arp-scan
Send ARP packets to hosts (specified as IP addresses or hostnames) to scan the local network.
-
Scan curreent local network:
arp-scan --localnet -
Scan an IP network with a custom bitmask
arp-scan 192.168.1.1/24
avahi-browse
Check for mDNS devices in the network
avahi-browse -ar
avahi-browse -at
ping
Send ICMP echo requests to network hosts to test connectivity.
-
Ping a host:
ping example.com -
Ping with a specific number of packets (do it x amount of times):
ping -c 4 example.com
traceroute
Print the route packets take to a network host.
- Trace the route to a host:
traceroute example.com
netstat
Display network connections, routing tables, interface statistics, masquerade connections, and multicast memberships.
-
List all ports:
netstat --all -
List all listening ports:
netstat --listening -
List listening TCP ports:
netstat --tcp -
Display PID and program names:
netstat --program -
List information continuously:
netstat --continuous
nmap
Network exploration tool and security scanner.
-
Scan a single IP:
nmap 192.168.1.1 -
Scan a range of IPs:
nmap 192.168.1.1-20
tcpdump
Dump traffic on a network.
-
Capture packets from a specific interface:
tcpdump -i eth0 -
Save captured packets to a file:
tcpdump -w file.pcap