Similar to Unison

Metasploit

Midnight Commander

Netcat

Netstat

Ping (networking utility)

Rsync

TCP Wrappers

Tcpdump

ALTQ

Arping

Avahi (software)

Berkeley Open Infrastructure for Network Computing

Berkeley Packet Filter

Cacti (software)

Cisco IOS

Cyberduck

DCE Distributed File System

DD-WRT

Distributed Computing Environment

Dnsmasq

Firewalld

Comparison of FTP client software

Wget