there are numerous pre-installed users in the
/etc/passwd file. some of which are indeed not being
used and may be removed (/etc/group file may/
should also be updated, if you do this).
but in any system, before deleting anything, make sure
you make backups of the file/s so that you can restore
them back if in any case something goes wrong after
restarting/relogging.

hope this helps.

-----
there are a lot of user acounts in our server. like
news, lp, etc. can i
safely delete them or is it okay for them to remain
there because they are
essential to the smooth operation of the server? what
about their
passswords?

anyway, thanks.

Fritz Mesedilla
Systems Administrator



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