On Sun, Jun 23, 2013 at 2:11 PM, Lawrence K. Chen, P.Eng. <[email protected]>wrote:
> getty OTOH, handles the user authentication and then exec's (which > replaces the process memory that its using, with) the login shell. And, > luckily there was still enough available for that to work. Also its > necessary to use root instead of our individual admin accounts, because > /bin/sh is only about 20% bigger than getty. While shells like > bash/tcsh/zsh are more than 5 times bigger than /bin/sh. Most of us use > bash for our admin accounts, one person uses tcsh (though he never > complained that his account had stopped working, because tcsh wasn't being > made available anymore...he'd just use root directly), and another has been > playing around with zsh. > > Though not sure how it translates if it was a system with ttymon and more > than one tty port.... > PAM session management pretty much requires that the user session be fork()ed from the root part so that PAM can do administrative cleanup as root. Although I don't know if older Solaris bothers with that, much like early Linux PAM didn't and it was impossible to make sure the right things happened in the right contexts. -- brandon s allbery kf8nh sine nomine associates [email protected] [email protected] unix, openafs, kerberos, infrastructure, xmonad http://sinenomine.net
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