[#3586] updated documentation

doc/examples/kea4/all-keys-netconf.json

@@ -342,11 +342,11 @@
                 "parameters": { }
             },
             {
-                // The MySql host backend hook library required for host storage.
+                // The MySQL host backend hook library required for host storage.
                 "library": "/opt/lib/kea/hooks/libdhcp_mysql.so"
             },
             {
-                // The PgSql host backend hook library required for host storage.
+                // The PostgreSQL host backend hook library required for host storage.
                 "library": "/opt/lib/kea/hooks/libdhcp_pgsql.so"
             }
         ],

doc/examples/kea4/all-keys.json

@@ -436,11 +436,11 @@
                 "parameters": { }
             },
             {
-                // The MySql host backend hook library required for host storage.
+                // The MySQL host backend hook library required for host storage.
                 "library": "/opt/lib/kea/hooks/libdhcp_mysql.so"
             },
             {
-                // The PgSql host backend hook library required for host storage.
+                // The PostgreSQL host backend hook library required for host storage.
                 "library": "/opt/lib/kea/hooks/libdhcp_pgsql.so"
             }
         ],

doc/examples/kea4/backends.json

@@ -45,6 +45,13 @@
 //      "retry-on-startup": false,
 //      "connect-timeout": 3
 //  },
+// Since Kea.2.7.4, the libdhcp_mysql.so hook library must be loaded in order to
+// store leases in the MySQL Lease Database Backend.
+// Specify the lease backend hook library location.
+//  {
+//      // the MySQL lease backend hook library required for lease storage.
+//      "library": "/opt/lib/kea/hooks/libdhcp_mysql.so"
+//  },
 
 // 3. PostgreSQL backend. Leases will be stored in PostgreSQL database. Make
 // sure it is up, running and properly initialized. See kea-admin documentation
@@ -66,6 +73,13 @@
 //      "retry-on-startup": false,
 //      "connect-timeout": 3
 //  },
+// Since Kea.2.7.4, the libdhcp_pgsql.so hook library must be loaded in order to
+// store leases in the PostgreSQL Lease Database Backend.
+// Specify the lease backend hook library location.
+//  {
+//      // the PostgreSQL lease backend hook library required for lease storage.
+//      "library": "/opt/lib/kea/hooks/libdhcp_pgsql.so"
+//  },
 
 // Addresses will be assigned with a lifetime of 4000 seconds.
   "valid-lifetime": 4000,

doc/examples/kea4/config-backend.json

@@ -1,6 +1,6 @@
 // This is an example configuration file for the DHCPv4 server in Kea.
 // It demonstrates how to enable Kea Configuration Backend using MySQL.
-// It requires that libdhcp_mysql_cb.so library is available and
+// It requires that libdhcp_mysql.so library is available and
 // optionally libdhcp_cb_cmds.so hook library.
 
 { "Dhcp4":
@@ -23,8 +23,11 @@
     },
 
     // This parameter controls how the server accesses the configuration
-    // database. Currently only one database type is available - "mysql".
-    // It requires that the libdhcp_mysql_cb.so hook library is loaded.
+    // database. Currently only two database types are available - "mysql" and
+    // "postgresql".
+    // Using "mysql" requires that the libdhcp_mysql.so hook library is loaded.
+    // If using "postgresql", then loading libdhcp_pgsql.so hook library is
+    // required.
     "config-control": {
         // A list of database backends to connect to. Currently, it is limited
         // to a single backend.
@@ -57,11 +60,16 @@
 
     // Hooks libraries that enable configuration backend are loaded.
     "hooks-libraries": [
-        // The libdhcp_mysql_cb.so is required to use MySQL Configuration
+        // The libdhcp_mysql.so is required to use MySQL Configuration
         // Backend.
         {
-            "library": "/usr/local/lib/kea/hooks/libdhcp_mysql_cb.so"
+            "library": "/usr/local/lib/kea/hooks/libdhcp_mysql.so"
         }
+        // If using PostgreSQL Configuration Backend, the "libdhcp_pgsql.so" is
+        // required.
+        // {
+        //    "library": "/usr/local/lib/kea/hooks/libdhcp_pgsql.so"
+        // }
         // The libdhcp_cb_cmds.so is optional. It allows for managing the
         // configuration in the database. If this library is not loaded,
         // the configuration can be managed directly using available

doc/examples/kea4/mysql-reservations.json

@@ -69,11 +69,12 @@
     "key-file": "my-key",
     "cipher-list": "AES"
   },
-
+// Since Kea.2.7.4, the libdhcp_mysql.so hook library must be loaded in order to
+// store host reservations in the MySQL Host Database Backend.
 // Specify the host backend hook library location.
   "hooks-libraries": [
     {
-        // the MySql host backend hook library required for host storage.
+        // the MySQL host backend hook library required for host storage.
         "library": "/opt/lib/kea/hooks/libdhcp_mysql.so"
     }
   ],

doc/examples/kea4/pgsql-reservations.json

@@ -67,11 +67,12 @@
        "host": "localhost"
     }
   ],
-
+// Since Kea.2.7.4, the libdhcp_pgsql.so hook library must be loaded in order to
+// store host reservations in the PostgreSQL Host Database Backend.
 // Specify the host backend hook library location.
   "hooks-libraries": [
     {
-        // the PgSql host backend hook library required for host storage.
+        // the PostgreSQL host backend hook library required for host storage.
         "library": "/opt/lib/kea/hooks/libdhcp_pgsql.so"
     }
   ],