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

In this subnet blocks 192.168.1.0/26 What is the range of assignable host address?

1 Answers  

---

What IP network addresses are set aside for class C (for private use) ? a. 172.16.0.0 (mask 255.240.0.0) b. 172.16.0.0 (mask 255.255.0.0) c. 196.168.0.0 (mask 255.255.0.0) d. 192.168.0.0 (mask 255.255.0.0) e. 198.168.0.0 (mask 255.255.255.0)

1 Answers  

---

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

8 Answers   Cisco,

---

Which command allows you to monitor the routing requests that are not getting resolved from the routing table ?

1 Answers  

---

2 examples of DCE devices ? a. modems b. routers c. computers d. interface cards

1 Answers  

---

what is the meaning of routing protocal and routed protocal?

5 Answers   Microsoft, NIIT, TCS,

---

what is different between instalation and configuration?

12 Answers   DELL, HCL,

---

List 3 session layer standards

1 Answers  

---

A machine that is not a mail host, relay host, or gateway would use which file ?

1 Answers  

---

Non-authoritative answers can be incorrect mostly due to :

1 Answers  

---

OSI Stands for:

1 Answers  

---

what is the purpose of activ directory in windows2003

2 Answers  

---