Archive - Wary SysAdmin

SPN's in Active Directory

And why use them ...

Nov 26, 2023 •

Sergio Goncalves

September 2023

Securing your domain name for email (continuation)

In the last post I wrote about the importance of email security and the available methods to achieve it. Now it's time to go a bit deeper and show how…

Sep 10, 2023 •

Sergio Goncalves

Securing your domain name for email

Email is everywhere. Once a novelty and something that only geeks would use, to now being a absolute necessity for businesses and individuals. It is an…

Sep 3, 2023 •

Sergio Goncalves

August 2023

This is Wary SysAdmin.

Aug 30, 2023 •

Sergio Goncalves

February 2018

How to fix “The update is not applicable to your computer” error.

How to fix “The update is not applicable to your computer” error. It’s not often one will have this issue with an update, and it’s not easy to find a…

Feb 7, 2018 •

Sergio Goncalves

February 2017

Protect public Linux servers with fail2ban

Do you have public facing Linux servers? Of course you do. Who doesn’t!?!? Or why would you be here if you wouldn’t? I’m not a big fan of security…

Feb 5, 2017 •

Sergio Goncalves

September 2015

Powershell – One liner from one of the best

Let’s talk about re-setting passwords. I know this is hardly news but, I saw this small one liner in a MVA video with Ashley McGlone and thought I would…

Sep 24, 2015 •

Sergio Goncalves

July 2015

Active Directory accounts – Security Auditing (The very basics – part 2)

How many Domain Admins are there in my ActiveDirectory domain? Have you ever asked yourself this question? If you haven’t, you should … or you landed in…

Jul 30, 2015 •

Sergio Goncalves

December 2014

Move hidden Window

Dear reader, Recent events made me get this tip way from my old days. When I was young and Windows 3.1 was the most amazing thing i had ever seen. Ahh…

Dec 14, 2014 •

Sergio Goncalves

November 2014

Dear reader, Do yourself a favor and enable AD Recycle Bin. You might never use, but if you ever do, I’m sure you’ll be thankful. Enable AD Recycle Bin…

Nov 17, 2014 •

Sergio Goncalves

Duplicate folder tree in Linux

Quick tip. This can be very handy when you need to frequently create a folder structure without files (Ex. Project folders or multiple versions of a…

Nov 14, 2014 •

Sergio Goncalves

October 2014

Linux Performance – Swap partition vs Swap files (The Swap Files How To)

And I’m back, paging myself in, so we wrap up this topic. So with the process pages all in in their frames, let’s add some more swap. File format this…

Oct 26, 2014 •

Sergio Goncalves

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