Error: "Connection reset by Peer"
(Last modified: 21Jan2002)
This document (10060888) is provided subject to the disclaimer at the end of this document.
fact
Novell BorderManager 3.5
bm35c11.exe applied
NetWare 5.1
NW51SP2.EXE applied
symptom
Error: "Connection reset by Peer"
FTP client connection reset by FTP Proxy server
FTP Client gets connection errors when doing an LS of a directory
FTP client cannot list files in a directory
FTP PORT command fails to FTP proxy server
cause
Establish an FTP session through the proxy on TCP port 21. Request data via an FTP LS or GET request, which automatically sends an FTP PORT request to Proxy server. Proxy server, processing the FTP PORT command from the browser, resets TCP connections to the client and origin FTP server.
fix
Apply Proxy.nlm from PXY014.EXE.
FTP data channel setup via the PASV request. Listing a directory that does not contain any files (an empty directory), the FTP server returns a "550 No files Found" message. Subsequent request after the 550 is returned will cause the connection to be reset on both sides because the Proxy servers data request block is still active.
To reproduce:
1. using an active (non PASV) FTP client e.g. from Windows, establish an FTP session to the FTP proxy
2. When putting in the USER information, type
anonymous$ftp.novell.com<CR>
3. You will get prompted for the password on ftp.novell.com next - use your username followed by @ character eg. ncashell@
4. change the directory to one that contains no files (ie. where you get an FTP 550 file not found error) and issue an FTP LIST command via an LS or DIR instruction
5. change the directory to any other directory and reissue an FTP LIST command
6. watch the connections get reset and a message appearing on the browser.
document
| Document Title: | Error: "Connection reset by Peer" |
| Document ID: | 10060888 |
| Solution ID: | NOVL41730 |
| Creation Date: | 05Mar2001 |
| Modified Date: | 21Jan2002 |
| Novell Product Class: | Novell BorderManager Services |
disclaimer
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