process: Server - ssh and scp                                    rev 24 nov 2018
authorized_keys and known_hosts files 

.......................................................
info:

  The authorized_keys file - the key of the user
       lets the server authenticate the user.
       authorized_key file is maintained on the server 

  The known_hosts file - the key of the machine
       lets the client authenticate the server, 
         to check that it isn't connecting to an impersonator. 
       known_hosts file is maintained on client 

  * What is the difference between authorized_keys and known_hosts file for SSH?
      good explanations and details in two answers.



.........................
Is scp unsafe? Should it be replaced with sftp?

  - https://unix.stackexchange.com/questions/571293/is-scp-unsafe-should-it-be-replaced-with-sftp
    [mar 2020 / retr 22 oct 2020]


.......................................................
documentation:

  * 
      https://httpd.apache.org/docs/current/mod/mod_rewrite.html#rewriterule




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