linux中公钥复制到服务端的方法是什么？

[root@localhost ~]# ssh-copy-id -i ~/.ssh/id_rsa.pub root@192.168.10.10
# 如果没有修改过公钥的默认路径，直接使用ssh-copy-id root@192.168.10.10也是可以的
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
root@192.168.10.10`s password: 

Number of key(s) added: 1

Now try logging into the machine, with:   "ssh 'root@192.168.10.10'"
and check to make sure that only the key(s) you wanted were added.