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2016年4月7日星期四

Mininet Walkthrough

See also: http://mininet.org/walkthrough/

- Start wireshark:

"sudo wireshark &", an error message showed up: "Lua: Error during loading: dofile has been disabled due to running wireshark as superuser..."
Seems everybody tried to stop me to run run wireshark as root.

2016年4月6日星期三

See also: http://mininet.org/download/

- There are four methods to install Mininet.
Option 1: Mininet VM Installation (easy, recommended)
Option 2: Native Installation from Source
Option 3: Installation from Packages
Option 4. Upgrading an existing Mininet Installation
- I already have a new-installed Ubuntu virtual machine, so I choose option 2. ( ubuntu version Ubuntu 15.10)

Simulator VS Emulator

According to Wikipedia, "'emulation' referred only to emulation with a hardware or microcode assist, while 'simulation' referred to pure software emulation."

2016年4月4日星期一

Python Challenge level 19

http://www.pythonchallenge.com/pc/hex/bin.html (login:butter/fly)

- A map of India. An email with an attachment (wav file). Very straightforward, we should convert the mess in the attachment into a voice file.

2016年4月1日星期五

Python Challenge level 18

http://www.pythonchallenge.com/pc/return/balloons.html (logib:huge/file)

- Two picture, one is brighter. "Can you tell the difference?" and a comment says it's more easy than I think.
- Just visit http://www.pythonchallenge.com/pc/return/brightness.html and you will see the same page.....wait! The comment changes..."maybe consider deltas.gz"!

Python Challenge level 17

http://www.pythonchallenge.com/pc/return/romance.html (login:huge/file)

- A plenty of cookies. There is also a small picture on the lower left corner, remember it? It's the same photo as level 4. (I don't remember. Really.)
- Obviously, we should find out the cookies sent by level 4 webpage.