Hi Amos, >Von: squid-users [mailto:squid-users-bounces@xxxxxxxxxxxxxxxxxxxxx] Im Auftrag von Amos Jeffries >>On 5/04/2016 9:08 p.m., Axel.Eberhardt@xxxxxxxxxxxxx wrote: >> Hello, >> >> Maybe someone can give me a hint :-) >> >> I try to enable the Native ftp proxying. >> The documentation I have found is: >> http://wiki.squid-cache.org/Features/FtpRelay >> >> But there is no example for this. Also in the Mail Archives I was not able to find a hint. >> >> I have configured the ftp proxy with parameter: >> ftp_port 21 >> >AFAIK that port is intended either for use as above when the Squid IP address or hostname is given to the client FTP tool as the FTP server >IP/host. Yes, that is correct. But I'am not sure if this is the only necessary option. Maybe I have to configure more options. > Or when intercepting port 21 traffic - with the 'intercept' option on the port config line. >It is still a new / experimental and rarely used feature so YMMV. ......................... >> Now my problem. >> >> I am able to connect via ftp client to the squid. >> Also the login will be correct: >> example: anonymous@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx >> >> But after a command which use a data channel the connection fails: >> 421 Service not available, remote server has closed connection >> >> >> I try a tcpdump but I cannot find a failure. >> The only different between a native ftp session and a connection over the squid is a missing TCP ACK after the last ftp data package. >> >Um, missing ACK on which of the four connections involved? > and from which of the three software involved? I have traced the network interface at the squid server. The ftp connection was established from localhost. So I cannot see the traffic between squid and ftp client. The missing ACK I have seen comes from the ftp server. Maybe the ftp server answer is different between 'ftp over http' and ftp. But this issue is similar to different ftp servers. >Amos Axel _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users
