I need to convert the disk containing my operating system to a dynamic disk (from a basic disk). Unfortunately there is no room on the disk to convert the...

In Mac's finder, I want to right click on a file and hit one letter to automatically open the file in an editor (regardless of file extension). For e...

I have to start some program when the computer boots, for all users, and possibly before the user login. So how and where does I have to put them?

A few quick things out of the way as I know these type of questions often have a malicious background. I am not trying to execute something in a file form...

I accidentally pressed the wrong key (not sure which) while typing and my laptop's screen went dim. I can't get it to go back to how it was. (I&...

often cert files (in PEM) format contain multiple certs like: -----BEGIN CERTIFICATE----- ... -----END CERTIFICATE----- -----BEGIN CERTIFICATE----- ..... ...

How do I edit an already-in-production .cmd script file, in order to have the script delete a certain registry key in the Windows registry? Firstly, is th...

I'm trying to figure out how to deal with whitespace in grep. How do I tell grep to find strings containing whitespace or tabs? The manual tells me n...

I have a linux computer acting as a server which can accept incoming SSH connections. Is it possible to reliably connect multiple devices at the same time...

In may case I have two openwrt routers connected with openvpn bridge. Traffic can stoped by iptables with iptables-mod-extra: iptables -I FORWARD -m physd...