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ifconfig is a command-line utility for network interface management on CentOS systems. It provides functionality to query, configure, activate, and deactivate network interfaces. Key Functions Display Interface Details: Show configuration and status for all or a specific network interface. Configure Network Parameters: Set IP address, netmask, ...

While DHCP automatically assigns IP addresses in most networks, certain scenarios like running servers or enabling port forwarding require a static IP configuration. This guide demonstrates how to set a static IP address on Ubuntu 22.04 using the graphical NetworkManager TUI tool. Note: Ensure your virtual machine uses bridged networking mode f ...

Capturing Network Traffic with Raw Sockets in Go The most common library for capturing network traffic in Go is github.com/google/gopacket, which requires libpcap and therefore must be compiled with CGO enabled. To reduce environmental dependencies, we can use raw sockets to capture network traffic and then leverage gopacket's protocol parsing ...

Computer Network Model Network Interfaces in Linux (1) View network interfaces (NICs) ip link show ls /sys/class/net ip a ifconfig (2) Network Interface Details - Interpreting `ip a` output: State: UP/DOWN/UNKNOWN link/ether: MAC address inet: Assigned IP address - Configuration files: cat /etc/sysconfig/network- ...

3.4 Packet Capture in Linux ARP Resolution Process: Wireshark packet capture workflow # Install packet capture software yum install -y wireshark # Capture ARP packets on interface eth1 tshark -i eth1 -f arp # Sample output: # 1 0.000000000 Vmware_2e:aa:48 -> Broadcast ARP 42 Who has 172.16.1.51? Tell 172.16.1.61 # 2 0.000263929 Vmware_c ...