Re: Free TCP/IP port numbers?

From	deloptes <deloptes@gmail.com>
Newsgroups	linux.debian.user
Subject	Re: Free TCP/IP port numbers?
Date	2017-10-01 10:00 +0200
Message-ID	<uvHkl-7HL-15@gated-at.bofh.it> (permalink)
References	<uvB5f-3Fc-1@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Victor Porton wrote:

> We are going to install a range of software on a Debian Linux
> installation. Because we run the same software (such as Celery) several
> times, we need to use port numbers different than the standard Debian port
> numbers chosen by default (because we can't run more than one instance of
> a server with the same port, and thus using the standard port number for
> all servers would fail).
> 
> How to choose TCP/IP port numbers for server software we run in such a way
> that they don't clash with "standard" Debian port numbers?
> 
> In Debian are there any ranges of port numbers dedicated (so that they
> wouldn't clash with "standard" that is used by default port numbers) for
> servers configured by users?
> 
> Note that we run (at least some of) our software not as root, so we can't
> use ports below 1024.

It is your machine, so the question is, is this machine dedicated to
specific service, or you intend to install some other application later.

I usually take the ports that I want - you don't need to ask for permission
to do so.

I prefer using 8000 - 30000 range for servers and from 30001 - 61000 for
client communication.

You can reserve this range for yourself on the machine

# sysctl net.ipv4.ip_local_port_range
net.ipv4.ip_local_port_range = 32768    60999

This way all client communication will  use this range and you can configure
the servers to use therange 8000 - 32000

Forget the crap service list - just take into account what apps you are
running

regards

Thread

Free TCP/IP port numbers? Victor Porton <porton@narod.ru> - 2017-10-01 03:20 +0200
  Re: Free TCP/IP port numbers? "Alexander V. Makartsev" <avbetev@gmail.com> - 2017-10-01 03:30 +0200
    Re: Free TCP/IP port numbers? Victor Porton <porton@narod.ru> - 2017-10-01 04:00 +0200
      Re: Free TCP/IP port numbers? "Alexander V. Makartsev" <avbetev@gmail.com> - 2017-10-01 04:30 +0200
        Re: Free TCP/IP port numbers? Gene Heskett <gheskett@shentel.net> - 2017-10-01 07:30 +0200
          Re: Free TCP/IP port numbers? <tomas@tuxteam.de> - 2017-10-01 09:40 +0200
            Re: Free TCP/IP port numbers? tomas@tuxteam.de - 2017-10-01 09:50 +0200
            Re: Free TCP/IP port numbers? Gene Heskett <gheskett@shentel.net> - 2017-10-01 13:50 +0200
              Re: Free TCP/IP port numbers? Reco <recoverym4n@gmail.com> - 2017-10-01 14:20 +0200
                Re: Free TCP/IP port numbers? <tomas@tuxteam.de> - 2017-10-01 15:00 +0200
                Re: Free TCP/IP port numbers? Gene Heskett <gheskett@shentel.net> - 2017-10-01 15:50 +0200
                Re: Free TCP/IP port numbers? <tomas@tuxteam.de> - 2017-10-01 16:20 +0200
                Re: Free TCP/IP port numbers? Reco <recoverym4n@gmail.com> - 2017-10-01 16:50 +0200
                Re: Free TCP/IP port numbers? rhkramer@gmail.com - 2017-10-02 23:10 +0200
                Re: Free TCP/IP port numbers? Greg Wooledge <wooledg@eeg.ccf.org> - 2017-10-02 23:10 +0200
                Re: Free TCP/IP port numbers? Reco <recoverym4n@gmail.com> - 2017-10-02 23:30 +0200
                Re: Free TCP/IP port numbers? Gene Heskett <gheskett@shentel.net> - 2017-10-01 16:50 +0200
                Re: Free TCP/IP port numbers? <tomas@tuxteam.de> - 2017-10-01 17:00 +0200
                Re: Free TCP/IP port numbers? Gene Heskett <gheskett@shentel.net> - 2017-10-01 17:40 +0200
                Grep's "ignore binry files" option [was: Free TCP/IP port numbers?] <tomas@tuxteam.de> - 2017-10-01 18:00 +0200
                Re: Grep's "ignore binry files" option [was: Free TCP/IP port numbers?] Gene Heskett <gheskett@shentel.net> - 2017-10-01 18:40 +0200
              Re: Free TCP/IP port numbers? <tomas@tuxteam.de> - 2017-10-01 14:50 +0200
              Re: Free TCP/IP port numbers? Dan Purgert <dan@djph.net> - 2017-10-02 12:30 +0200
      Re: Free TCP/IP port numbers? shawn wilson <ag4ve.us@gmail.com> - 2017-10-01 04:40 +0200
        Re: Free TCP/IP port numbers? Dan Purgert <dan@djph.net> - 2017-10-02 12:30 +0200
          Re: Free TCP/IP port numbers? Michael Stone <mstone@debian.org> - 2017-10-02 12:50 +0200
  Re: Free TCP/IP port numbers? deloptes <deloptes@gmail.com> - 2017-10-01 10:00 +0200
  Re: Free TCP/IP port numbers? <tomas@tuxteam.de> - 2017-10-01 15:00 +0200
  Re: Free TCP/IP port numbers? Victor Porton <porton@narod.ru> - 2017-10-01 15:00 +0200
    Re: Free TCP/IP port numbers? Michael Stone <mstone@debian.org> - 2017-10-01 15:20 +0200
    Re: Free TCP/IP port numbers? Nicholas Geovanis <nickgeovanis@gmail.com> - 2017-10-04 16:50 +0200
  Re: Free TCP/IP port numbers? Gene Heskett <gheskett@shentel.net> - 2017-10-02 23:00 +0200
    Re: Free TCP/IP port numbers? Reco <recoverym4n@gmail.com> - 2017-10-02 23:30 +0200

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