vkroz · November 8, 2016 00:37
diff --git a/Linux networking.md b/Linux networking.md
diff --git a/nmap.sh b/nmap.sh
 # nmap - Network exploration tool and security / port scanner
 # ----------------------------------------------------------------------------

 # List ports in use
 nmap localhost
 nmap 192.168.11.22

 # endless loop
 watch -n1 'sudo netstat -taupn'
diff --git a/send events to collector b/send events to collector
 # Netcat is a simple Unix utility which reads and writes data across network connections
 # ----------------------------------------------------------------------------

 # Test if a port on a remote system is reachable
 #     Will output 0 if port 123 is open, and 1 if it's closed.
 nc 127.0.0.1 123 < /dev/null; echo $?     

 # Send arbitrary string to remote connection
 echo "<13>1 - - - - [b9d9a9c4-11d5-4b15-844f-c7d0e4353983@41058] `date` This is the heartbeat message" | netcat -q 1 targethost 514

 echo "<13>1 - - - - [b9d9a9c4-11d5-4b15-844f-c7d0e4353983@41058] `date` ping" | nc -vv -w 4 targethost 514
diff --git a/ssh b/ssh
 # Connectting to office VPN
 ssh-add ~/.ssh/id_rsa
 ssh -A [email protected]
diff --git a/wireshark.sh b/wireshark.sh
 # Other useful stuff
 wireshark
 tcpdump
	# nmap - Network exploration tool and security / port scanner
	# ----------------------------------------------------------------------------

	# List ports in use
	nmap localhost
	nmap 192.168.11.22

	# endless loop
	watch -n1 'sudo netstat -taupn'
	# Netcat is a simple Unix utility which reads and writes data across network connections
	# ----------------------------------------------------------------------------

	# Test if a port on a remote system is reachable
	# Will output 0 if port 123 is open, and 1 if it's closed.
	nc 127.0.0.1 123 < /dev/null; echo $?

	# Send arbitrary string to remote connection
	echo "<13>1 - - - - [b9d9a9c4-11d5-4b15-844f-c7d0e4353983@41058] `date` This is the heartbeat message" \| netcat -q 1 targethost 514

	echo "<13>1 - - - - [b9d9a9c4-11d5-4b15-844f-c7d0e4353983@41058] `date` ping" \| nc -vv -w 4 targethost 514