This article is more than a decade old, but a lot of content is still relevant. http://web.mit.edu/tytso/www/OPTIONS-HOWTO/OPTIONS-HOWTO.html http://web.mit.ed

This article is more than a decade old, but a lot of content is still relevant. http://web.mit.edu/tytso/www/OPTIONS-HOWTO/OPTIONS-HOWTO.html http://web.mit.edu/tytso/www/OPTIONS-HOWTO/OPTIONS-HOWTO.htm...