linux免密碼SSH和SCP

生成密鑰

ssh-keygen -t rsa

把公鑰傳到服務器

scp .ssh\id_rsa.pub ubuntu@139.199.72.xxx: ubuntu

寫入到認證文件

cat id_rsa.pub >> .ssh/authorized_keys

PS:注意權限問題,權限也有可能致使要輸入密碼

chmod 700 /home/you_name/.ssh 
chmod 600 /home/you_name/.ssh/authorized_keys​​​​​​​