Ribal Ghraoui
Linux Networking Commands
1. ifconfig
- Display network interface information.
Ifconfig
2. ip
- Show/manipulate routing, devices, policy
routing, and tunnels.
ip address show
3. route
- Display or manipulate the IP routing table.
route -n
4. ping
- Send ICMP ECHO_REQUEST to network
hosts. ping google.com
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5. traceroute
- Print the route packets trace to network
host. traceroute google.com
6. netstat
- Print network connections, routing tables,
interface statistics, masquerade connections, and
multicast memberships.
netstat -an
7. ss
- Display socket statistics.
ss -tulpn
8. hostname
- Show or set the system's host name.
Hostname
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9. dig
- DNS lookup utility.
dig google.com
10. nslookup
- Query Internet name servers
interactively. nslookup google.com
11. route
- Manipulate routing tables.
route add default gw 192.168.1.1
12. iptables
- Administration tool for IPv4 packet filtering
and NAT.
iptables -L
13. tcpdump
- Dump traffic on a
network. tcpdump -i eth0
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14. sshd
- OpenSSH daemon.
service sshd restart
15. telnet
- User interface to the TELNET
protocol. telnet google.com 80
16. scp
- Secure copy (remote file copy program).
scp file.txt user@remote:/path/to/destination
17. wget
- Non-interactive network downloader.
wget http://example.com/file.zip
18. curl
- Command line tool for transferring data with
URL syntax.
curl http://example.com/api
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19. iptraf
- Interactive color IP LAN monitor.
Iptraf
20. iftop
- Display bandwidth usage on an interface.
Iftop
21. nmap
- Network exploration tool and security
scanner. nmap -sP 192.168.1.0/24
22. lsof
- List open files.
lsof -i :80
23. ethtool
- Display or change ethernet card
settings. ethtool eth0
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24. arp
- Display or modify the ARP
cache. arp -a
25. route
- Display or modify the IP routing table.
Route
26. ss
- Display socket
statistics. ss -s
27. hostnamectl
- Control the system hostname and related
settings. hostnamectl status
28. resolvconf
- Manage DNS
information. resolvconf -u
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29. mtr
- Network diagnostic
tool. mtr google.com
30. iwconfig
- Configure a wireless network interface.
Iwconfig
31. nc
- Arbitrary TCP and UDP connections and
listens. nc -l 8080
32. scp
- Copy files between hosts on a network.
scp file.txt user@host:/path/to/destination
33. ssh-keygen
- Generate, manage, and convert authentication
keys for ssh.
ssh-keygen -t rsa
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34. ss
- Show socket
statistics. ss -t -a
35. tcpdump
- Capture and display packets on a
network. tcpdump -i eth0 tcp port 80
36. route
- Add a new route.
route add -net 192.168.2.0 netmask
255.255.255.0 gw 192.168.1.1
37. nmcli
- Command-line client for
NetworkManager. nmcli connection show
38. dig
- Perform DNS lookups.
dig +short A google.com
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39. nload
- Visual representation of incoming and
outgoing traffic.
Nload
40. iperf
- Tool for measuring TCP and UDP
bandwidth performance.
iperf -c server_ip
41. fping
- Quickly ping multiple hosts.
fping -a -g 192.168.1.1 192.168.1.254
42. iftop
- Real-time console-based network
bandwidth monitoring tool.
iftop -n
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43. route
- Delete a route.
route del -net 192.168.2.0 netmask
255.255.255.0
44. tcpdump
- Capture and display packets in
ASCII. tcpdump -A -i eth0
45. netcat
- Utility for reading from and writing to
network connections.
nc -zv 192.168.1.1 22
46. nmtui
- Text User Interface for controlling NetworkManager.
Nmtui
47. ethtool
- Change the speed/duplex settings of an
Ethernet device.
ethtool -s eth0 speed 100 duplex full
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48. ss
- Show listening
sockets. ss -l
49. host
- DNS lookup utility.
host google.com
50. nmcli
- List available Wi-Fi
networks. nmcli device wifi list
These commands cover a wide range of networking
tasks and can be useful for troubleshooting,
monitoring, and managing network configurations in
a DevOps environment.
