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Technical tips collected over several decades in IT

PHPSECLIB3 Client Algorithms

Recently our EDI supplier notified that they were changing their SFTP encryption and data integrity algorithms I use https://api.phpseclib.com/3.0/phpseclib3/Net/SFTP.html to talk to their SFTP gateway. So I to confirm the change would not cause an issue I had to...

Run 7-zip from powershell

The performance of both the Windows and Powershell Zip utilities is abysmal The following Powershell script enables a Zip operation on approximately 0.33GB of data consisting of around 59,000 files to go from minutes down to less than a minute using 7-Zip instead of...

So many Email Scams

The internet is a waterhole and we are digital gazellesJames McDonald 2024 Look at the text below of 2 emails I received sent to two of my email aliases from two different From addresses I presume it just requires you to reply to the query and then they send some...

Cannot provision an Azure Marketplace VM with Free Subscription

Problem: Trying to provision OpenVPN Access Server from the Marketplace and get: You cannot purchase reservation because required AAD tenant information is missing. Please ask your tenant admin to fill this form: https://aka.ms/orgprofile (Code: "AccountSetupError)"...

Meraki Open Source Licenses

Until today I assumed that Meraki was built in-house with only closed source software. But having a look at the Meraki-Firmware-Licenses bundle it is clear that like Unifi Cisco is using many Open Source packages to bring together it's offering: Having only just...

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