Re: Unix clients refused, Windows clients allowed...

Tom


This message comes from your ftp client....


strings /usr/bin/ftp | grep Service
421 Service not available, remote server has closed connection


This would imply that your client can't get to your ftpserver - or the ftp
server can't respond back to your unix clients.

You may want to verify your ip stack settings - and verify routing is
consistent with your network topology.

ted keller


On Wed, 21 Apr 2004, Tom Wachs wrote:

> Hi all,
>
>
>
>   I have a server running Solaris 8 and wu-ftpd 2.6.2 (through tcp
> wrappers) that I'm having some trouble with.  I can connect with a
> Windows client, from a Windows command prompt, or from a telnet session
> from a Windows box.  I cannot connect from a *nix ftp client or through
> telnet from a *nix command prompt.  The error message I get from the
> *nix ftp client is:
>
>
>
> 421: Service not available, remote server has closed connection
>
>
>
> TCPWrappers does not log a connection attempt for the *nix clients,
> although it does log connections from the Windows clients.
>
>
>
> I am running the wu-ftpd server from inetd with the following line:
>
>
>
> ftp     stream  tcp     nowait  root    /usr/local/bin/tcpd    in.ftpd
> -a
>
>
>
> A port scan from another *nix machine shows port 21 open for ftp.
>
>
>
> Has anyone seen this type of behaviour before? Can anyone suggest
> something?  I'm running out of ideas.
>
>
>
> Thanks in advance,
>
>
>
> -Tom
>
> ------------------------------------------
>
> C. Thomas Wachs
>
> PAR3 Communications
>
> Phone: 206-902-3944
>
> E-Mail: [email protected]
>
>
>
>  -o)
>   /\
>
>  _\_v
>
>
>
>