Find more infor about your ethernet card on Debian Linux

In order to find more info about your ethernet card install package ethtool: apt-get install ethtool ethtool eth0 You will get something like this: ethtool eth0 Settings for eth0:         Supported ports: [ TP ]         Supported link modes:   10baseT/Half 10baseT/Full                                 100baseT/Half 100baseT/Full                                 1000baseT/Full         Supports auto-negotiation: Yes         Advertised link modes:  10baseT/Half 10baseT/Full                                 100baseT/Half 100baseT/Full                                 1000baseT/Full         Advertised auto-negotiation: Yes         Speed: 1000Mb/s         Duplex: Full         Port: Twisted Pair         PHYAD: 0         Transceiver: internal         Auto-negotiation: on         Supports Wake-on: umbg         Wake-on: g         Current message level: 0x00000007 (7)         Link detected: yes

 

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