Fatal error: not used for host & quot; 192.168.1.112 & quot;, user & quot; pos

Fatal error: it is not used for host 192.168.1.112. After postgres solves the problem of installing postgresql9.2, QT connects to the database: Cpp Code www.2cto. comQSqlDatabasedbQSqlDatabase: addDatabase (QPSQL, test); db. setDatabaseName (sqlscada); db. setHostName (127.0.0.1); db. setHostName (1

Fatal error: it is not used for host 192.168.1.112. After postgres solves the problem of installing postgresql9.2, QT connects to the database: Cpp Code www.2cto.com QSqlDatabase db = QSqlDatabase: addDatabase (QPSQL, test); db. setDatabaseName (sqlscada); // db. setHostName (127.0.0.1); db. setHostName (1

Fatal error: not used for host "192.168.1.112", user "s" solved

After sql9.2 is installed, QT connects to the database:

Cpp Code www.2cto.com

QSqlDatabase db = QSqlDatabase: addDatabase ("QPSQL", "test ");

Db. setDatabaseName ("sqlscada ");

// Db. setHostName ("127.0.0.1 ");

Db. setHostName ("192.168.1.112 ");

Db. setPort (5432 );

Db. setUserName ("s ");

Db. setPassword ("scada ");

Connect to the Local Machine with 127.0.0.1 OK. If the IP address is specified for connection, an error is returned: Fatal error: not used for host "192.168.1.112", user "postgres ";

Open $ POSTSQL/data/pg_hdb.conf and find

# IPv4 local connections:

Host all 127.0.0.1/32 md5

Add a line of code below:

Host all 192.168.1.112/32 md5

Reconnect. Everything is normal.