0. netcat 설치

Resolving Dependencies
--> Running transaction check
---> Package nmap-ncat.x86_64 2:6.40-13.amzn2 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

========================================================================================================================
 Package                    Arch                    Version                           Repository                   Size
========================================================================================================================
Installing:
 nmap-ncat                  x86_64                  2:6.40-13.amzn2                   amzn2-core                  207 k

Transaction Summary
========================================================================================================================
Install  1 Package

Total download size: 207 k
Installed size: 418 k
Is this ok [y/d/N]:

2. 서버측

$ nc -l -u [서버포트]


3. 클라이언츠측

$ nc -u [서버IP] [서버포트]

$ nc -zvu [서버IP] [서버포트]