Velocity Reviews - Computer Hardware Reviews

Velocity Reviews > Newsgroups > Programming > ASP .Net > Passive mode

Reply
Thread Tools

Passive mode

 
 
jaems
Guest
Posts: n/a
 
      02-18-2008
Please can someone explain the significance of selecting passive mode when
connecting with FTP in VS 2005 or 2008

Is selecting it likely to prevent VS2008 repeatedly downloading he same
files when I change page?

Jaez

 
Reply With Quote
 
 
 
 
bruce barker
Guest
Posts: n/a
 
      02-18-2008
ftp use two tcp/ip connections, one for traffic each way. in active (the
original ftp mode) the client opens one, and the server opens the other.
this required the client to have a port open thru the firewall, so
passive mode was added. in this mode the client opens both connection to
the server. after the connections are established, there is no difference.

-- bruce (sqlwork.com)

jaems wrote:
> Please can someone explain the significance of selecting passive mode
> when connecting with FTP in VS 2005 or 2008
>
> Is selecting it likely to prevent VS2008 repeatedly downloading he same
> files when I change page?
>
> Jaez

 
Reply With Quote
 
 
 
 
Scott Roberts
Guest
Posts: n/a
 
      02-19-2008
Technically, the two ports are for "command" and "data" and are not
directional. But yes, passive mode allows the client to initiate both
connections which alleviates many firewall issues. Selection of "passive"
mode has no effect beyond establishing the "data" connection (assuming, of
course, that both client & server support passive mode).

http://slacksite.com/other/ftp.html


"bruce barker" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> ftp use two tcp/ip connections, one for traffic each way. in active (the
> original ftp mode) the client opens one, and the server opens the other.
> this required the client to have a port open thru the firewall, so passive
> mode was added. in this mode the client opens both connection to the
> server. after the connections are established, there is no difference.
>
> -- bruce (sqlwork.com)
>
> jaems wrote:
>> Please can someone explain the significance of selecting passive mode
>> when connecting with FTP in VS 2005 or 2008
>>
>> Is selecting it likely to prevent VS2008 repeatedly downloading he same
>> files when I change page?
>>
>> Jaez


 
Reply With Quote
 
 
 
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
IIS FTP and Cisco PIX: Passive mode fails Arterion Cisco 0 11-09-2007 12:04 AM
perl Net::FTP vs Ncftp passive mode justme Perl Misc 0 04-18-2005 03:02 PM
BGP peer passive mode Ivan Ostreš Cisco 8 12-01-2004 07:30 AM
Net::FTP and Passive mode problems Hostile17 Perl Misc 6 10-21-2004 03:37 PM
Safe Mode (?) - It is meant to be normal mode but looks like safe mode English Patient Computer Support 3 10-03-2004 11:10 PM



Advertisments