Answer / senthil

To press ctrl+alt+del in two times

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

Answer / pipli

tel the net

Tell me what protocols fall under the application layer of the tcp/ip stack?

0 Answers  

---

True/False: OSPF supports multiple metrics.

1 Answers  

---

IEEE subdivided the datalink layer to provide for environments that need connectionless or connection- oriented services. What are the two layers called?

2 Answers   TATA,

---

what is Organiser? what is work

3 Answers   TCS,

---

Difference between STP and RSTP?

2 Answers   HCL, Jabong,

---

1. Where is that value controlled? 2. What value does spawn return? 3. What is DNS? 4. How do you take a single line of input from the user in a shell script? 5. How do you create a swapfile? 6. what do you mean by server

2 Answers   IBM,

---

Which script starts the in.named daemon ?

1 Answers  

---

True or False: RJ-45 connectors house less connections then RJ-11 because they are larger in size and use bigger cables.

1 Answers  

---

what is dhcp? what is the uses and advantages?

11 Answers   IBM,

---

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?

0 Answers   HCL,

---

What is the advantage of subnetting ?

1 Answers  

---

How network topology affect your decision in setting up a network?

0 Answers  

---