在linux(Centos)中Mysql的端口修改保姆级教程(最新整理)

 cd  ~  或  su

vi /etc/my.cnf

# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/8.0/en/server-configuration-defaults.html
[mysqld]
bind-address=0.0.0.0
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M
#
# Remove the leading "# " to disable binary logging
# Binary logging captures changes between backups and is enabled by
# default. It's default setting is log_bin=binlog
# disable_log_bin
#
# 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
#
# Remove leading # to revert to previous value for default_authentication_plugin,
# this will increase compatibility with older clients. For background, see:
# https://dev.mysql.com/doc/refman/8.0/en/server-system-variables.html#sysvar_default_authentication_plugin
# default-authentication-plugin=mysql_native_password
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
port=2604
character-set-server=utf8
default-storage-engine=innodb
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
#skip-grant-tables
skip-name-resolve

systemctl restart mysqld

show global variables like 'port';

journalctl -xe

(端口号改成你自己设置的)semanage port -a -t mysqld_port_t -p tcp 2604

systemctl restart mysqld