Date: Wed, 1 Sep 1999 15:10:25 -0400 (EDT) From: Systems Administrator <geniusj@ods.org> To: Nick Hibma <hibma@skylink.it> Cc: FreeBSD -- The Power to Serve <geniusj@free-bsd.org>, Mike Tancsa <mike@sentex.net>, freebsd-security@FreeBSD.ORG Subject: Re: FW: Local DoS in FreeBSD Message-ID: <Pine.BSF.4.10.9909011510150.48475-100000@ods.org> In-Reply-To: <Pine.BSF.4.10.9909012215420.7489-100000@heidi.plazza.it>
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The average Joe doesn't run FreeBSD ------------------------------------------------------------------------------ Jason DiCioccio | geniusj@free-bsd.org FreeBSD - The Power to Serve | http://www.freebsd.org | http://www.ods.org ------------------------------------------------------------------------------ On Wed, 1 Sep 1999, Nick Hibma wrote: > > That's one of the comments Microsoft makes when a security hole is > discovered, switch off that, increase the security level here. It always > makes me kind of mad, because that's not what the Joe Average does or > is considers something he should do until it's too late. > > One of the features I like about Unix is for example free space > available solely to the root user. It could be imagined that these > things also apply to file handles, memory/swap space and other scarce > resources. > > Nick > > > > Exactly what I mean! Limit file descriptors, and it also uses a lot of CPU > > time so you can limit that too.. It will never crash the system with the > > proper limits set :). They can run it all they want. > > > > > > On Wed, 1 Sep 1999, Mike Tancsa wrote: > > > > > At 11:49 AM 9/1/99 -0600, FreeBSD -- The Power to Serve wrote: > > > >If you have public access users, you should have login accounting in the > > > >first place.. and yes, it does stop it :).. I verified this on a 3.2 box > > > >with my login accounting setup.. > > > > > > How does accounting stop it ? Or do you mean it just discourages users > > > from doing it ? How much overhead does accounting add to the system ? > > > Also, limiting the amount of file descriptors can prevent it, as the 'bug' > > > is essentially a resource starving issue (e.g. fork bomb) > > > > > > ---Mike > > > ------------------------------------------------------------------------ > > > Mike Tancsa, tel 01.519.651.3400 > > > Network Administrator, mike@sentex.net > > > Sentex Communications www.sentex.net > > > Cambridge, Ontario Canada > > > > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > > with "unsubscribe freebsd-security" in the body of the message > > > > > > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > with "unsubscribe freebsd-security" in the body of the message > > > > -- > e-Mail: hibma@skylink.it > > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
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