An insecure TCP connection using UDP to transfer a large file.
Utilizing both stop and wait sliding window.
Additional options for packet and acknowledgement drop.
Using TCP to query google DNS server using a hand written DNS query.
Program connects to a client which sends a file with domain names, then translates them into DNS record format and queries DNS.
The result set of IP addresses, without CNAME records is saved to a subsequent file.
Code can be found here
Implementing a web server and cookies using sockets and HTTP protocol.
The program opens a socket and shows a login page with working cookies.
Code can be found here
A TCP connection using sockets.
The server program creates a connection to the client and sends a file of strings.
Server reverses the strings and sends them back, and finally the client writes them to a result file.
Code can be found here