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How to connect to services


While service challenges are often connected to with netcat or PuTTY, solving them will sometimes require using a scripting language like Python. CTF players often use Python alongside pwntools.

You can run pwntools right in your browser by using

Using netcat

netcat usage

netcat is a networking utility found on macOS and linux operating systems and allows for easy connections to CTF challenges. Service challenges will commonly give you an address and a port to connect to. The syntax for connecting to a service challenge with netcat is nc <ip> <port>.

Using ConEmu

Windows users can connect to service challenges using ConEmu, which can be downloaded here. Connecting to service challenges with ConEmu is done by running nc <ip> <port>.