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- From: barmar@think.com (Barry Margolin)
- Newsgroups: alt.security
- Subject: Re: avast ye, swabs
- Date: 19 May 1992 19:57:28 GMT
- Organization: Thinking Machines Corporation, Cambridge MA, USA
- Lines: 22
- Message-ID: <vbmj8INNnk@early-bird.think.com>
- References: <2a190e81@babyoil.ftp.com>
-
- In article <2a190e81@babyoil.ftp.com> hobbit@babyoil.ftp.com (*Hobbit*) writes:
- >What do most people do about the warez kids who run around stuffing things
- >like "vistapro.arj" up into whatever writeable directories they can find
- >under folks' anonymous FTP trees? Is it worth bothering to track it? It
- >looks to primarily be a one-shot deal where someone ships in the files and
- >then six other people immediately grab them, but they don't clean up after
- >themselves in most cases.
-
- When we noticed this happening at our site I patched ftpd so that anonymous
- has a umask of 662. This way, anonymous FTP users can't download the files
- that are uploaded by other anonymous users. We use the writable
- directories under ~ftp so that colleagues can upload files to our
- employees, so I don't think this has caused any problems.
-
- In addition, I modified it so that anonymous can't delete files. This
- prevents them from erasing their tracks once they've created these
- unreadable files.
- --
- Barry Margolin
- System Manager, Thinking Machines Corp.
-
- barmar@think.com {uunet,harvard}!think!barmar
-
-