Date: Thu, 27 Nov 2003 22:39:33 -0500 (EST) From: "Michael L. Squires" <mikes@siralan.org> To: n.b@myrealbox.com (Guy Van Sanden) Cc: FreeBSD current mailing list <freebsd-current@freebsd.org> Subject: Re: 5.x DOS against NFS server Message-ID: <200311280339.hAS3dXV3001848@siralan.org> In-Reply-To: <1069948043.2861.28.camel@cronos.home.vsb> from "Guy Van Sanden" at Nov 27, 2003 04:47:23 PM
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Guy Van Sanden > > I just ran nmap <host>... > Nessus has the same effect. When running "nmap <host> (nmap 2.53 on a 4.9-STABLE box)) against a 5.2-BETA host on the host I see Nove 27 13:06:24 mikes sm-mta[483]: NOQUEUE: SYSERR(root): getrequests: accept: Software caused connection abort Nove 27 13:06:24 mikes nfsd[392]: accept failed: Software caused connection abort between messages about response rate limits to nmap queries. On the client running 5.1-CURRENT with "bonnie" using a 100MB file on a volume NFS mounted from the 5.2-BETA server there are no log messages and no obvious error messages; "bonnie" finishes normally. Mike Squires
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