to make sure a client has rebooted a server (like you asked them to), or to see if a server has had a BSOD and rebooted overnight, etc. Check Uptime with Task Manager You can get your uptime from the Task Manager’s “Performance” tab. To launch Task Manger Start > Run > Taskmgr.exe {enter}. or Press CTRL+SHIFT+ESC, or...

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