Ubuntu / Linux has long been revered for its robust networking capabilities, making it a favorite among both server administrators and desktop users. Whether you're troubleshooting connectivity issues, managing network interfaces, or inspecting routing tables, Ubuntu provides a rich set of networking commands. In this blog post, we'll embark on a journey to explore essential Ubuntu Linux networking commands that empower users to diagnose, configure, and optimize their network settings.
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| Linux Networking Commands |
Certainly! Here's a list of some essential Linux networking commands that
can be used for various network-related tasks:
1. ifconfig: Interface Configuration
Display information about network interfaces.
//bash
ifconfig
2. ip: Networking Swiss Army Knife
Display and manipulate routing, devices, policy routing, and tunnels.
//bash
ip link show
ip address show
ip route show
3. ping: Test Network Connectivity
Send ICMP Echo Request packets to a specified host.
//bash
ping <hostname or IP>
4. traceroute: Trace the Network Path
Display the route packets take to a network host.
//bash
traceroute <hostname or IP>
5. netstat: Network Statistics and Connections
Display network connections, routing tables, interface statistics, masquerade connections, etc.
//bash
netstat -a
netstat -r
6. route: Show/Manipulate IP Routing Table
Display or manipulate the IP routing table.
//bash
route
7. nslookup/dig: DNS Lookup
Query DNS servers for information about domain names and IP addresses.
//bash
nslookup <hostname or IP>
dig <hostname or IP>
8. host: DNS Lookup
Display DNS information about domain names and IP addresses.
//bash
host <hostname or IP>
9. wget/curl: Download Files from the Web
Retrieve files from the web using HTTP, HTTPS, or FTP protocols.
//bash
wget <URL>
curl <URL>
10. ss: Socket Statistics
Display socket statistics, including all TCP, UDP, and UNIX socket connections.
//bash
ss
11. nmap: Network Mapper
Scan networks for open ports, discover hosts, and gather information about services.
//bash
nmap <hostname or IP>
12. ssh: Secure Shell
Connect to a remote server securely using the SSH protocol.
//bash
ssh <username>@<hostname or IP>
13. scp: Secure Copy
Copy files securely between hosts using the SSH protocol.
//bash
scp <source> <destination>
14. iptables: IP Packet Filter and NAT
Configure firewall rules and perform Network Address Translation (NAT).
//bash
iptables -L
15. tcpdump: Packet Analyzer
Capture and display TCP, UDP, and other packets on a network.
//bash
tcpdump
16. nmcli: Network Manager Command-Line Interface
Manage NetworkManager connections, devices, and settings.
//bash
nmcli device show
These commands cover a broad range of networking tasks and are essential for anyone working with Linux networking. Keep in mind that some commands may require administrative privileges, so you might need to use `sudo` before them in certain cases.
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