Showing posts with label Module One. Show all posts
Showing posts with label Module One. Show all posts

Tuesday, March 10, 2009

Telnet part 2

This was just to prove I can—I climbed the mountain because it was there.

I just tried Telnet again through the browser as suggested on the Discussion Board and I got it to work, amazing. (very pleased I tried again even though I succeeded in the first version when I used MacTelnet 4.09b0213, see entry date March 8 )

The first time I tried this through a browser my Mac opened Terminal, something I haven't seen before and I was a bit concerned to mess with because it look to much like programing. Anyway after read the Discussion Board and building up my courage to toy with something that looked like could destroy my computer if I entered the wrong commands—I had a go and was rewarded with a computer that was still in one piece. phew! As I said before remote learning is more challenging without the support of direct contact with students and lecturers.



Ping it!

For the ping task I was able to us both Network Utility and Visual NetTools and came up very similar answers. On an average it was slightly faster to ping the Black Board than it was Curtin Uni. I suppose this might indicate that they reside in different location.

According to Wikipedia the function of ping








Monday, March 9, 2009

TraceRoute

TraceRoute task I tried the built in software Network Utility that came with the Mac which for some reason I could not get to work. It kept returning time out signals. Then I when to the Mac web site and downloaded Visual TraceRoute which worked first go.

There were 23 hops from my base to curtin.edu.au with hops 1, 20, 21 and 23 failing.
Now I know you have asked for the average time taken to hop but hope you won't be too upset when I say work it out for yourself, the information is below. I don't have the inclination.

The interesting point is that I went through this process three or four times and received the same results when it came to failed hops, it was always hop 1, 20, 21 and 23.

Ideas anyone?

Don't worry about answering I have read some more. According to Wikipedia the act of Traceroute opens up doors for hackers, "Traceroute information has been frequently used by hackers as a way to acquire sensitive information about a company's network architecture." http://en.wikipedia.org/wiki/Traceroute, 13 March 10:15pm
So the hops that consistently lose packets are in all probability being blocked at the server for traceroute requests. I guess the server may be down but I did try traceroute over a few days so I think that's unlikely.

Not being an expert I guess there may be other reason to.

------------------------------------------------
Trace to curtin.edu.au

Hop 1: Reply 1: PACKET LOST
Reply 2: PACKET LOST

Hop 2: core-32-25.grapevine.net.au (203.129.32.25)
Reply 1: 15.664 ms
Reply 2: 12.879 ms

Hop 3: gigabitethernet1-4.core01.eqnx.transact.net.au (202.55.149.209)
Reply 1: 15.160 ms
Reply 2: 11.501 ms

Hop 4: gigabitethernet14-17.core01.gate.transact.net.au (202.55.144.193)
Reply 1: 12.071 ms
Reply 2: 22.742 ms

Hop 5: gigabitethernet1-1.core01.eqnx.transact.net.au (202.55.144.82)
Reply 1: 17.030 ms
Reply 2: 19.115 ms

Hop 6: ge-0-1-0-46.a02.sydnau01.au.ra.gin.ntt.net (202.68.66.57)
Reply 1: 16.912 ms
Reply 2: 20.666 ms

Hop 7: ge-0-0-0.r01.sydnau01.au.bb.gin.ntt.net (202.68.64.225)
Reply 1: 18.272 ms
Reply 2: 16.330 ms

Hop 8: as-0.r01.snjsca04.us.bb.gin.ntt.net (129.250.3.93)
Reply 1: 177.392 ms
Reply 2: 176.178 ms

Hop 9: p16-0-1-1.r21.snjsca04.us.bb.gin.ntt.net (129.250.2.182)
Reply 1: 179.008 ms
Reply 2: 175.100 ms

Hop 10: ae-1.r21.plalca01.us.bb.gin.ntt.net (129.250.5.32)
Reply 1: 178.053 ms
Reply 2: 180.007 ms

Hop 11: po-3.r04.plalca01.us.bb.gin.ntt.net (129.250.2.218)
Reply 1: 179.055 ms
Reply 2: 176.563 ms

Hop 12: 140.174.28.138 (140.174.28.138)
Reply 1: 176.975 ms
Reply 2: 179.716 ms

Hop 13: so-3-3-1.bb1.a.syd.aarnet.net.au (202.158.194.173)
Reply 1: 175.731 ms
Reply 2: 178.296 ms

Hop 14: ge-0-0-0.bb1.b.syd.aarnet.net.au (202.158.194.198)
Reply 1: 180.335 ms
Reply 2: 174.478 ms

Hop 15: so-2-0-0.bb1.a.mel.aarnet.net.au (202.158.194.33)
Reply 1: 185.321 ms
Reply 2: 187.045 ms

Hop 16: so-2-0-0.bb1.a.adl.aarnet.net.au (202.158.194.17)
Reply 1: 193.864 ms
Reply 2: 194.194 ms

Hop 17: so-0-1-0.bb1.a.per.aarnet.net.au (202.158.194.5)
Reply 1: 223.796 ms
Reply 2: 220.002 ms

