New Era wrote: > So inserting a high value into PasvPortRange may be a > solution(start 16384 and PasvPortRange= 40000), but if > other applications randomly uses ports > in this range, what will be the behaviour of the > ftpserver I mean, if x application uses port 16666 and > when ftpserver also wants to open 16666, it gets an > error, in this error case does it simply increases > port number to 16667 or simply fails.
The source code should give you the answer. > > Another question is there a simple way under windows > to reserve some ports to the use of an application, > Could I say to windows that ports 16300-16400 are > reserved for ftpserver and do not allow other > applications open any port in this range even if > ftpserver is not using that port yet?. I don't think so. However a FTP server could open multiple listening sockets and attach them to clients as needed (actually not possible with the FTP server component). Arno Garrels > > --- Arno Garrels <[EMAIL PROTECTED]> wrote: > >> Marc wrote: >>> With what I have see with the time, one port is skip for each >>> transaction. so with the range you have, only 2 transactions >> can be done. >>> Windows keep the port open for some time, so you come at the end with no >>> more port to do transaction. >> >> Well, a closed socket remains in TIME_WAIT state for >> a while until it is >> destroyed by Windows, this discussion is not new. >> But I don't think >> that those sockets use/block a port while in that >> state. You can do a simple >> test, set PortRange to 1 and run the tool TCPView >> from Sysinternals (it >> updates the view of open sockets dynamically). >> Now connect and RETR or NLST to open a data >> connection in passive mode >> several times. In TCPView you will see sockets in >> TIMW_WAIT state however >> it's no problem to establish a new data connection. >> I checked that yesterday >> on W2K. >> >> --- >> Arno Garrels [TeamICS] >> >> >> >>> Even with a bigger range like 100 ports, you >>> can easily come to with no free port just by checking some directory >>> just because this will use a port for each send. >>> >>> The PasvPortRangeStart set the start >>> the max set the max and when the server can't use any port, this give >>> you the No available PASV ports. >>> >>> HTH >>> >>> >>> Marc >>> TYPSoft >>> http://www.typsoft.com >>> >>> At 03:50 2005-11-09 +0000, you wrote: >>>> There is only one client, this client connects to >>>> server checks some files and disconnects at some >>>> specified intervals(polling). So In this case the >>>> number 5 must be sufficient. PasvPortRangeStart >> is >>>> default 16384. Does this means that the >> application >>>> use 16384..16388.. If any port in this range is >> in >>>> use, then application fails or it is exceeds this >>>> 16388 limit... >>>> >>>>>> I ran ftpserver program, and the clients in >> passive >>>>>> mode but after a while constantly I am getting >> No >>>>>> available PASV ports error. >> -- >> To unsubscribe or change your settings for TWSocket >> mailing list >> please goto >> http://www.elists.org/mailman/listinfo/twsocket >> Visit our website at http://www.overbyte.be >> > > > > > > > ___________________________________________________________ > Yahoo! Messenger - NEW crystal clear PC to PC calling worldwide with > voicemail http://uk.messenger.yahoo.com -- To unsubscribe or change your settings for TWSocket mailing list please goto http://www.elists.org/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
