最近在折腾VPS ipv6,一般是在网卡文件(/etc/network/interfaces)修改就好了.这几天买了个first-rootVPS,修改一直没成功.实在没办法就添加到开机启动也没成功,后面找到原因,(是first-root系统模版问题,默认在/etc/rc.local添加了(/bin/sleep 60 && /sbin/dhclient -cf /etc/dhcp/dhclient6.conf -6 &)代码 ).要感谢死色鬼和空空,这里记录一下ubuntu添加开机启动.
ubuntu16
这是我要开机启动的sh,可以根据你自己修改你自己需要开机运行的代码,(大佬别笑话我),在/etc/init.d/创建,然后给权限,
vi /etc/init.d/netip.sh
#!/bin/bash
ip addr add 2001:::::/64 dev ens3
ip addr add 2002::/64 dev ens3
ip addr add 2a04:::/48 dev ens3
chmod +x /etc/init.d/netip.sh
然后编辑/etc/rc.local,添加需要开机启动的任务,第2行是test的可以自己删掉
#!/bin/bash
bash /etc/init.d/netip.sh
echo "看到这个表示脚本成功 " > /root/test.log
exit 0
给rc.local加上权限
chmod +x /etc/rc.local
ubuntu18
不再使用initd管理系统,改用systemd。使用systemd设置开机启动
为了像以前一样,在/etc/rc.local中设置开机启动程序,需要以下几步:
systemd默认读取/etc/systemd/system下的配置文件,该目录下的文件会链接/lib/systemd/system/下的文件。一般系统安装完/lib/systemd/system/下会有rc-local.service文件,即我们需要的配置文件。链接过来:
ln -fs /lib/systemd/system/rc-local.service /etc/systemd/system/rc-local.service
cd /etc/systemd/system/
cat rc-local.service
rc-local.service内容
# 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=0
RemainAfterExit=yes
GuessMainPID=no
[Install]
WantedBy=multi-user.target
Alias=rc-local.service
1) [Unit] 区块:启动顺序与依赖关系。
2) [Service] 区块:启动行为,如何启动,启动类型。
3) [Install] 区块,定义如何安装这个配置文件,即怎样做到开机启动。
创建/etc/rc.local文件
vi /etc/rc.local
将下面内容复制进rc.local文件
#!/bin/bash
bash /etc/init.d/netip.sh
echo "看到这个表示脚本成功 " > /root/test.log
exit 0
赋可执行权限
chmod +x /etc/rc.local
最后reboot重启系统,然后查看test.log
启动服务并检查状态
systemctl enable rc-local
systemctl start rc-local.service
systemctl status rc-local.service
或者修改rc-local.service
/lib/systemd/system/rc-local.service新增:
[Install]
WantedBy=multi-user.target
Alias=rc-local.service
设置开机自启动rc-local
systemctl enable rc-local
创建/etc/rc.local
cat > /etc/rc.local << EOF
#!/bin/bash
echo "test rc.local " > /tmp/rctest.log
EOF
新增执行权限
chmod +x /etc/rc.local
借鉴学习:
https://www.centos.bz/2018/05/ubuntu-18-04-rc-local-systemd%E8%AE%BE%E7%BD%AE/
https://www.jianshu.com/p/79d24b4af4e5
https://linuxeye.com/463.html
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