Re: default /etc/hosts and ftp

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@xxxxxxxxxxxxxxx:/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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