mysql> use mysql;
Database changed
mysql> UPDATE user SET password=PASSWORD('123456') WHERE user='root';
ERROR 1054 (42S22): Unknown column 'password' in 'field list'
mysql> update user set authentication_string = PASSWORD('123456') where user = 'root';
Query OK, 1 row affected, 1 warning (0.02 sec)
Rows matched: 1 Changed: 1 Warnings: 1
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
mysql> \s
mysql Ver 14.14 Distrib 5.7.13, for linux-glibc2.5 (x86_64) using EditLine wrapper
Connection id: 62
Current database:
Current user: root@localhost
SSL: Not in use
Current pager: stdout
Using outfile: ''
Using delimiter: ;
Server version: 5.7.13-log MySQL Community Server (GPL)
Protocol version: 10
Connection: Localhost via UNIX socket
Server characterset: utf8
Db characterset: utf8
Client characterset: utf8
Conn. characterset: utf8
UNIX socket: /data/AEData/mysql/data/mysql.sock
Uptime: 46 min 54 sec
Threads: 6 Questions: 6846 Slow queries: 0 Opens: 257 Flush tables: 1 Open tables: 201 Queries per second avg: 2.432
--------------
mysql>
到此， 设置完mysql用户root的密码且确保mysql编码集是utf8, 注意上面， 新版本的mysql.user表里的密码字段是authentication_string
MySQL远程授权
格式如下：
mysql> grant all [privileges] on db_name.table_name to 'username'@'host' identified by 'password';
示例如下：
mysql> grant all privileges on *.* to 'root'@'%' identified by '123456';
Query OK, 0 rows affected, 1 warning (0.04 sec)
mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.00 sec)
mysql>
或用
mysql> grant all on *.* to 'root'@'%' identified by '123456';
到此， 完成了mysql的安装 及配置！！！
附上配置文件:
[client]
loose_default-character-set = utf8
[mysqld]
basedir = /usr/local/mysql
datadir = /data/mysql/data
port = 3306
server_id = 1
socket = /data/mysql/data/mysql.sock
expire_logs_days = 7
innodb_file_per_table
innodb_buffer_pool_size = 2G
innodb_thread_concurrency = 24
innodb_flush_log_at_trx_commit = 1
innodb_log_buffer_size = 32M
innodb_log_file_size = 256M
innodb_log_files_in_group = 3
innodb_max_dirty_pages_pct = 90
innodb_lock_wait_timeout = 120
wait_timeout = 60
interactive_timeout = 7200
skip-name-resolve
character-set-server = utf8
back_log = 50
max_connections = 3000
max_connect_errors = 32
max_allowed_packet = 32M
binlog_cache_size = 8M
max_heap_table_size = 512M
tmp_table_size = 64M
key_buffer_size = 16M
read_buffer_size = 2M
read_rnd_buffer_size = 8M
bulk_insert_buffer_size = 64M
sort_buffer_size = 4M
join_buffer_size = 2M
thread_cache_size = 64
thread_stack = 192K
query_cache_type = 1
query_cache_size = 256M
query_cache_limit = 2M
ft_min_word_len = 2
default_storage_engine = INNODB
#default_table_type = INNODB
transaction_isolation = REPEATABLE-READ
lower_case_table_names = 1
#log_slow_queries
slow_query_log
long_query_time = 2
log-short-format
myisam_sort_buffer_size = 128M
myisam_max_sort_file_size = 10G
myisam_repair_threads = 1
[mysqldump]
quick
max_allowed_packet = 32M
routines
single-transaction
hex-blob
skip-comments
complete-insert
skip-disable-keys
skip-add-locks
skip-lock-tables
[isamchk]
key_buffer = 512M
sort_buffer_size = 512M
read_buffer = 8M
write_buffer = 8M
[myisamchk]
key_buffer = 512M
sort_buffer_size = 512M
read_buffer = 8M
write_buffer = 8M
[mysqlhotcopy]
interactive-timeout
# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES