There's a broken link to the draft standard POSIX.1e in the capabilities(7) man page in the "CONFORMING TO" section. This is an important piece of history on where Linux capabilities came from. The broken link is: http://wt.tuxomania.net/publications/posix.1e/ We managed to dig up a copy of the original document on yet-another personal website, and preserved it on archive.org, so there's a more permanent location for it. https://archive.org/details/posix_1003.1e-990310 HTH, Allison