Mysql Server encoding settings

After mysql is installed, the server uses lat1 encoding by default.
 
The procedure is as follows:
 
Startup method:/etc/init. d/mysql. server start
 
Effect:
 
Database changed
Mysql> status
--------------
Mysql Ver 14.12 Distrib 5.0.77, for redhat-linux-gnu (x86_64) using readline 5.1
 
Connection id: 8
Current database: demodb
Current user: root @ localhost
SSL: Not in use
Current pager: stdout
Using outfile :''
Using delimiter :;
Server version: 5.5.21 MySQL Community Server (GPL)
Protocol version: 10
Connection: Localhost via UNIX socket
Server characterset: latin1
Db characterset: utf8
Client characterset: latin1
Conn. characterset: latin1
UNIX socket:/var/lib/mysql. sock
Uptime: 33 sec
 
Threads: 7 Questions: 137 Slow queries: 0 Opens: 83 Flush tables: 1 Open tables: 76 Queries per second avg: 4.151
--------------
 
Mysql>
 
 
Startup method:/etc/init. d/mysql. server start -- character-set-server = utf8
 
Effect:
Mysql> use demodb;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with-
 
Database changed
Mysql> status;
--------------
Mysql Ver 14.12 Distrib 5.0.77, for redhat-linux-gnu (x86_64) using readline 5.1
 
Connection id: 4
Current database: demodb
Current user: root @ localhost
SSL: Not in use
Current pager: stdout
Using outfile :''
Using delimiter :;
Server version: 5.5.21 MySQL Community Server (GPL)
Protocol version: 10
Connection: Localhost via UNIX socket
Server characterset: utf8
Db characterset: utf8
Client characterset: latin1
Conn. characterset: latin1
UNIX socket:/var/lib/mysql. sock
Uptime: 1 min 15 sec
 
Threads: 4 Questions: 131 Slow queries: 0 Opens: 84 Flush tables: 1 Open tables: 77 Queries per second avg: 1.746
--------------
 
Mysql>
 
In this way, the encoding parameter must be specified at each startup. Otherwise, the server uses the default lat1 encoding.
 
 
Another method is:
 
Mysql> set character_set_server = utf8;
 
I also tried this method. No, but after logging on to the client again, I restored the original encoding. The reason is very simple. It is not utf8 encoding used when the system is started.
 
 
The permanent solution is to modify the configuration file.
 
# Vim/etc/my. cnf
 
The content is as follows:
[Mysqld]
Datadir =/var/lib/mysql
Socket =/var/lib/mysql. sock
User = mysql
 
# Add the following red text
Character-set-server = utf8
 
 
 
# Default to using old password format for compatibility with mysql 3.x
# Clients (those using the mysqlclient10 compatibility package ).
Old_passwords = 1
 
[Mysqld_safe]
Log-error =/var/log/mysqld. log
Pid-file =/var/run/mysqld. pid
 
 
 
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