I need to help someone with installing some development packages and everything. I am running Ubuntu and the person I want to help is running MacOSX 10.5. What is the most easiest way to do this?
A solution which works with built-in software of that two systems:
On the Mac: System preferences > Sharing > Screen Sharing
On the Ubuntu computer: Applications > Internet > Remote Desktop Viewer
Of course, with this solution you have to go through the hassle of determining IP , firewall settings, etc, compared to rather easy tools like Teamviewer, but you have the advantage of having no need for 3rd party software, and the related issues of trust.