PingTCP connects to the provided IP address over TCP/TCPv6, sends the string "ping", reads from the connection, and returns the open connection for further use/inspection.

PingUDP connects to the provided IP address over UDP/UDPv6, sends the string "ping", and returns the open connection for further use/inspection.

RunCommands runs each command in cmds individually and returns the output as a []string, with each element corresponding to the respective command.

StartServerTCP starts a TCP server listening at provided IP address and port.

StartServerTCPNs is identical to StartServerTCP, but it operates with the network namespace provided by name.

StartServerUDP starts a UDP server listening at provided IP address and port.

StartServerUDPNs is identical to StartServerUDP, but it operates with the network namespace provided by name.