mysql5.7 install

mysql 安装

# uninstall mariadb
rpm -qa|grep -i mariadb
rpm -e --nodeps mariadb-libs-
# copy mysql packge to /tmp
scp 本地文件 远程用户名@IP地址:/远程存放目录
# uzip mysql.zip 
tar -vxzf /tmp/mysql-5.7.29-linux-glibc2.12-x86_64.tar.gz /usr/local/mysql
# Create mysql group
groupadd -r -g 306 mysql
# Creatr mysql user
useradd -g 306 -r -u 306 mysql
# alter mysql 权限
chown -R mysql.mysql /usr/local/mysql
# 创建数据文件夹和日志文件夹
mkdir /opt/mysqlData
mkdir /opt/mysqlLog
chown -R mysql.mysql /opt/mysqlData
chown -R mysql.mysql /opt/mysqlLog
# vi my.cnf
vi /etc/my.cnf
粘贴以下内容
# Example MySQL config file for medium systems.  
#  
# This is for a system with little memory (32M - 64M) where MySQL plays  
# an important part, or systems up to 128M where MySQL is used together with  
# other programs (such as a web server)  
#  
# MySQL programs look for option files in a set of  
# locations which depend on the deployment platform.  
# You can copy this option file to one of those  
# locations. For information about these locations, see:  
# http://dev.mysql.com/doc/mysql/en/option-files.html  
#  
# In this file, you can use all long options that a program supports.  
# If you want to know which options a program supports, run the program  
# with the "--help" option.  
# The following options will be passed to all MySQL clients  
[client]
default-character-set=utf8
#password   = your_password  
port        = 3306  
socket      = /tmp/mysql.sock   
# Here follows entries for some specific programs  
# The MySQL server  
[mysqld]
character-set-server=utf8
init_connect='SET NAMES utf8'
port        = 3306  
socket      = /tmp/mysql.sock
#mysql 数据目录
datadir=/opt/mysqlData
#mysql错误日志目录
log-error=/opt/mysqlLog/mysql-err.log
user=mysql
#兼容远程连接
default_authentication_plugin=mysql_native_password
skip-external-locking  
key_buffer_size = 16M  
max_allowed_packet = 1M  
table_open_cache = 64  
sort_buffer_size = 512K  
net_buffer_length = 8K  
read_buffer_size = 256K  
read_rnd_buffer_size = 512K  
myisam_sort_buffer_size = 8M  
character-set-server=utf8
sql_mode='NO_AUTO_VALUE_ON_ZERO,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION,PIPES_AS_CONCAT,ANSI_QUOTES'  
init_connect='SET NAMES utf8' 
# Don't listen on a TCP/IP port at all. This can be a security enhancement,  
# if all processes that need to connect to mysqld run on the same host.  
# All interaction with mysqld must be made via Unix sockets or named pipes.  
# Note that using this option without enabling named pipes on Windows  
# (via the "enable-named-pipe" option) will render mysqld useless!  
#   
#skip-networking  

# Replication Master Server (default)  
# binary logging is required for replication  
log-bin=mysql-bin  

# binary logging format - mixed recommended  
binlog_format=mixed  

# required unique id between 1 and 2^32 - 1  
# defaults to 1 if master-host is not set  
# but will not function as a master if omitted  
server-id   = 1  

# Replication Slave (comment out master section to use this)  
#  
# To configure this host as a replication slave, you can choose between  
# two methods :  
#  
# 1) Use the CHANGE MASTER TO command (fully described in our manual) -  
#    the syntax is:  
#  
#    CHANGE MASTER TO MASTER_HOST=<host>, MASTER_PORT=<port>,  
#    MASTER_USER=<user>, MASTER_PASSWORD=<password> ;  
#  
#    where you replace <host>, <user>, <password> by quoted strings and  
#    <port> by the master's port number (3306 by default).  
#  
#    Example:  
#  
#    CHANGE MASTER TO MASTER_HOST='125.564.12.1', MASTER_PORT=3306,  
#    MASTER_USER='joe', MASTER_PASSWORD='secret';  
#  
# OR  
#  
# 2) Set the variables below. However, in case you choose this method, then  
#    start replication for the first time (even unsuccessfully, for example  
#    if you mistyped the password in master-password and the slave fails to  
#    connect), the slave will create a master.info file, and any later  
#    change in this file to the variables' values below will be ignored and  
#    overridden by the content of the master.info file, unless you shutdown  
#    the slave server, delete master.info and restart the slaver server.  
#    For that reason, you may want to leave the lines below untouched  
#    (commented) and instead use CHANGE MASTER TO (see above)  
#  
# required unique id between 2 and 2^32 - 1  
# (and different from the master)  
# defaults to 2 if master-host is set  
# but will not function as a slave if omitted  
#server-id       = 2  
#  
# The replication master for this slave - required  
#master-host     =   <hostname>  
#  
# The username the slave will use for authentication when connecting  
# to the master - required  
#master-user     =   <username>  
#  
# The password the slave will authenticate with when connecting to  
# the master - required  
#master-password =   <password>  
#  
# The port the master is listening on.  
# optional - defaults to 3306  
#master-port     =  <port>  
#  
# binary logging - not required for slaves, but recommended  
#log-bin=mysql-bin  

