OpenSSH - OpenSSH is a free version of the SSH connectivity tools that technical users rely on.
tcpdump - tcpdump is a common packet analyzer that runs under the command line.
Bitvise SSH Server (WinSSHD) - WinSSHD is our SSH server for all Windows NT-series operating systems.
Wireshark - Wireshark is a network protocol analyzer for Unix and Windows. It lets you capture and interactively browse the traffic running on a computer network.
Dropbear SSH Server and Client - Dropbear is a relatively small SSH 2 server and client.
Ettercap - Ettercap is a suite for man in the middle attacks on LAN.