# 使用证书登录ssh

**URL:** https://eijil.com/t/ssh/358
**Category:** 其它
**Created:** [May 22, 2022, 3:05am UTC](https://eijil.com/t/ssh/358 "2022-05-22T03:05:22Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![Tristan](https://eijil.com/user_avatar/eijil.com/tristan/32/986_2.png) [@Tristan](https://eijil.com/u/Tristan)
#### Post date: [May 22, 2022, 3:05am UTC](https://eijil.com/t/ssh/358/1 "2022-05-22T03:05:22Z")

</div>

`ssh-keygen`  
`ssh-copy-id root@ip or domain #Linux系统`  
`cat ~/.ssh/id_rsa.pub | ssh root@ip or domain "mkdir ~/.ssh; cat >> ~/.ssh/authorized_keys" #Windows系统`

删除以前的  
`ssh-keygen -f "/root/.ssh/known_hosts" -R "ip or domain"` //需要引号