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https://dev.mysql.com/doc/refman/8.0/en/connecting-disconnecting.html
To connect to the server, you usually need to provide a MySQL user name when you invoke mysql and, most likely, a password. Contact your administrator to find out what connection parameters you should use to connect (that is, what host, user name, ...If the server runs on a machine other than the one where you log in, you must also specify a host ...
https://dev.mysql.com/doc/refman/8.0/en/ipv6-local-connections.html
The following procedure shows how to configure MySQL to permit IPv6 connections by clients that connect to the local server using the ::1 local host address. Start the MySQL server with an appropriate bind_address setting to permit it to accept ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-tcp-definition-direct.html
Setting up a cluster using direct connections between data nodes requires specifying explicitly the crossover IP addresses of the data nodes so connected in the [tcp] section of the cluster config.ini file. The use of direct TCP connections between ...In the following example, we envision a cluster with at least four hosts, one each for a management server, an SQL node, and two data ...
https://dev.mysql.com/doc/refman/8.0/en/ipv6-remote-connections.html
The following procedure shows how to configure MySQL to permit IPv6 connections by remote clients. To accept IPv6 connections from clients outside the local network, the server host must have a public address. Start the MySQL server with an ...It ...
https://dev.mysql.com/doc/refman/8.0/en/connection-control.html
MySQL Server includes a plugin library that enables administrators to introduce an increasing delay in server response to connection attempts after a configurable number of consecutive failed attempts. The plugin library contains two plugins: ...
https://dev.mysql.com/doc/refman/8.0/en/connection-management.html
This includes a description of the available connection interfaces, how the server uses connection handler threads, details about the administrative connection interface, and management of DNS lookups.
https://dev.mysql.com/doc/refman/8.0/en/error-lost-connection.html
Usually it indicates network connectivity trouble and you should check the condition of your network if this error occurs frequently. More rarely, it can happen when the client is attempting the initial connection to the server. In this case, if ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-connection-control-table-reference.html
Table 28.8 INFORMATION_SCHEMA Connection-Control Tables Table Name Description CONNECTION_CONTROL_FAILED_LOGIN_ATTEMPTS Current number of consecutive failed connection attempts per account .
https://dev.mysql.com/doc/refman/8.0/en/replication-asynchronous-connection-failover-replica.html
In MySQL 8.0.27 and later, asynchronous connection failover for replicas is activated automatically for a replication channel on a Group Replication primary when you set SOURCE_CONNECTION_AUTO_FAILOVER=1 in the CHANGE REPLICATION SOURCE TO ...The ...
https://dev.mysql.com/doc/refman/8.0/en/replica-connection-thread-states.html
These thread states occur on a replica server but are associated with connection threads, not with the I/O or SQL threads. In MySQL 8.0.26, incompatible changes were made to instrumentation names, including the names of thread stages, containing ...