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Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!news.rmit.EDU.AU!news.unimelb.EDU.AU!munnari.OZ.AU!spool.mu.edu!newspump.sol.net!newsfeeds.sol.net!uwm.edu!cs.utexas.edu!howland.erols.net!news.mathworks.com!uunet!in3.uu.net!150.124.136.2!wang!usenet From: "Richard Noel" <rnoel@wang.com> Newsgroups: comp.unix.bsd.bsdi.misc Subject: FTP server - version wu-2.4(4) Date: 20 Jan 1997 15:12:55 GMT Organization: Wang Laboratories Lines: 42 Message-ID: <01bc06e4$0b2f7160$06837c96@ren05329.corp.wang.com> NNTP-Posting-Host: noel.wang.com X-Newsreader: Microsoft Internet News 4.70.1155 Xref: euryale.cc.adfa.oz.au comp.unix.bsd.bsdi.misc:5653 Hello, Within the past week or so, something happened so that Microsoft ftp clients on our internal net that use our ftp gateway to establish ftp sessions with Internet servers have been getting "500 command not understood" in response to certain commands such as "pwd" and "mkdir". The ftp gateway is running BSD/OS ver 2.0.1 and ftpd ver wu-2.4(4). If I enter debug mode on the client, I can see that the command actually sent *from* the client is "XPWD" or "XMKD". Running ftpd in debug mode didn't help at all as it appears (I'm guessing here) that if the session is passing through to a server on the Internet, another binary named (on our server) ftp-gw is instead used. I can't figure out how to get that process to run in debug mode, if that's at all possible; ftp-gw -? returned "illegal option". I initially thought that perhaps the X prefix was causing the problem but executing remotehelp from the ftp client (while connected to any one of several Internet sites, including ftp.bsdi.com) shows that the command XPWD is valid. However, man ftpd indicates that several Xcmd commands have been "deprecated". I have not made any changes to either BSD/OS or ftpd on the gateway machine in quite some time, so I'm confused as to why this started happening. I've verified that the ftp client that comes with Win95 and WFW3.11 both have this problem while the ftp clients from several different flavors of UNIX and the ftp client that comes with Novell LWP do not have this problem. As well, the Microsoft ftp clients do not have problems with any internal servers, just when trying to use the ftp gateway (ftpd wu-2.4(4)) to get out to the Internet. Does anyone have any insight as to what the problem might be ? Thanks much, Richard noel@wang.com P.S. I'm not asking for and do not expect to receive any help from bsdi.misc for the Microsoft ftp client which I don't believe, because it worked with the gateway until just recently, to be the source of the problem.