博文
Set up your Mac/Linux and avoid double logging in (ssh->ssh)
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If only you need to login into A.edu and then login to B.edu.
A quick guide on how to get rid of vorlon, an example:
1. First:
mkdir ~/.ssh
vim ~/.ssh/config
Contents of config:
Host yws14
User your_user_name
HostName B.edu
ProxyCommand /usr/bin/ssh your_user_name@A.edu /usr/bin/nc %h %p
After these, you may try 'ssh B', and input the passwd of your A and B. Also, you may try file transfer 'scp B:~/.bashrc ./'.
2. If you want to skip the password stuff: ssh-keygen -t rsa (Just yes, enter, enter to create a simple keygen, or leave it blank)
cat ~/.ssh/id_rsa.pub | ssh your_user_name@A.edu 'cat >> .ssh/authorized_keys’
ssh your_user_name@A.edu
ssh-keygen -t rsa (create a new private-public key pair in A)
cat .ssh/id_rsa.pub | ssh your_user_name@B.edu 'cat >> .ssh/authorized_keys’
Then, everything is set.
The essence is to use private-public key pairs to avoid password stuff.
https://blog.sciencenet.cn/blog-733034-869783.html
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