All about pg_hba.conf(authentication methods- Postgresql)
pg_hba.conf is the PostgreSQL access policy configuration file, which is located in the /var/lib/pgsql/10/data/ directory (PostgreSQL10) by default. The configuration file has 5 parameters, namely: TYPE (host type), DATABASE (database name), USER (user name), ADDRESS (IP address and mask), METHOD (encryption method) host all all 192.168.109.103/22 md5 host dbName user 192.168.109.106/22 trust Modify the server-side pg_hba.conf file Make the shell can connect to the postgres database secretly: Modify the authentication file $PGDATA/pg_hba.conf, add the following lines, and reload to make the configuration take effect immediately. host pankajconnect postgresql 192.168.8.103/32 trust Reload to take effect: pg_ctl reload -D $PGDATA Examples: 1. Allow local login to the database using PGAdmin3, database address localhost, user user1, database user1db: host user1db user1 127.0.0.1/32 md5 2. Allow 10.1.1.0~10.1.1.255 network segments to log in to the database: host all all 10.1.1.0/24 md5