Ok, I will not waste my time to argue over obvious things. You won't get ports more "default" than from this list. Protocols, ports and service names are registered for a reason. Ex: If you install MySQL server it will be configured to listen on port 3306\tcp by default on any OS, be it Debian, RHEL, or Windows.
On 01.10.2017 06:40, Victor Porton wrote: > Alexander V. Makartsev wrote: > >> There is official list of all registered port numbers: >> https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.txt >> >> You can choose any port that is not in the list, to be sure they won't >> clash. > The list of port numbers you pointed to me is a subset (or at least not a > superset) of the full list used by Debian packages. > > Assuring that my port is not in this IANA list is not enough to ensure that > my port number will not clash with a port number used by a Debian package > (by default). > > So your answer to my question is wrong. > >> On 01.10.2017 06:04, 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.
