Date: Fri, 19 Mar 1999 01:43:39 +1300 From: Andrew McNaughton <andrew@squiz.co.nz> To: "Daniel C. Sobral" <dcs@newsguy.com> Cc: Dmitry Valdov <dv@dv.ru>, freebsd-current@FreeBSD.ORG, freebsd-security@FreeBSD.ORG Subject: Re: disk quota overriding Message-ID: <199903181243.BAA22599@aniwa.sky> In-Reply-To: Your message of "Thu, 18 Mar 1999 03:03:06 %2B0900." <36EFEE5A.DE68FF5F@newsguy.com>
next in thread | previous in thread | raw e-mail | index | archive | help
> Dmitry Valdov wrote: > > I think that there is only one way to fix it - it's to disable making > > *hard*links to directory with mode 1777. I don't use quotas, and don't know a great deal about how they operate, but I think there's another disk filling DOS involving hard links lurking which the above measure would also solve. If a user starts making hard links to (large and growing) log files, with the new links being placed in /var/mail, then presumably those log files will not be deleted correctly as they are rolled over, and will quickly accumulate. This could not bring down a system as rapidly as growing the publicly writable directory with lots of links, but it is not desirable system behaviour. Andrew McNaughton -- ----------- Andrew McNaughton andrew@squiz.co.nz http://www.newsroom.co.nz/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199903181243.BAA22599>