1
0
mirror of https://github.com/postgres/postgres.git synced 2025-12-06 00:02:13 +03:00
Files
postgres/src/backend/libpq
Bruce Momjian 10c064ce4d Consistently mention 'SELECT pg_reload_conf()' in config files
Previously we only mentioned SIGHUP and 'pg_ctl reload' in
postgresql.conf and pg_hba.conf.
2016-10-25 11:26:15 -04:00
..
2016-10-11 11:26:04 -04:00
2016-01-02 13:33:40 -05:00

src/backend/libpq/README.SSL

SSL
===

>From the servers perspective:


  Receives StartupPacket
           |
           |
 (Is SSL_NEGOTIATE_CODE?) -----------  Normal startup
           |                  No
           |
           | Yes
           |
           |
 (Server compiled with USE_SSL?) ------- Send 'N'
           |                       No        |
           |                                 |
           | Yes                         Normal startup
           |
           |
        Send 'S'
           |
           |
      Establish SSL
           |
           |
      Normal startup





>From the clients perspective (v6.6 client _with_ SSL):


      Connect
         |
         |
  Send packet with SSL_NEGOTIATE_CODE
         |
         |
  Receive single char  ------- 'S' -------- Establish SSL
         |                                       |
         | '<else>'                              |
         |                                  Normal startup
         |
         |
   Is it 'E' for error  ------------------- Retry connection
         |                  Yes             without SSL
         | No
         |
   Is it 'N' for normal ------------------- Normal startup
         |                  Yes
         |
   Fail with unknown

---------------------------------------------------------------------------