default /etc/hosts and ftp

Alexander V. Chernikov admin at su29.net
Fri Feb 22 16:19:02 UTC 2008


Boris Samorodov wrote:
> Hello List!
> 
> 
> 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' ?
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




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