mysql> show processlist; #mysql服务器查看有那些主机连进来，并列出它们查什么库+-----+------+-----------+------+---------+------+-------+------------------+| Id  | User | Host      | db   | Command | Time | State | Info             |+-----+------+-----------+------+---------+------+-------+------------------+| 516 | root | localhost | NULL | Query   |    0 | NULL  | show processlist |+-----+------+-----------+------+---------+------+-------+------------------+1 row in set (0.00 sec)

 

[root@bass ~]# ssh 192.168.1.89reverse mapping checking getaddrinfo for bogon [192.168.1.89] failed - POSSIBLE BREAK-IN ATTEMPT!root@192.168.1.89's password: Last login: Sun May  8 04:57:24 2016 from 192.168.1.10[root@v01 ~]# mysql -usx -p -h101.200.xx.xxEnter password: Welcome to the MySQL monitor.  Commands end with ; or \g.Your MySQL connection id is 517Server version: 5.5.40-log MySQL Community Server (GPL)Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.Oracle is a registered trademark of Oracle Corporation and/or itsaffiliates. Other names may be trademarks of their respectiveowners.Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.mysql> show databases;+--------------------+| Database           |+--------------------+| information_schema || sx                 || test               |+--------------------+3 rows in set (0.01 sec)

 

mysql> show processlist;+-----+------+----------------------+------+---------+------+-------+------------------+| Id  | User | Host                 | db   | Command | Time | State | Info             |+-----+------+----------------------+------+---------+------+-------+------------------+| 516 | root | localhost            | NULL | Query   |    0 | NULL  | show processlist || 517 | sx   | 118.194.xxx.xxx:xxx | NULL | Sleep   |   28 |       | NULL             |+-----+------+----------------------+------+---------+------+-------+------------------+2 rows in set (0.00 sec)

 

mysql> use mysql;Database changedmysql> show tables;+---------------------------+| Tables_in_mysql           |+---------------------------+| columns_priv              || db                        || event                     || func                      || general_log               || help_category             || help_keyword              || help_relation             || help_topic                || host                      || ndb_binlog_index          || plugin                    || proc                      || procs_priv                || proxies_priv              || servers                   || slow_log                  || tables_priv               || time_zone                 || time_zone_leap_second     || time_zone_name            || time_zone_transition      || time_zone_transition_type || user                      |+---------------------------+24 rows in set (0.01 sec)mysql> show processlist;+-----+------+----------------------+-------+---------+------+-------+------------------+| Id  | User | Host                 | db    | Command | Time | State | Info             |+-----+------+----------------------+-------+---------+------+-------+------------------+| 516 | root | localhost            | mysql | Query   |    0 | NULL  | show processlist || 517 | sx   | 118.194.xxx.xxx:2373 | NULL  | Sleep   |  297 |       | NULL             |+-----+------+----------------------+-------+---------+------+-------+------------------+2 rows in set (0.00 sec)