# Uncomment the following if you are using InnoDB tables  
#innodb_data_home_dir = /usr/local/mysql/data  
#innodb_data_file_path = ibdata1:10M:autoextend  
#innodb_log_group_home_dir = /usr/local/mysql/data  
# You can set .._buffer_pool_size up to 50 - 80 %  
# of RAM but beware of setting memory usage too high  
#innodb_buffer_pool_size = 16M  
#innodb_additional_mem_pool_size = 2M  
# Set .._log_file_size to 25 % of buffer pool size  
#innodb_log_file_size = 5M  
#innodb_log_buffer_size = 8M  
#innodb_flush_log_at_trx_commit = 1  
#innodb_lock_wait_timeout = 50  

[mysqldump]  
quick  
max_allowed_packet = 16M  

[mysql]  
no-auto-rehash  
# Remove the next comment character if you are not familiar with SQL  
#safe-updates  
default-character-set=utf8   

[myisamchk]  
key_buffer_size = 20M  
sort_buffer_size = 20M  
read_buffer = 2M  
write_buffer = 2M  

[mysqlhotcopy]  
interactive-timeout


# 制作启动文件
cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld
vi /etc/init.d/mysqld
将basedir = 改为 basedir = /usr/local/mysql
将datadir = 改为 datadir = /opt/mysqlData

# 给予/etc/init.d/mysqld运行权限
chmod 755 /etc/init.d/mysqld
chkconfig --add mysqld

cd /tmp
touch mysql.sock
chown mysql:mysql mysql.sock
chmod 755 mysql.sock

# 配置环境变量
echo "export PATH=$PATH:/usr/local/mysql/bin" >> /etc/profile
source /etc/profile
#初始化数据库,会自动为root帐户生成一个初始密码,要记录下来  删除/opt/mysqlData目录下内容可以重新初始化
/usr/local/mysql/bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/opt/mysqlData
#密码可在 cat /opt/mysqlLog/mysql-err.log 查看 或在 /usr/local/mysql/log/mysql_err.log

# 启动mysql
/etc/init.d/mysqld start
# mysql启动 相关命令
/etc/init.d/mysqld stop
service mysqld start //启动mysql
service mysqld stop //停止mysql
netstat -tnlp //查看是否启动



# 连接mysql
mysql -hip地址 -u用户名 -p
输入密码
重置新密码
ALTER USER 'root'@'localhost' IDENTIFIED BY '新密码';

# 创建远程连接
grant all privileges on *.* to 'root'@'%' identified by '123456';
#CREATE USER 'root'@'%' IDENTIFIED BY '123456'; //8.0以上方法
#grant all privileges on *.* to 'root'@'%' ; //8.0以上方法
grant all privileges on *.* to ‘root'@'%' ;
FLUSH PRIVILEGES;



# 防火墙配置(centos7 防火墙开启3306)
查看已经开放的端口:
firewall-cmd --list-ports
开启端口
firewall-cmd --zone=public --add-port=3306/tcp --permanent

# 修改用户密码
mysql> alter user 'root'@'localhost' identified by 'youpassword';
或者
mysql> set password=password("youpassword");
#刷新权限mysql> flush privileges;
mysql> help contents

#创建授权主机用户
CREATE USER 'root'@'%' IDENTIFIED BY 'root';
# 删除授权主机用户
DROP USER 'root'@'%';

# 解决CentOS7出现的”Failed to start firewalld.service”问题既然没有启动,于是就执行”systemctl start firewalld”启动,但是又出现”Failed to start firewalld.service: Unit is masked.”错误。继续找解决方法,然后输入”systemctl unmask firewalld.service”。

# 解决CentOS7出现的”Failed to start firewalld.service”问题然后再启动”systemctl start firewalld.service”即可解决问题没有报错。

posted @ 2020-04-16 13:57  天道酬勤L  阅读(266)  评论(0编辑  收藏  举报