× The internal search function is temporarily non-functional. The current search engine is no longer viable and we are researching alternatives.
As a stop gap measure, we are using Google's custom search engine service.
If you know of an easy to use, open source, search engine ... please contact support@midrange.com.


  1.  Home
  2. MIDRANGE-L
  3. February 2026

Re: FTP environment variable

Hello Steve,

Am 12.02.2026 um 17:58 schrieb Steve McKay <samckay1@xxxxxxxxx>:

In this example, only 5 ports are available for FTP which means you are limited to 5 concurrent FTP sessions.

This is wrong. It means that you are limited to 5 concurrent *transfers*. Remember, FTP opens a separate TCP connection for each data transfer. Put/get as well as ls!

Is anyone using this environment variable? Is there any impact to your operation? Any specific issues that you saw? Any tips or caveats?


Can't answer your precise questions. I assume this is to counter some "special" cases of firewall-foobar which don't/can't inspect the initial port 21 connection of FTP for the dynamically derived data port. FTP/S (TLS encrypted FTP) comes to mind.

:wq! PoC



As an Amazon Associate we earn from qualifying purchases.

This thread ...
Follow-Ups:
Replies:
Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2026 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.