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ifconfig (short for interface config) is a system administration utility in Unix-like operating systems for network interface configuration.. The utility is a command-line interface tool and is also used in the system startup scripts of many operating systems.
An Ethernet frame including the EtherType field. Each lower slot designates an octet; the EtherType is two octets long. In modern implementations of Ethernet, the field within the Ethernet frame used to describe the EtherType can also be used to represent the size of the payload of the Ethernet Frame.
Download QR code; Print/export ... eth0 (Ethernet 1st adapter) 10 ... On Windows, ipconfig may be used, [2] while on Unix systems, ifconfig or netstat may be used. [3]
sudo retains the user's invocation rights through a grace period (typically 5 minutes) per pseudo terminal, allowing the user to execute several successive commands as the requested user without having to provide a password again. [21] As a security and auditing feature, sudo may be configured to log each command run.
The network controller implements the electronic circuitry required to communicate using a specific physical layer and data link layer standard such as Ethernet or Wi-Fi. [a] This provides a base for a full network protocol stack, allowing communication among computers on the same local area network (LAN) and large-scale network communications through routable protocols, such as Internet ...
tcpdump is a data-network packet analyzer computer program that runs under a command line interface.It allows the user to display TCP/IP and other packets being transmitted or received over a network to which the computer is attached. [3]
Three network interface widgets (2 Ethernet and 1 WiFi) showing two network interfaces being up, one being down with no cable plugged in (hence: "no carrier"), underlined in red. NO CARRIER (capitalized) is a word code transmitted from a modem to its attached device (typically a computer ), indicating the modem is not (or no longer) connected ...
On Linux and all Unix-like operating systems, the utilities ifconfig and the newer ip (from the iproute2-bundle) are used to configure IEEE 802.3 and IEEE 802.11 hardware. These utilities configure the kernel directly and the configuration is applied immediately. After boot-up, the user is required to configure them again.