Date: Wed, 20 Jun 2001 10:40:15 -0500 From: Gunther Schadow <gunther@aurora.regenstrief.org> To: Anastasia Leventi-Peetz <leventi@fgan.de> Cc: users@ipv6.org, users-ship@ipv6.org, freebsd-net@freebsd.org Subject: Re: ftpd-BSD and standalone Message-ID: <3B30C3DF.8051A0A0@aurora.regenstrief.org> References: <200106201338.PAA03913@melle.ffm.fgan.de>
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Anastasia Leventi-Peetz wrote: > > hello Gunther, > > thanks a lot for the interesting mail. > I don't do IP filters that's for sure. I am astonished that > on the bieringer www page (www.bieringer.de) the standalone modus > is recommended! I run the IPv6 ftpd of Free-BSD (downloaded and > compiled from the bieringer page) installed on the SuSE distribution. > The line in the inetd.conf file of SuSE Linux looks like: Hmm, sounds very complex and self-stiched. Why don't you just use FreeBSD out of the box? I don't know what this bieringer thing is supposed to do. If they have modified the source code of the ftpd, anything can happen. But the diagnosis to your problem is pretty straight forward: > ftp stream tcp6 nowait root /usr/sbin/tcpd ftpd-BSD -D -6 woops, tcp-wrappers (tcpd) take 'em out, they confound the problem. > Of course ftpd-BSD is in directory /usr/sbin/ hmm, even that I wouldn't bet on being found by the wrappers. Check you syslog dump (/var/log/messages or /var/log/ftp or anything in /var/log) for warnings and errors. > The above thing fails so that I start standalone the daemon with the above switches. The two reasons why it may work then is - you don't do tcp-wrappers if you just say ftpd-BSD -D -6 and - ftpd-BSD is in your PATH > Now the corresponding line in Free-BSD is > ftp stream tcp nowait root /usr/libexec/ftpd ftpd -l yes, no tcp wrappers. And about the options RTFM: -D makes ftpd to become a daemon itself. This is *not* what you want when you let inetd manage the services. So, take that -D out. -l maked ftpd log accesses, you do want that no matter what (and it helps in debugging.) -6 is only an issue when -D is specified, i.e., no need when using inetd. > I have tried both options: above line with tcp6 and ftpd -D -6 > or only tcp and ftpd -D -6 but I couldn't start the daemon with inetd. Try *both* of the following lines in inetd.conf ftp stream tcp nowait root /usr/sbin/ftpd-BSD ftpd -l ftp stream tcp6 nowait root /usr/sbin/ftpd-BSD ftpd -l that's all you need. Notice that the 6 versus 4 issue is handled by inetd (tcp vs. tcp6) and you need one inetd.conf line for each. Having both makes it easier to distinguish whether you have an IPv6 problem somewhere (but do use numeric addresses for testing, to be sure you use the right IP version.) > (It doesn't seem to be started from tcpd like in SuSE case). > I do have the ready ipv6 able daemon. > Then I started it manually /usr/libexec/ftpd -D -6 -a interfacename Now I'm confused. There is something wrong about how you named your files and in which directory you put them. Before you said /usr/sbin, now you have /usr/libexec, before you said ftpd-BSD now you say just ftpd. On FreeBSD this is /usr/libexec/ftpd. Be sure you grab the right file. And make sure you give the full path in inetd.conf. Also, never use the -D option with inetd.conf; it can't work! With -D ftpd tries to bind(2) another socket and since it's already bound by inetd, it'll fail right away. Also, if you use nowait in inetd and call something that doesn't handle the connection, you'll get inetd cycling through calling ftpd again and again. If this goes on too often, inetd figures that it's not gonna work and shuts down the service alltogether. This is what happened in your case. -Gunther -- Gunther Schadow, M.D., Ph.D. gschadow@regenstrief.org Medical Information Scientist Regenstrief Institute for Health Care Adjunct Assistant Professor Indiana University School of Medicine tel:1(317)630-7960 http://aurora.regenstrief.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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