I am trying to configure ssl certificate for postgreSQL server. I have created a certificate file (server.crt) and key (server.key) in data directory and update the parameter SSL to "on" to enable secure connection.
I just want only the server to be authenticated with server certificates on the client side and dont require the authenticity of client at server side. I am using psql as a client to connect and execute the commands.
I am using PostgreSQL 8.4 and linux. I tried with the below command to connect to server with ssl enabled
psql "postgresql://localhost:2345/postgres?sslmode=require"
but I am getting
psql: invalid connection option "postgresql://localhost:2345/postgres?sslmode"
What am doing wrong here? Is the way I am trying to connect to server with ssl mode enabled is correct? Is it fine to authenticate only server and not the client ?
Please help me out.
psql below 9.2 does not accept this URL-like syntax for options.
The use of SSL can be driven by the sslmode=value option on the command line or the PGSSLMODE environment variable, but the default being prefer, SSL connections will be tried first automatically without specifying anything.
Example with a conninfo string (updated for psql 8.4)
psql "sslmode=require host=localhost dbname=test"
Read the manual page for more options.
psql --set=sslmode=require -h localhost -p 2345 -U thirunas \
-d postgres -f test_schema.ddl
psql "sslmode=require host=localhost port=2345 dbname=postgres" --username=some_user
According to the postgres psql documentation, only the connection parameters should go in the conninfo string(that's why in our example, --username is not inside that string)
psql -h <host> -p <port> -U <user> -d <db>
and update /var/lib/pgsql/10/data/pg_hba.conf to change the auth method to cert. Check the following link for more information:
Found the following options useful to provide all the files for a self signed postgres instance
psql "host={hostname} sslmode=prefer sslrootcert={ca-cert.pem} sslcert={client-cert.pem} sslkey={client-key.pem} port={port} user={user} dbname={db}"
来源：https://stackoverflow.com/questions/14021998/using-psql-to-connect-to-postgresql-in-ssl-mode