default /etc/hosts and ftp
Boris Samorodov
bsam at ipt.ru
Fri Feb 22 16:16:13 UTC 2008
On Fri, 22 Feb 2008 18:58:05 +0300 Alexander V. Chernikov wrote:
> Boris Samorodov wrote:
> > I'm seeing a strange /etc/hosts effect with ftp to the host itself.
> > The file /etc/hosts was created while installing (this is a fresh
> > 8-CURRENT install). The lines in question from /etc/hosts:
> > -----
> > 192.168.1.100 testbox.bsam.ru testbox
> > 192.168.1.100 testbox.bsam.ru.
> > -----
> >
> > The ftp service is invoked by indetd:
> > -----
> > ftp stream tcp nowait/100/100/10 root /usr/libexec/ftpd ftpd -ll4A
> > -----
> >
> > The effect:
> > -----
> > % fetch ftp://testbox.bsam.ru/pub/FreeBSD/ports/amd64/packages/8-bsam/Latest/portupgrade.tbz
> > load: 0.02 cmd: fetch 8217 [connec] 0.00u 0.00s 0% 2216k
> > fetch: ftp://testbox.bsam.ru/pub/FreeBSD/ports/amd64/packages/8-bsam/Latest/portupgrade.tbz: Operation timed out
> > -----
> >
> > The relevant part from netstat:
> > -----
> > Proto Recv-Q Send-Q Local Address Foreign Address (state)
> > tcp4 0 0 testbox.61799 testbox.ftp SYN_SENT
> > tcp4 0 0 *.ftp *.* LISTEN
> > -----
> >
> > If the first line at /etc/hosts is deletted/commented out (changing an
> > order of those lines doesn't help):
> > -----
> > % fetch ftp://testbox.bsam.ru/pub/FreeBSD/ports/amd64/packages/8-bsam/Latest/portupgrade.tbz
> > portupgrade.tbz 100% of 127 kB 91 MBps
> > -----
> I'm not able to reproduce this on Feb 15 current.
> Can you check ftp availability with telnet and use 'netstat -n' ?
Yes, telnet showed me my fault -- it was a typo at /etc/hosts with
ip-address.
Thanks for your help! And sorry for the noise.
> Do you have any firewall rules possibly blocking localhost traffic?
> Host appears to use DNS in second case which can provide different IP
> address
> >
> > The host resolves direct and revers just fine.
> >
> > Some additional info (GENERIC-FAST is GENERIC without INVARIANTS/WITNESS):
> > -----
> > % uname -a
> > FreeBSD testbox.bsam.ru 8.0-CURRENT FreeBSD 8.0-CURRENT #0: Thu Feb 21 16:54:25 MSK 2008 root at testbox.bsam.ru:/usr/obj/usr/src/sys/GENERIC-FAST amd64
> > -----
> >
> >
> > Any comments? Thanks!
WBR
--
Boris Samorodov (bsam)
Research Engineer, http://www.ipt.ru Telephone & Internet SP
FreeBSD committer, http://www.FreeBSD.org The Power To Serve
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