Objective: lab 6 was all about using software called Ethereal to view packets that were being transmitted during various network activities.
A sample packet
Type: DNS
Length: 60
Source IP: 10.10.2.204
Destination IP: 129.130.176.1
During the lab I discovered the lack of security when talking about file transfer protocol servers. It is very easy using a free program on the internet to see the FTP password. This just reinforces the idea that one should only use FTP when transmitting files they wouldn't mind anyone seeing. It is too easy to hop on and view anything on an FTP without permission.
The lab also involved ICMP, or Internet Control Message Protocol. It is typically not used to send and receive data between end systems, but rather to send error messages. Within approximately 100 frames you could see 5 different protocols working together; DNS, TCP, NBNS, ARP, and HTTP.
ARP is used to acquire a MAC address from an IP address
Wednesday, March 10, 2010
Friday, March 5, 2010
Networking 1 Lab 5
Lab 5 involved downloading and using a free ftp web server known as Apache. Our testing home page had the text 'It works!' on it.
httpd.conf was the main configuration file for the Apache server. There were other configuration files as well used for different languages, manuals, and user directories. Apache supports 27 different languages.
The path to our document root directory was C:/Program Files/Apache/Apache2.2/
We changed our browser to Portuguese [pt]
Apache also works on Unix systems. I wouldn't recommend Apache for commercial applications because you could get more security and features from a non-freeware web server.
127.0.0.1 is the default address because it is the home address. An external connection can be made by using the IP of 10.10.2.2
IP address ports identify the service provided. For example port 80 identifies a web server where 14147 would identify a FTP server.
http://10.10.2.2/aboutme.html
This link would take you to the about me page on our web server.
Ethan Weis
Networking 1
Lab 5 FTP Server
httpd.conf was the main configuration file for the Apache server. There were other configuration files as well used for different languages, manuals, and user directories. Apache supports 27 different languages.
The path to our document root directory was C:/Program Files/Apache/Apache2.2/
We changed our browser to Portuguese [pt]
Apache also works on Unix systems. I wouldn't recommend Apache for commercial applications because you could get more security and features from a non-freeware web server.
127.0.0.1 is the default address because it is the home address. An external connection can be made by using the IP of 10.10.2.2
IP address ports identify the service provided. For example port 80 identifies a web server where 14147 would identify a FTP server.
http://10.10.2.2/aboutme.html
This link would take you to the about me page on our web server.
Ethan Weis
Networking 1
Lab 5 FTP Server
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