Mastering Networking in Linux 🐧🖥️🌐
A #Twitter Thread with 20 useful examples 👇
A #Twitter Thread with 20 useful examples 👇
1/ Hey, #Linux enthusiasts! Let's dive into mastering networking in Linux. 🖥️🌐
In this thread, I'll cover key concepts and commands with examples to help you become a networking pro. Let's get started! #Networking #LinuxNetworking
In this thread, I'll cover key concepts and commands with examples to help you become a networking pro. Let's get started! #Networking #LinuxNetworking
2/ First up, let's talk about IP addressing. Use 'ifconfig' or 'ip addr' to view network interfaces and their IP addresses.
For example: "ifconfig eth0" or "ip addr show eth0"
will display IP details for the eth0 interface. #Linux #IPaddress
For example: "ifconfig eth0" or "ip addr show eth0"
will display IP details for the eth0 interface. #Linux #IPaddress
3/ To configure a network interface with a specific IP address, use 'ifconfig' or 'ip addr' along with the 'add' option.
For instance: "ifconfig eth0 add 192.168.0.10" or "ip addr add 192.168.0.10 dev eth0".
#LinuxNetworking #Configuration
For instance: "ifconfig eth0 add 192.168.0.10" or "ip addr add 192.168.0.10 dev eth0".
#LinuxNetworking #Configuration
4/ Need to change the default gateway? Utilize 'route' or 'ip route' command.
For example: "route add default gw 192.168.0.1" or "ip route add default via 192.168.0.1"
will set 192.168.0.1 as the default gateway. #Networking #Gateway
For example: "route add default gw 192.168.0.1" or "ip route add default via 192.168.0.1"
will set 192.168.0.1 as the default gateway. #Networking #Gateway
5/ To test network connectivity, use 'ping' command followed by the IP address or domain name.
For instance: "ping 8.8.8.8" or
"ping example.com"
will check if you can reach the specified destination. #Ping #NetworkTesting
For instance: "ping 8.8.8.8" or
"ping example.com"
will check if you can reach the specified destination. #Ping #NetworkTesting
6/ Want to perform DNS lookups? 'nslookup' is your friend! Use it to resolve domain names to IP addresses and vice versa.
For example: "nslookup example.com"
will display the IP address associated with the domain. #DNS #nslookup
For example: "nslookup example.com"
will display the IP address associated with the domain. #DNS #nslookup
7/ Need to check active network connections? 'netstat' or 'ss' command can help. Use "netstat -tuln" or "ss -tuln" to view listening ports and established connections. #Netstat #NetworkConnections
8/ Troubleshooting network issues? 'traceroute' is your go-to tool! Use "traceroute example.com" to track the route packets take from your system to the destination, helping identify network hops and latency. #Traceroute #NetworkTroubleshooting
10/ Did you know you can create virtual network interfaces? Use 'ifconfig' or 'ip link' with the 'add' option to set up a virtual interface.
For example: "ifconfig eth0:0 192.168.0.20" or "ip addr add 192.168.0.20/24 dev eth0:0"
creates a virtual interface. #VirtualInterface
For example: "ifconfig eth0:0 192.168.0.20" or "ip addr add 192.168.0.20/24 dev eth0:0"
creates a virtual interface. #VirtualInterface
11/ Ever heard of firewalld? It's a dynamic firewall mgmt tool used in many Linux distributions. With firewalld, u can define & manage fw rules to control nw traffic.
To check the status of firewalld, use the cmd'systemctl status firewalld'. #FirewalldStatus #LinuxNetworking
To check the status of firewalld, use the cmd'systemctl status firewalld'. #FirewalldStatus #LinuxNetworking
12/ Need to check the DNS configuration on your system? Use 'cat /etc/resolv.conf' to display the DNS server information configured for your Linux machine. #DNSConfig #LinuxNetworking
13/ Want to verify network connectivity and measure round-trip time? 'ping' has got you covered! Use the '-c' option to specify the number of packets to send.
For example: "ping -c 5 8.8.8.8" will send 5 ICMP packets to 8.8.8.8 and display the results. #Ping #NetworkTesting
For example: "ping -c 5 8.8.8.8" will send 5 ICMP packets to 8.8.8.8 and display the results. #Ping #NetworkTesting
14/ Curious about the network routes your system is aware of? Utilize the 'route' or 'ip route' command.
For instance: "route -n" or "ip route show" will display the routing table containing information about network destinations and gateways. #RoutingTable #LinuxNetworking
For instance: "route -n" or "ip route show" will display the routing table containing information about network destinations and gateways. #RoutingTable #LinuxNetworking
15/ Need to check the status of network interfaces? 'ifconfig' or 'ip addr' along with the interface name will come in handy.
For example: "ifconfig eth0" or "ip addr show eth0" will provide information about the status and configuration of the eth0 interface. #NetworkInterface
For example: "ifconfig eth0" or "ip addr show eth0" will provide information about the status and configuration of the eth0 interface. #NetworkInterface
16/ Want to capture and analyze network traffic? 'tcpdump' is a powerful command-line packet analyzer.
Use "tcpdump -i eth0" to capture packets on the eth0 interface. You can apply filters to capture specific traffic. #Tcpdump #PacketAnalyzer #NetworkTraffic
Use "tcpdump -i eth0" to capture packets on the eth0 interface. You can apply filters to capture specific traffic. #Tcpdump #PacketAnalyzer #NetworkTraffic
17/ Need to identify the network processes running on your system? 'netstat' or 'ss' command with the '-p' option can help.
For instance: "netstat -tulnp" or "ss -tulnp" will display listening ports and associated processes. #Netstat #NetworkProcesses
For instance: "netstat -tulnp" or "ss -tulnp" will display listening ports and associated processes. #Netstat #NetworkProcesses
18/ Want to check the status of network services? 'systemctl' is your friend!
Use "systemctl status <service>" to view the status of a specific service.
For example: "systemctl status sshd" will display the status of the SSH service. #Systemctl #NetworkServices
Use "systemctl status <service>" to view the status of a specific service.
For example: "systemctl status sshd" will display the status of the SSH service. #Systemctl #NetworkServices
19/ Need to flush DNS cache? 'systemd-resolve' can help you out.
Use "systemd-resolve --flush-caches" to clear DNS cache and force the system to perform fresh DNS lookups. #DNSCache #SystemdResolve
Use "systemd-resolve --flush-caches" to clear DNS cache and force the system to perform fresh DNS lookups. #DNSCache #SystemdResolve
20/ Want to perform network speed tests? 'speedtest-cli' is a handy tool.
Install it using 'pip' or your package manager, then run "speedtest-cli" to measure your network's download and upload speeds. #SpeedTest #NetworkSpeed
Install it using 'pip' or your package manager, then run "speedtest-cli" to measure your network's download and upload speeds. #SpeedTest #NetworkSpeed
21/ That's a wrap! 🎉 I hope this thread helped you understand and master networking in Linux. Remember, there's much more to learn, but these concepts and commands are a great starting point.
Happy networking!
#LinuxNetworking #NetworkCommands #LearnLinux
Happy networking!
#LinuxNetworking #NetworkCommands #LearnLinux
Retweet the thread if you find it useful. Thanks!
جاري تحميل الاقتراحات...