2 Comments on “which of the following TCP ports by default?”

1. Fundamental Kid says:

   January 24, 2017 at 1:15 pm

   The answer is ports 989 & 990

   
   
   
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2. Super_Mario says:

   May 14, 2018 at 7:18 pm

   FTP/S commonly runs on port 990 by default and sometimes on port 21, the primary difference being that port 990 is an Implicit FTP/S, and port 21 is an Explicit FTP/S.
   If a client connects to an FTP/S server on port 990, the assumption is that the client intends to perform SSL.
   So FTPS uses ports 989 and 990 by default.

   
   
   
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