Hop 18: gigabitethernet0.er1.curtin.cpe.aarnet.net.au (202.158.198.178)
Reply 1: 219.910 ms
Reply 2: 221.319 ms

Hop 19: gw1.er1.curtin.cpe.aarnet.net.au (202.158.198.186)
Reply 1: 226.028 ms
Reply 2: 218.888 ms

Hop 20: Reply 1: PACKET LOST
Reply 2: PACKET LOST

Hop 21: Reply 1: PACKET LOST
Reply 2: PACKET LOST

Hop 22: Reply 1: PACKET LOST
Reply 2: PACKET LOST

Hop 23: systems.curtin.edu.au (134.7.179.56)
Reply 1: 219.450 ms
Reply 2: 223.142 ms



Screen shots and data listed below.

FTP

CAPITALIZATION MATTERS!
The FTP task was very easy with a Mac—I used Cyberduck which I was already experienced in from my work. Hey Ernie, I love my rubber ducky!
I work in the printing industry as a graphic designer and I would be lost without my ducky's ability to transfer those large files to the printers. It's a tremendous advantage NOT to have to use couriers or have to get in the car to move the files around. I now just have to educate all the printers to have a ftp service!






Comparing Telnet to ftp there is only one winner. First prize goes to ftp with no runner-ups. Please read disclaimer below.

Disclaimer: Section 28, subsection 103, para 14, states that I have very limited experience using Telnet and the information I used for the comparison comes from very shallow knowledge. So all information can be used however you like, believe it or not it's up to you. No credit or returns accepted.

Sunday, March 8, 2009

Mod 1 Telnet

TASK A
First I'd like to say what the hell is Telnet?

I started the task and goggled NCSA telnet and downloaded version 2.6 from Huston Uni. It didn't work! I then tried a search on the MacUpdate site and downloaded a version of MacTelnet 4.09b0213 and then installed it. I suppose the version on Mission Control (Huston Uni) was an archaic version that they used to fly to the moon. Anyway, still no idea what this was about, so I looked up the discussion group and found a post by Ernest Hojilla and then looked up his blog for some helpful instructions. The light insight my head was starting to glow, but only a 40 watt bulb at the moment.

Once MacTelnet was started I then entered the suggested text from the mod 1 and pressed return. Nothing happened! Oops, I had the wrong protocol eg. SSH version 1. Once all the information was entered correctly it actually worked. "Fantastic" as Dr Who said.
Can you guess which Doctor that was?

See below the screen shots.










the email address has been removed to avoid spam.

So the whole point of this is to find books in a library? What is Telnet used for now apart from some long lost use of remotely accessing other computers through the web?

TASK B
towel.blinkenlights.nl through Telnet is a very cool version of Star Wars for stick insects.
I don't know why they made a movie when they had the Telnet version! (This comment was suppose to be sarcastic!) The dot matrix reminded me of high school computer classes, the printer would always wake me up in the middle of class.




Telnet—Remote computer access
The Telnet system was probably an efficient method for remotely accessing and moving ASCII data back in the dark ages of the 1980s but is weak on security.
Advances in computer technology are usually initiated for the same reasons that have influenced development throughout the ages. The need for creative expression , entertainment, monetary gain or religion has been the basis for most development throughout history. When I think "history", I usually end up in a reverie about ancient Roman or the BBC's Time Team not computers, but as in ancient Roman, security of their people was considered a right. The use of computers in our everyday life is so profound that no one should underestimate the impact.

The original use for Telnet was, "When Telnet was initially developed in 1969, most users of networked computers were in the computer departments of academic institutions, or at large private and government research facilities." http://en.wikipedia.org/wiki/Telnet date 11 March 2009 at 11:12am.

Whether Telnet was originally used to view animated versions of Star Wars as seen in
towel.blinkenlights.nl is only known to a few, but I suspect it was a creation of a bored academic student wishing to avoid tutorials. However, it is an example of how people expressed their creativity—extending the use of their tools beyond their initially conceived purpose has generated exciting new opportunities for the internet. Developers may have had an initial intention for their products but the users will unintentionally spawn new ideas as they explore its use. The technology evolution has become in part a self-perpetuating entity.

Remote access has now become an integral part of the internet which has allowed other industries to flourish—this simple act of blogging could not be accomplished without its use. One exciting emerging technology which exploits remote access is called Cloud Computing and Cloud Services.
"Cloud Services—Consumer and Business products, services and solutions that are delivered and consumed in real-time over the Internet.
Cloud Computing—an emerging IT development, deployment and delivery model, enabling real-time delivery of products, services and solutions over the Internet" http://blogs.idc.com/ie/?p=190, 11 March 2:20pm

Will this change the future of the personal computing and how we interact with technology? Where will it stop,—as humans increase their thrust for knowledge and build ever increasing smart systems, artificial intelligence may find a need for cyber-religion as an emergence of new niche market.

Where do all the calculators go? (silicon heaven?)
Kryton, Red Dwarf. series III episode 6 http://www.reddwarf.co.uk/news/index.cfm