Article View: comp.bugs.4bsd
Article #18UID mapping
From: Ed Gould
Date: Wed, 28 Jun 1989 00:58
Date: Wed, 28 Jun 1989 00:58
16 lines
1265 bytes
1265 bytes
>Separate issue(s): 1) RFS-style mapping has, I think, been implemented >by Cray, and 2) RFS also has, I think, the same notion of a "nobody" UID. There are several issues associated with UID mapping. One of the potential problems with RFS, which claims to preserve *all* of the Unix filesystem semantics, is that set-uid programs can fail to work properly unless the maps are both one-to-one and invertable. On big servers with lots of administratively unrelated clients - the situation where UID mapping is most needed - this may be a real problem if users make their own set-uid programs and store them on the server. -- Ed Gould mt Xinu, 2560 Ninth St., Berkeley, CA 94710 USA ed@mtxinu.COM +1 415 644 0146 "I'll fight them as a woman, not a lady. I'll fight them as an engineer."
Technical Details
Message-ID:
<901@mtxinu.UUCP>Path:
arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!ucbvax!mtxinu!edReferences:
<1120@servax0.essex.ac.uk> <10406@smoke.BRL.MIL> <1839@auspex.auspex.com>Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!ucbvax!mtxinu!ed From: ed@mtxinu.COM (Ed Gould) Newsgroups: comp.bugs.4bsd Subject: UID mapping Keywords: UID mapping, RFS Message-ID: <901@mtxinu.UUCP> Date: 28 Jun 89 00:58:34 GMT References: <1120@servax0.essex.ac.uk> <10406@smoke.BRL.MIL> <1839@auspex.auspex.com> Reply-To: ed@mtxinu.COM (Ed Gould) Organization: mt Xinu, Berkeley Lines: 16