/var/log/mysql/error.log。/var/log/mysql/general.log。/var/log/mysql/slow-query.log。/var/log/mysql/binlog.*。查看日志
sudo tail -f /var/log/mysql/日志文件名。sudo mysqlbinlog /var/log/mysql/binlog.000001。开启/关闭日志
/etc/mysql/my.cnf 或 /etc/mysql/mysql.conf.d/mysqld.cnf，修改对应参数（如 general_log=1），重启服务生效。日志轮转
logrotate 工具自动切割日志，配置文件 /etc/logrotate.d/mysql，示例：/var/log/mysql/*.log {
daily
rotate 7
compress
missingok
postrotate
systemctl restart mysql
endscript
}
```。
权限管理
mysql 用户：sudo chown -R mysql:mysql /var/log/mysql/。
