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ssh 远程连接 linux 主机报错：
ECDSA host key for ... has changed and you have requested strict checking.
Host key verification failed.
解决：
host> ssh-keygen -R <ip 地址>
host>ssh username@ip
ECDSA host key for ... has changed and you have requested strict checking.
Host key verification failed.
解决：
host> ssh-keygen -R <ip 地址>
host>ssh username@ip
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docker 安装 mysql8 后， 想在主机 使用 mysql 命令去连接
输入： mysql -uroot -p123456
报错： ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/run/mysql/mysql.sock' (2）
解决 mysql -uroot -p123456 -h 127.0.0.1
新报错: ERROR 1045 (28000): Plugin caching_sha2_password could not be loaded
解决：
host> docker exec -it mysql bash
container> mysql -uroot -p123456
mysql command> use mysql
mysql command> ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY '123456' PASSWORD EXPIRE NEVER;
mysql command> select host, user, plugin from user;
退出到 主机，输入 mysql -uroot -p123456 -h 127.0.0.1
输入： mysql -uroot -p123456
报错： ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/run/mysql/mysql.sock' (2）
解决 mysql -uroot -p123456 -h 127.0.0.1
新报错: ERROR 1045 (28000): Plugin caching_sha2_password could not be loaded
解决：
host> docker exec -it mysql bash
container> mysql -uroot -p123456
mysql command> use mysql
mysql command> ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY '123456' PASSWORD EXPIRE NEVER;
mysql command> select host, user, plugin from user;
退出到 主机，输入 mysql -uroot -p123456 -h 127.0.0.1
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Windows 的默认图标在 dll 文件里面， 可以使用 BeCyIconGrabber 工具提取。
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