Merge pull request #211735 from GennadNY/gennady89

Update concepts-networking.md

Author: prmerger-automator[bot]

articles/postgresql/flexible-server/concepts-networking.md

@@ -117,7 +117,7 @@ Here are some limitations for working with virtual networks:
 * A flexible server doesn't support Azure Private Link. Instead, it uses virtual network injection to make the flexible server available within a virtual network. 
 
 > [!IMPORTANT]
-> Azure Resource Manager supports  ability to lock resources, as a security control. Resource locks are applied to the resource, and are effective across all users and roles. There are two types of resource lock: CanNotDelete and ReadOnly. These lock types can be applied either to a Private DNS zone, or to an individual record set. Applying a lock of either type against Private DNS Zone or individual record set may interfere with ability of Azure Database for PostgreSQL - Flexible Server service to update DNS records and cause issues during important operations on DNS, such as High Availability failover from primary to secondary.  Please make sure you are not utilizing DNS private zone or record locks when utilizing High Availability features with Azure Database for PostgreSQL - Flexible Server. 
+> Azure Resource Manager supports  ability to lock resources, as a security control. Resource locks are applied to the resource, and are effective across all users and roles. There are two types of resource lock: CanNotDelete and ReadOnly. These lock types can be applied either to a Private DNS zone, or to an individual record set. Applying a lock of either type against Private DNS Zone or individual record set may interfere with ability of Azure Database for PostgreSQL - Flexible Server service to update DNS records and cause issues during important operations on DNS, such as High Availability failover from primary to secondary. For these reasons,  please make sure you are not utilizing DNS private zone or record locks when utilizing High Availability features with Azure Database for PostgreSQL - Flexible Server. 
 
 ## Public access (allowed IP addresses)