How to change priority on Windows scheduled task using Powershell?

By default Windows setups task priority in scheduler to 7 (which is kinda low). The side effect of this is that for eg. backups are taking very long to take. In my case all databases were backed up in about 40-50 minutes…

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How to find network device using it’s manufacturer name?

I’ve previously posted a note about finding Raspberry Pi without knowing it’s ip address. Well, basically it’s the same… Only you need to change MAC prefix to find other manufacturer. To wrap this is up, this is a command to find device by MAC prefix:

sudo nmap -sP 192.168.100.0/24 | awk '/^Nmap/{ip=$NF}/00:D0:23/{print ip}'

And here you can find actual MAC information (use CTRL+F).

Of course you need Nmap to do that! And sudo is necessary!

Beware that sometimes there might be many prefixes for one manufacturer. Also check company name precisely, for example HP is Hewlett Packard but it also can be ProCurve Networking by HP.

PHP reading problem with files larger than 2 GB

If you’ll ever have problem with opening (fopen) and reading (fread) files larger than 2 GB in your PHP script. Check your version of scripting engine. In my case switching to 64 bit solved the problem. Please mind that this error is very hard to debug because PHP does not log anything (same as MS IIS) in such case. It simply resets client connection…

How to change computer name remotely using Windows 7?

There is a command line tool called netdom. Unfortunately it’s not preinstalled on Windows 7. This guide will show how to add this tool to your system and how to change remote computer name.

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