login about faq

Hi,

Please let me know, what is the inbound port range that chilkat FTPS uses in the Client machine.

Thanks SUGI

asked Jul 03 '13 at 15:10

SUGI's gravatar image

SUGI
1555


Chilkat FTPS is used for the client side of the FTP connections (just like the popular FileZilla). It used one outgoing connection for the control channel (sending commands, receiving OK/Error responsed) and one for sending and receiving data.

Most FTPS servers are set to receive commands on port 990 or 21 (but it can be anything). Your firewall probably allows this traffic (firewalls do not care about OUTGOING traffic).

The data connection depends on how you set the Passive property. If it is on, the client (your program) opens another connection to the ftp server. Again, the firewall will not mind (it is an outgoing connection). If the Passive property is off, you have what is called an Active connection. The FTP server opens the data connection to the client, most firewalls find this highly suspect and will block the connection or prompt the user if it should be allowed.

Anyway, look at the ActivePortRange start and end properties and the Passive property of CkFtp. I found some more background info here: http://serverfault.com/questions/10807/what-firewall-ports-do-i-need-to-open-when-using-ftps

link

answered Jul 04 '13 at 02:31

Gert's gravatar image

Gert ♦
629141824

Your answer
toggle preview

Follow this question

By Email:

Once you sign in you will be able to subscribe for any updates here

By RSS:

Answers

Answers and Comments

Markdown Basics

  • *italic* or __italic__
  • **bold** or __bold__
  • link:[text](http://url.com/ "title")
  • image?![alt text](/path/img.jpg "title")
  • numbered list: 1. Foo 2. Bar
  • to add a line break simply add two spaces to where you would like the new line to be.
  • basic HTML tags are also supported

Tags:

×14
×2
×1

Asked: Jul 03 '13 at 15:10

Seen: 866 times

Last updated: Jul 04 '13 at 02:31

powered by OSQA