zabbix 修改管理员用户密码

mysql> use zabbix
mysql> desc users;
+----------------+---------------------+------+-----+---------+-------+
| Field          | Type                | Null | Key | Default | Extra |
+----------------+---------------------+------+-----+---------+-------+
| userid         | bigint(20) unsigned | NO   | PRI | NULL    |       |
| alias          | varchar(100)        | NO   | UNI |         |       |
| name           | varchar(100)        | NO   |     |         |       |
| surname        | varchar(100)        | NO   |     |         |       |
| passwd         | char(32)            | NO   |     |         |       |
| url            | varchar(255)        | NO   |     |         |       |
| autologin      | int(11)             | NO   |     | 0       |       |
| autologout     | int(11)             | NO   |     | 900     |       |
| lang           | varchar(5)          | NO   |     | en_GB   |       |
| refresh        | int(11)             | NO   |     | 30      |       |
| type           | int(11)             | NO   |     | 1       |       |
| theme          | varchar(128)        | NO   |     | default |       |
| attempt_failed | int(11)             | NO   |     | 0       |       |
| attempt_ip     | varchar(39)         | NO   |     |         |       |
| attempt_clock  | int(11)             | NO   |     | 0       |       |
| rows_per_page  | int(11)             | NO   |     | 50      |       |
+----------------+---------------------+------+-----+---------+-------+
16 rows in set (0.00 sec)
mysql> select userid,alias,passwd from users;
+--------+-------+----------------------------------+
| userid | alias | passwd                           |
+--------+-------+----------------------------------+
|      1 | Admin | a9289c3c21539e20fd6a060256e30b09 |
|      2 | guest | d41d8cd98f00b204e9800998ecf8427e |
+--------+-------+----------------------------------+
2 rows in set (0.00 sec)

mysql> select userid,alias,passwd from users;
+--------+-------+----------------------------------+
| userid | alias | passwd                           |
+--------+-------+----------------------------------+
|      1 | Admin | a9289c3c21539e20fd6a060256e30b09 |
|      2 | guest | d41d8cd98f00b204e9800998ecf8427e |
+--------+-------+----------------------------------+
2 rows in set (0.00 sec)

mysql> update users set passwd=MD5('123456') where userid=1;#-------->MD5加密
Query OK, 1 row affected (0.04 sec)
Rows matched: 1  Changed: 1  Warnings: 0
mysql> select userid,alias,passwd from users;
+--------+-------+----------------------------------+
| userid | alias | passwd                           |
+--------+-------+----------------------------------+
|      1 | Admin | a9289c3c21539e20fd6a060256e30b09 |
|      2 | guest | d41d8cd98f00b204e9800998ecf8427e |
+--------+-------+----------------------------------+
2 rows in set (0.00 sec)

mysql> update users set passwd=MD5('123456') where userid=1;
Query OK, 1 row affected (0.04 sec)
Rows matched: 1  Changed: 1  Warnings: 0