hostnamectl; # tested on
Icon name: computer-server
Chassis: server 🖳
Operating System: Debian GNU/Linux 12 (bookworm)
Kernel: Linux 6.1.0-44-amd64
Architecture: x86-64
Hardware Vendor: GIGABYTE
Hardware Model: G292-Z20-00
Firmware Version: R23
# is a great tool but WARNING it is actively SCANNING the network, ask for permission in advance
netdiscover
Currently scanning: 192.168.11.0/16 | Screen View: Unique Hosts
5 Captured ARP Req/Rep packets, from 5 hosts. Total size: 300
_____________________________________________________________________________
IP At MAC Address Count Len MAC Vendor / Hostname
-----------------------------------------------------------------------------
192.168.0.48 00:e0:6f:XX:XX:XX 1 60 ARRIS Group, Inc.
192.168.0.48 00:11:22:XX:XX:XX 1 60 CIMSYS Inc
192.168.4.125 00:e0:6f:XX:XX:XX 1 60 ARRIS Group, Inc.
192.168.4.125 00:11:22:XX:XX:XX 1 60 CIMSYS Inc
192.168.4.238 18:c0:4d:XX:XX:XX 1 60 GIGA-BYTE TECHNOLOGY CO.,LTD.
# list all nics in a bit confusing too much info manner
ip -br a
lo UNKNOWN 127.0.0.1/8
eno1np0 DOWN
eno2np1 UP 192.168.4.112/24 192.168.0.123/24
virbr0 UP 192.168.122.1/24
vnet0 UNKNOWN
# there is the obvious but a but confusing
ip -c a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
2: eno1np0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
link/ether 18:c0:4d:be:xx:xx brd ff:ff:ff:ff:ff:ff
altname enp130s0f0np0
3: eno2np1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether 18:c0:4d:be:xx:xx brd ff:ff:ff:ff:ff:ff
altname enp130s0f1np1
inet 192.168.4.112/24 brd 192.168.4.255 scope global noprefixroute eno2np1
valid_lft forever preferred_lft forever
inet 192.168.0.123/24 brd 192.168.0.255 scope global eno2np1:3
valid_lft forever preferred_lft forever
5: virbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 52:54:00:74:xx:xx brd ff:ff:ff:ff:ff:ff
inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
valid_lft forever preferred_lft forever
6: vnet0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master virbr0 state UNKNOWN group default qlen 1000
link/ether 1e:e9:fb:64:xx:xx brd ff:ff:ff:ff:ff:ff
nmcli -o
eno2np1: connected to eno2np1
"Mellanox MT27710"
ethernet (mlx5_core), 18:C0:4D:XX:XX:XX, hw, sriov, mtu 1500
ip4 default
inet4 192.168.0.123/24
inet4 192.168.4.112/24
route4 192.168.4.0/24 metric 100
route4 default via 192.168.4.1 metric 100
route4 192.168.0.0/24 metric 0
virbr0: connected (externally) to virbr0
"virbr0"
bridge, 52:54:00:XX:XX:XX, sw, mtu 1500
inet4 192.168.122.1/24
route4 192.168.122.0/24 metric 0
vnet0: connected (externally) to vnet0
"vnet0"
tun, 1E:E9:FB:64:8C:87, sw, mtu 1500
master virbr0
lo: disconnected
"lo"
loopback (unknown), 00:00:00:00:00:00, sw, mtu 65536
eno1np0: unavailable
"Mellanox MT27710"
ethernet (mlx5_core), 18:C0:4D:XX:XX:XX, hw, sriov, mtu 1500
DNS configuration:
servers: 192.168.0.1
interface: eno2np1
Use "nmcli device show" to get complete information about known devices and
"nmcli connection show" to get an overview on active connection profiles.
nmcli connection show
NAME UUID TYPE DEVICE
eno2np1 85df0391-24c1-4ede-b038-xxxxxxxxxxxx ethernet eno2np1
virbr0 28450d6e-6663-4146-8863-xxxxxxxxxxxx bridge virbr0
vnet0 3dbda2f1-e97b-458b-b7cd-xxxxxxxxxxxx tun vnet0
eno1np0 0d8048e1-2f38-340e-9afa-xxxxxxxxxxxx ethernet --
enx761280c5c794 5d3297d5-58b2-3e57-bb74-xxxxxxxxxxxx ethernet --
enxca4ba93ab854 d2272942-f57b-37d6-92fd-xxxxxxxxxxxx ethernet --
route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.4.125 0.0.0.0 UG 0 0 0 eno2np1
0.0.0.0 192.168.4.1 0.0.0.0 UG 100 0 0 eno2np1
192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eno2np1
192.168.4.0 0.0.0.0 255.255.255.0 U 100 0 0 eno2np1
192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
# set default route without dropping ssh connection
ip route replace default via 192.168.4.125
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