URL: http://code.google.com/speed/public-dns/
有 unix server 的人 /etc/resolv.conf 可以設它
nameserver 8.8.8.8
windows 使用者也可看這篇說明來設定
http://code.google.com/speed/public-dns/docs/using.html
好處是
Why should you try Google Public DNS?
By using Google Public DNS you can:
* Speed up your browsing experience.
* Improve your security.
* Get the results you expect with absolutely no redirection.
Once an SSH key has been created, the ssh-copy-id command can be used to install it as an authorized key on the server. Once the key has been authorized for SSH, it grants access to the server without a password.
—>
ssh-copy-id -i ~/.ssh/mykey user@host
Test the new key —>
ssh -i ~/.ssh/mykey user@host
#產生 ssh key pair (普遍使用 RSA)
ssh-keygen
可以再用 password 增加保護, 但也可略過 password , 之後會產生兩個檔 , id_rsa . id_rsa.pub (公鑰)
把公鑰 貼到目標 server 的 ~/.ssh/authorized_keys 即可
2020.0926
ssh-copy-id USER@SERVER
