需要root权限：可以sudo 但是我习惯直接su
su passwd：
vim打开末尾添加几行：
vi /lib/systemd/system/rc-local.service# SPDX-License-Identifier: LGPL-2.1+## This file is part of systemd.## systemd is free software; you can redistribute it and/or modify it# under the terms of the GNU Lesser General Public License as published by# the Free Software Foundation; either version 2.1 of the License, or# (at your option) any later version.# This unit gets pulled automatically into multi-user.target by# systemd-rc-local-generator if /etc/rc.local is executable.[Unit] Description=/etc/rc.local Compatibility Documentation=man:systemd-rc-local-generator(8) ConditionFileIsExecutable=/etc/rc.local After=network.target [Service] Type=forking ExecStart=/etc/rc.local start TimeoutSec=0RemainAfterExit=yes GuessMainPID=no# added by yourself[Install] WantedBy=multi-user.target Alias=rc-local.service
保存退出。
把刚保存的文件链接到/etc/systemd/system/目录下：
ln -s /lib/systemd/system/rc-local.service /etc/systemd/system/rc-local.service
打开 /etc/rc.local 输入：
vi /etc/rc.local#!/bin/bashautossh -M 8888 -NR 1234:localhost:22 [email protected] -p 22 &exit 0
保存，退出，赋权限chmod 755 /etc/rc.local
reboot
重启