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Re: [TEKNIK] port 443 - adgang nægtet



Egon Andersen skrev:

Jeg sidder lige og roder med at forbinde en server der kører under en almindelig bruger til port 443 (altså default porten for https).

Det kan du ikke på et unix-system. Porte op til/med nummer 1024 er reserveret bruger nummer 0.

Er der nogen god forklaring på hvorfor de 'lave' port-numre kræver root privilegier, når dette ikke gælder de høje port-numre?

Det gør at systemadministratoren kan sikre sig at der ikke er tilfældige brugere, der foregiver at køre systemtjenester. Ellers kunne en tilfældig bruger for eksempel score SSH's port, og opsnappe andre brugeres adgangskoder.

Jacob Sparre Andersen
--
Jacob Sparre Andersen Research & Innovation
Vesterbrogade 148K, 1. th.
1620 København V
Danmark

Telefon: +45 21 49 08 04
E-post:  sslug@sslug
Websted: http://www.jacob-sparre.dk/


 
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