On Thu, Apr 10, 2003 at 01:21:59AM -0700, Adam Glass wrote:
> [I searched the archives and didn't find this mentioned.]
> 
> Often when trying to install NetBSD by having the installer download
> binary sets from ftp.netbsd.org, I get errors like the following:
> 
>   # ftp -a ftp.netbsd.org 
>   Trying 204.152.184.75...
>   Connected to ftp.netbsd.org.
>   220 ftp.netbsd.org FTP server (NetBSD-ftpd 20020615) ready.
>   331 Guest login ok, type your name as password.
>   230-
>   421 Service not available, remote server has closed connection.
>   ftp: Login failed.
> 
> [The above occurred, of course, after a successful install.]

How many time between the 230 and 421 ?

> 
> If I repeat the command a few times, I can always get in after a
> seemingly random number of retries, anywhere from 1-20 or so.  The
> only thing I can think is that -- unless ftp.netbsd.org is really
> broken, in which case everyone would be shouting about it -- I have
> some sort of broken NAT/ipfilter stuff on the 1.5.3_ALPHA firewall +
> NAT box that sits between the ftping system and the Internet.  (This
> doesn't seem to affect any sites but ftp.netbsd.org, but it does
> affect both lukem ftp and SecureFX ftp sessions to ftp.netbsd.org.)
> 
> These are my NAT rules.  Any obvious mistakes?
> 
>   map fxp0 int.n.e.t/24 -> ext.ad.dr.ess/32 proxy port ftp ftp/tcp 
>   map fxp0 int.n.e.t/24 -> ext.ad.dr.ess/32 portmap tcp/udp 1025:65535
>   map fxp0 int.n.e.t/24 -> ext.ad.dr.ess/32
> 
> Any advice would be much appreciated.

This looks good.

-- 
Manuel Bouyer <bouyer@antioche.eu.org>
     NetBSD: 24 ans d'experience feront toujours la difference
--