Changes between Version 1 and Version 2 of ThirdPartyDataTransfer


Ignore:
Timestamp:
13/04/06 10:33:10 (14 years ago)
Author:
spascoe
Comment:

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  • ThirdPartyDataTransfer

    v1 v2  
    3131 
    3232}}} 
     33 
     34I.e. One server is put in passive mode and one in active mode.  A good explanation of the difference can be found [http://slacksite.com/other/ftp.html here].  GridFTP states support for 3rd-party transfer in the specification.  In practice this means that both passive and active FTP commands are extended to support striping across multiple data ports. 
     35 
     36On a casual read of the specifications it appears that provided a server supports active mode, the main issue is with the client.  It must support making control connections to 2 servers simultaniously  and issueing the necessary PASV, PORT, STOR and RETR commands. 
     37 
     38Unlike GridFTP, bbFTP is not an extension of RFC-959.  However, it claims to support both passive and "non-passive" mode.  Therefore, it may be possible to adapt the client to do 3rd party transfer along the line shown above.  This may be a significant ammount of work and any consideration of it should be balenced against the work required to make GridFTP support NDG Security.