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.

Continue reading How to change computer name remotely using Windows 7?

How to run application on specified interface?

If you have two interfaces, you can run programs using one of them (despite the fact that Windows selects default interface based on a metric value). For example I virtualize Windows 7 and I need same static ip for it that my host computer uses. It’s OK, in this scenario I can run applications using Virtualbox NAT (this virtual adapter ip is something like 10.0.2.15). But I’m also a Heroes III gamer and I love to play with my coleagues using LAN. So there is need for a second adapter in bridged mode (with ip like 192.168.x.x).

What can I do?
Amazingly there is a Windows application that can do that. Simply download ForceBindIP from this site.

Usage is simple as that:

ForceBindIp -i 10.0.2.15 c:\Windows\System32\mstsc.exe

10.0.2.15 – interface ip

Remember to pass full path for a program that you’re trying to run!