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eg-253:networkq:672227 [2012/11/29 19:27] – [Question 20] 672227eg-253:networkq:672227 [2012/12/06 15:11] (current) – [Question 24] eechris
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 |**Name** |Ali Ali | |**Name** |Ali Ali |
 |**Student Number** |672227| |**Student Number** |672227|
-|**Date of Submission** |14th Octember 3330 |   +|**Date of Submission** |29th November 2012 |   
  
 ===== Instructions ===== ===== Instructions =====
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 **Answer**:It is to determine how the system is linked to the network **Answer**:It is to determine how the system is linked to the network
 +
 +**Not quite. You need to be more precise.**
 +
 + --- //[[chris@cpjobling.me|Chris Jobling]] 2012/12/06 09:00//
  
  
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 **Answer**:  The DHCP and dns systems and theat by using NAT with masquerade. **Answer**:  The DHCP and dns systems and theat by using NAT with masquerade.
    
 +**No, you need to turn on //IP forwarding//. The other services listed are related to routing from a private to public internet, but they are not directly responsible for routing.**
  
 + --- //[[chris@cpjobling.me|Chris Jobling]] 2012/12/06 09:00//
 ==== Question 17 ==== ==== Question 17 ====
  
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 **Answer**: <cli prompt="$" comment="#"> icct@jupiter:~$ nano /etc/network/options </cli> **Answer**: <cli prompt="$" comment="#"> icct@jupiter:~$ nano /etc/network/options </cli>
 +
 +**As your host is on the saturn network the correct answer would be:**
 +<cli prompt="$" comment="#"> icct@saturn:~$ nano /etc/network/options </cli>
 +
 + --- //[[chris@cpjobling.me|Chris Jobling]] 2012/12/06 09:04//
  
  
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 **Answer**: up    route add -net 192.168.3.0 netmask 255.255.255.0 gw 192.168.1.4 **Answer**: up    route add -net 192.168.3.0 netmask 255.255.255.0 gw 192.168.1.4
 +
 +**What about ''down route delete''?**
 +
 + --- //[[chris@cpjobling.me|Chris Jobling]] 2012/12/06 09:04//
  
 <cli prompt="$" comment="#"> <cli prompt="$" comment="#">
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 #iface eth2 inet dhcp </cli> #iface eth2 inet dhcp </cli>
  
 +**This is the intefaces file on //jupiter// not //saturn//!**
  
 + --- //[[chris@cpjobling.me|Chris Jobling]] 2012/12/06 09:07//
 ===== Checking Your Network ===== ===== Checking Your Network =====
  
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 </cli> </cli>
  
 +<cli prompt="$" comment="#">
 The netstat command with _r flag use it to displays the kernel routing table in the way we've been doing with route.  The netstat command with _r flag use it to displays the kernel routing table in the way we've been doing with route. 
 Destination : The destination network or destination host. Destination : The destination network or destination host.
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 Window : Default window size for TCP connections over this route. Window : Default window size for TCP connections over this route.
 irtt : Initial RTT (Round Trip Time). The kernel uses this to guess about the best TCP protocol parameters without waiting on (possibly slow) answers. irtt : Initial RTT (Round Trip Time). The kernel uses this to guess about the best TCP protocol parameters without waiting on (possibly slow) answers.
 +</cli>
  
 +**I want the explanation in your own words!**
  
 + --- //[[chris@cpjobling.me|Chris Jobling]] 2012/12/06 09:08//
  
 ==== Question 21 ==== ==== Question 21 ====
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 </cli> </cli>
  
-Add your explanation here.+This command displays statistics for the network interfaces currently configured
  
 +**Specifically what statistics?**
 +
 + --- //[[chris@cpjobling.me|Chris Jobling]] 2012/12/06 09:09//
  
 ==== Question 22 ==== ==== Question 22 ====
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 </cli> </cli>
  
-Add your explanation here. +netstat supports a set of options to display active or passive sockets. The options -t, -u, -w, and -x show active TCP, UDP, RAW, and Unix socket connections. If you provide the -a in addition, sockets that are waiting for a connection are displayed as well. This display will give you a list of all servers that are currently running on your system.
 ===== Testing the Connectivity of your network ===== ===== Testing the Connectivity of your network =====
  
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 </cli>   </cli>  
  
-Explain the result.+Each lines gives the details of interaction with each router encounteredSo we see that traceroute not only gives the IP addresses of the intermediate routers but also three round trip times for that particular router as for each router the traceroute commands fires three packets. 
 + 
 +**28 lines of output ommitted I think. Important because that's really what I wanted you to explain!**
  
 + --- //[[chris@cpjobling.me|Chris Jobling]] 2012/12/06 09:10//
 ===== Extension Questions ===== ===== Extension Questions =====
  
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 I hereby submit this work for marking. I hereby submit this work for marking.
  
-Your signature here:+Your signature here: Ali Ali
  
eg-253/networkq/672227.1354217247.txt.gz · Last modified: 2012/11/29 19:27 by 672227