how can i login without password through ssh
- 3 Answers
- 7259 Views
- Convergys, I also Faced
- E-Mail Answers
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 |
In a peer-to-peer network, what type of servers wont be there ?
what is networking?
Your Ultra 1 has a 100Mbps Fast Ethernet Card. What is the name of the interface ?
Why we are going to RSTP?
Host A has two routes to host B. First route has 2 hops, but the bandwidth is 56K. The second route has 3 hops, but the bandwidth is 100Mbps. If you use RIP, which route will be taken ?
UDP runs its own ? a. data-link layer protocols b. CRC c. routing d. Acknowledgements
What algorithm does RIP use to determine the best route ?
Which layer enables users on different machines to establish sessions between them.
how do I disable dmp?
True or False: The purpose of each layer of the OSI is to provide services to the next lower level?
What is a characteristic of 802.3 10BaseT standard a. RJ11 Connector at both ends b. UTP RJ45 c. BNC T-connector d. 50 Ohm
Tell me when troubleshooting computer network problems, what common hardware-related problems can occur?
Networking Protocols 
