show processlist

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 192.168.1.89
reverse 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.xx
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 517
Server 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 its
affiliates. Other names may be trademarks of their respective
owners.

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 changed
mysql> 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)