blank.gif (43 bytes)

Church Of The
Swimming Elephant

Search:
4.1.2.6 PASV Command: RFC-959 Section 4.1.2 Connected: An Internet Encyclopedia
4.1.2.6 PASV Command: RFC-959 Section 4.1.2

Up: Connected: An Internet Encyclopedia
Up: Requests For Comments
Up: RFC 1123
Up: 4. FILE TRANSFER
Up: 4.1 FILE TRANSFER PROTOCOL -- FTP
Up: 4.1.2. PROTOCOL WALK-THROUGH
Prev: 4.1.2.5 Data Connection Management: RFC-959 Section 3.3
Next: 4.1.2.7 LIST and NLST Commands: RFC-959 Section 4.1.3

4.1.2.6 PASV Command: RFC-959 Section 4.1.2

4.1.2.6 PASV Command: RFC-959 Section 4.1.2

A server-FTP MUST implement the PASV command.

If multiple third-party transfers are to be executed during the same session, a new PASV command MUST be issued before each transfer command, to obtain a unique port pair.

IMPLEMENTATION:

The format of the 227 reply to a PASV command is not well standardized. In particular, an FTP client cannot assume that the parentheses shown on page 40 of RFC-959 will be present (and in fact, Figure 3 on page 43 omits them). Therefore, a User-FTP program that interprets the PASV reply must scan the reply for the first digit of the host and port numbers.

Note that the host number h1,h2,h3,h4 is the IP address of the server host that is sending the reply, and that p1,p2 is a non-default data transfer port that PASV has assigned.


Next: 4.1.2.7 LIST and NLST Commands: RFC-959 Section 4.1.3

Connected: An Internet Encyclopedia
4.1.2.6 PASV Command: RFC-959 Section 4.1.2

Cotse.Net

Protect yourself from cyberstalkers, identity thieves, and those who would snoop on you.
Stop spam from invading your inbox without losing the mail you want. We give you more control over your e-mail than any other service.
Block popups, ads, and malicious scripts while you surf the net through our anonymous proxies.
Participate in Usenet, host your web files, easily send anonymous messages, and more, much more.
All private, all encrypted, all secure, all in an easy to use service, and all for only $5.95 a month!

Service Details

 
.
www.cotse.com
Have you gone to church today?
.
All pages ©1999, 2000, 2001, 2002, 2003 Church of the Swimming Elephant unless otherwise stated
Church of the Swimming Elephant©1999, 2000, 2001, 2002, 2003 Cotse.com.
Cotse.com is a wholly owned subsidiary of Packetderm, LLC.

Packetderm, LLC
210 Park Ave #308
Worcester, MA 01609