Date: Tue, 20 Jul 1999 12:49:08 -0400 From: Christopher Michaels <ChrisMic@clientlogic.com> To: 'Marc Silver' <marcs@is.co.za>, "'freebsd-questions@freebsd.org'" <freebsd-questions@freebsd.org> Subject: RE: DoS?? Or did I break something?? Message-ID: <6C37EE640B78D2118D2F00A0C90FCB4401105AC2@site2s1>
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Well as I've been lucky enough in life to not have to debug my kernel, I'm not veteran to it, but you may want to take a look at http://www.freebsd.org/handbook/kerneldebug.html , which is the Handbook page on debugging the kernel. At the very least you should be able to keep the panic on the screen long enough to jot the info down, so one of the hackers can help you. -Chris > -----Original Message----- > From: Marc Silver [SMTP:marcs@is.co.za] > Sent: Tuesday, July 20, 1999 7:59 AM > To: 'Christopher Michaels'; 'freebsd-questions@freebsd.org' > Subject: RE: DoS?? Or did I break something?? > > Hi there, > > To further explain this: > > This does not happen when I don't use mount_null. There are no messages > that give any clue in /var/log/messages or the ftpd log file. > > Any ideas? :) > > Thanks, > Marc > > > > -----Original Message----- > From: Christopher Michaels [mailto:ChrisMic@clientlogic.com] > Sent: Monday, July 19, 1999 7:38 PM > To: 'Marc Silver'; 'freebsd-questions@freebsd.org' > Subject: RE: DoS?? Or did I break something?? > > > I can't say that I have an answer to your question, but maybe a couple > things that can help you figure it out. > > Sounds like a panic to me, is there anything in /var/log/messages? > Does it happen if you don't use the mount_null? Throw a couple dummy > files > in /var/ftp/pub and see if it still happens. > Is this a production machine? If not you could enable crash dumps and > possibly a debug kernel so you can get more information on the crash. > > Hope this helps, > > -Chris > > P.S. Please CC: the mailing list in all replies. > > > -----Original Message----- > > From: Marc Silver [SMTP:marcs@is.co.za] > > Sent: Monday, July 19, 1999 11:09 AM > > To: 'freebsd-questions@freebsd.org' > > Subject: DoS?? Or did I break something?? > > > > Hi all, > > > > I'm not sure if this is something you all know about, or if it's my own > > stupidity....either way, let me explain the situation: > > > > I have an FTP server running FreeBSD 3.1, and using the standard ftpd > that > > comes with BSD. I have enabled the "-l -l" parameter in inetd, and all > > logs > > are being put into /var/log/ftpd.log. Those are the only modifications > I > > have made to the default system. > > > > I then have my ftp directory in /var/ftp which is 40 MB, and the "pub" > > directory I am mounting using mount_null . The actual pub directory is > in > > /usr/ftp_pub > > > > The problem comes when I ftp from the local machine to the machine > itself. > > (ie ftp localhost). The minute I try retrieve a file, the machine > sync's > > the disks with some nasty error that doesn't stay on the screen long > > enough > > for me to catch and then just reboots with NO entries in the logs. > > > > Has this got something to do with the mount_null command being used in a > > chrooted enviroment?? This only seems to crash the machine when used > from > > the machine itself. Outside machines can download with any problem. > > > > Please mail me directly with any ideas, as I am not on this list.... > > > > Thanks, > > Marc > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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