Article View: comp.sys.next.misc
Article #3207Re: Password file
From: David Lemson
Date: Sat, 07 Nov 1992 06:14
Date: Sat, 07 Nov 1992 06:14
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jeffo@uiuc.edu (J.B. Nicholson-Owens) writes: >Douglas Floyd writes >> Is the NeXT Password file shadowed, or can anybody who logs on/ftps/ >> telnets onto your system obtain the password file so they can >> run crack on it and find more ways to break in? >The NeXT password file is not shadowed accessible without even having an >account on the system. You can do remote nidumps of someone else's password >file. Unfortunately making one's password information secure seems to be hard >(if not impossible) without changing a MAJOR portion of the operating system >(or at least this is what I was told by people on comp.sys.next.* when I asked >a similar question). Not exactly right. If you set the trusted_networks property in your root level of netinfo (or whatever level you want to protect), you can allow queries to only come from specific subnets. That is pretty good security, I think. (at least from outside people) However, Netinfo does not provide shadowing, and anyone who has a user account can get a copy of the password file and running nidump or a getpwent() call (if you have disabled nidump!) >Secure passwords that crack cannot decipher seem to be the best protection >against one's net-connected NeXT being broken into. Always true. -- David Lemson (217) 244-1205 University of Illinois NeXT Campus Consultant / CCSO NeXT Lab System Admin Internet : lemson@uiuc.edu UUCP :...!uiucuxc!uiucux1!lemson NeXTMail accepted BITNET : LEMSON@UIUCVMD
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Newsgroups: comp.sys.next.misc Path: arc1-ca.pugleaf.net!sparky!uunet!caen!uwm.edu!ux1.cso.uiuc.edu!lemson From: lemson@ux1.cso.uiuc.edu (David Lemson) Subject: Re: Password file Message-ID: <BxC1Bz.19v@ux1.cso.uiuc.edu> Organization: University of Illinois at Urbana References: <83164@ut-emx.uucp> <BxBIwK.97H@news.cso.uiuc.edu> Date: Sat, 7 Nov 1992 06:14:08 GMT Lines: 32