Solved

Passive FTP Question

Posted on 2013-11-01
3
258 Views
Last Modified: 2013-11-03
Being a complete idiot regarding FTP, I was wondering what the following means:
227 Entering Passive Mode (23,21,105,227,225,23)

In particular, what do the numbers in parentheses symbolize?
0
Comment
Question by:swlaurie
  • 2
3 Comments
 
LVL 11

Expert Comment

by:N R
Comment Utility
Well I know the first set of numbers are your IP.

23.21.105.227

Somehow the calculation on the last two is a port I believe.
0
 
LVL 16

Accepted Solution

by:
AlexPace earned 500 total points
Comment Utility
Take the 5th number, multiply by 256 and then add the 6th number to get the port where the server is waiting for the client to connect for a passive mode data channel.

(225 * 256) + 23 = 57623
0
 
LVL 16

Expert Comment

by:AlexPace
Comment Utility
If you are opening ports on the firewall be aware that passive mode typically uses a port range so contact the administrator of the FTP site and ask "what is your passive port range?" ... it sounds like a strange question but the FTP admin should be able to answer it.
0

Featured Post

How does your email signature look on mobiles?

Do your employees use mobile devices to reply to emails? With mobile becoming increasingly important to the business world, it is in your best interest to make sure that your email signature looks great across all types of devices.

Join & Write a Comment

When the confidentiality and security of your data is a must, trust the highly encrypted cloud fax portfolio used by 12 million businesses worldwide, including nearly half of the Fortune 500.
Shadow IT is coming out of the shadows as more businesses are choosing cloud-based applications. It is now a multi-cloud world for most organizations. Simultaneously, most businesses have yet to consolidate with one cloud provider or define an offic…
This Micro Tutorial will explain how to export DynamoDB tables in Amazon Web Services.
Internet Business Fax to Email Made Easy - With eFax Corporate (http://www.enterprise.efax.com), you'll receive a dedicated online fax number, which is used the same way as a typical analog fax number. You'll receive secure faxes in your email, fr…

763 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

7 Experts available now in Live!

Get 1:1 Help Now