saurabheights · December 27, 2018 15:23
diff --git a/checkExternalSystemOpenPorts.sh b/checkExternalSystemOpenPorts.sh
 sudo apt-get install arp-scan
 ifconfig # To find the interface
 sudo arp-scan --interface=enp2s0 --localnet # Change enp2s0 to proper interface

 # Check each port on the external system ip
 for f in {1..50000}; do echo ${f} && telnet ip ${f}; done
 # press Ctrl+] and quit to exit each output
	sudo apt-get install arp-scan
	ifconfig # To find the interface
	sudo arp-scan --interface=enp2s0 --localnet # Change enp2s0 to proper interface

	# Check each port on the external system ip
	for f in {1..50000}; do echo ${f} && telnet ip ${f}; done
	# press Ctrl+] and quit to exit each output