how can i login without password through ssh
Answers were Sorted based on User's Feedback
Answer / chetan
First log in on A as user a and generate a pair of authentication keys. Do not enter a passphrase:
a@A:~> ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/a/.ssh/id_rsa):
Created directory '/home/a/.ssh'.
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/a/.ssh/id_rsa.
Your public key has been saved in /home/a/.ssh/id_rsa.pub.
The key fingerprint is:
3e:4f:05:79:3a:9f:96:7c:3b:ad:e9:58:37:bc:37:e4 a@A
Now use ssh to create a directory ~/.ssh as user b on B. (The directory may already exist, which is fine):
a@A:~> ssh b@B mkdir -p .ssh
b@B's password:
Finally append a's new public key to b@B:.ssh/authorized_keys and enter b's password one last time:
a@A:~> cat .ssh/id_rsa.pub | ssh b@B 'cat >> .ssh/authorized_keys'
b@B's password:
From now on you can log into B as b from A as a without password:
a@A:~> ssh b@B hostname
B
A note from one of our readers: Depending on your version of SSH you might also have to do the following changes:
Put the public key in .ssh/authorized_keys2
Change the permissions of .ssh to 700
Change the permissions of .ssh/authorized_keys2 to 640
Is This Answer Correct ? | 0 Yes | 1 No |
Which 3 layers are missing in TCP/IP ? a. Physical b. data link c. network d. transport e. session f. presentation g. application
How does a DNS server find the actual root servers ?
What will happen if we send untagged packet to a tagged port
You have an account in your machine with user id of 0, but it is not root. Will this user have superuser previleges ?
How do you shutdown the DHCP daemon ?
Which protocol translates MAC addresses to IP addresses ?
can anyone post apache webserver and tomcat server questions and answers it is very helpful to me please
The DNS server configuration file is:
What does the "Lease" field hold in the dhcp network database ? a. how long the client has the lease for (length) b. how long remains of the lease c. absolute time when the lease expires
what special aspects of your work experience have prepared you for this jobs? can you describe for me one or two of your most important accomplishments? how much supervision have you typically received in your previous job?
How to set Proxy Setting?
Describe End to End network services: (Choose all that apply) * Best Route selection * Accomplished Segment by Segment, each segment is autonomous * Flow Control & Data Integrity * Best efforts packet delivery