ok c'est compris.J eserai plus explicite la prochaine fois en attendant voici ce que j'ai obtenu
>> cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=18.10
DISTRIB_CODENAME=cosmic
DISTRIB_DESCRIPTION="Ubuntu 18.10"
>> lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 0bda:b009 Realtek Semiconductor Corp.
Bus 001 Device 003: ID 0408:5220 Quanta Computer, Inc.
Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. Hub
Bus 001 Device 032: ID 04e8:6864 Samsung Electronics Co., Ltd GT-I9070 (network tethering, USB debugging enabled)
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>> lspci -k -nn | grep -A 3 -i net
02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:d723]
Subsystem: Hewlett-Packard Company Device [103c:8319]
03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 15)
Subsystem: Hewlett-Packard Company RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [103c:832c]
Kernel driver in use: r8169
Kernel modules: r8169
>> sudo lshw -C network
*-network NON-RÉCLAMÉ
description: Network controller
produit: Realtek Semiconductor Co., Ltd.
fabriquant: Realtek Semiconductor Co., Ltd.
identifiant matériel: 0
information bus: pci@0000:02:00.0
version: 00
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress cap_list
configuration: latency=0
ressources: portE/S:2000(taille=256) mémoire:91100000-9110ffff
*-network
description: Ethernet interface
produit: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
fabriquant: Realtek Semiconductor Co., Ltd.
identifiant matériel: 0
information bus: pci@0000:03:00.0
nom logique: eno1
version: 15
numéro de série: b4:b6:86:90:a1:5a
taille: 10Mbit/s
capacité: 1Gbit/s
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress msix bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168h-2_0.0.2 02/26/15 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
ressources: irq:19 portE/S:1000(taille=256) mémoire:91004000-91004fff mémoire:91000000-91003fff
*-network
description: Ethernet interface
identifiant matériel: 3
nom logique: enp0s20u3
numéro de série: 4e:aa:33:7b:87:30
fonctionnalités: ethernet physical
configuration: broadcast=yes driver=rndis_host driverversion=22-Aug-2005 firmware=RNDIS device ip=192.168.42.166 link=yes multicast=yes
>> lsmod
Module Size Used by
rndis_host 16384 0
cdc_ether 16384 1 rndis_host
usbnet 45056 2 rndis_host,cdc_ether
cdc_acm 32768 0
rfcomm 77824 4
cmac 16384 1
bnep 20480 2
nls_iso8859_1 16384 1
hp_wmi 16384 0
wmi_bmof 16384 0
sparse_keymap 16384 1 hp_wmi
intel_rapl 20480 0
intel_powerclamp 16384 0
coretemp 16384 0
uvcvideo 98304 0
videobuf2_vmalloc 16384 1 uvcvideo
videobuf2_memops 16384 1 videobuf2_vmalloc
videobuf2_v4l2 24576 1 uvcvideo
videobuf2_common 45056 2 videobuf2_v4l2,uvcvideo
videodev 188416 3 videobuf2_v4l2,uvcvideo,videobuf2_common
media 40960 2 videodev,uvcvideo
kvm 622592 0
irqbypass 16384 1 kvm
punit_atom_debug 16384 0
crct10dif_pclmul 16384 0
crc32_pclmul 16384 0
snd_hda_codec_hdmi 49152 1
ghash_clmulni_intel 16384 0
btusb 45056 0
snd_hda_codec_realtek 106496 1
pcbc 16384 0
btrtl 16384 1 btusb
btbcm 16384 1 btusb
btintel 20480 1 btusb
snd_hda_codec_generic 73728 1 snd_hda_codec_realtek
bluetooth 548864 31 btrtl,btintel,btbcm,bnep,btusb,rfcomm
aesni_intel 200704 2
aes_x86_64 20480 1 aesni_intel
ecdh_generic 24576 2 bluetooth
snd_hda_intel 40960 5
crypto_simd 16384 1 aesni_intel
snd_hda_codec 126976 4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek
cryptd 24576 3 crypto_simd,ghash_clmulni_intel,aesni_intel
snd_hda_core 81920 5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek
glue_helper 16384 1 aesni_intel
intel_cstate 20480 0
joydev 20480 0
snd_hwdep 20480 1 snd_hda_codec
input_leds 16384 0
serio_raw 16384 0
snd_pcm 98304 5 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_core
snd_seq_midi 16384 0
wmi 24576 2 hp_wmi,wmi_bmof
i915 1740800 11
intel_xhci_usb_role_switch 16384 0
roles 16384 1 intel_xhci_usb_role_switch
snd_seq_midi_event 16384 1 snd_seq_midi
kxcjk_1013 20480 0
industrialio_triggered_buffer 16384 1 kxcjk_1013
drm_kms_helper 172032 1 i915
snd_rawmidi 32768 1 snd_seq_midi
video 45056 1 i915
mei_txe 20480 0
drm 458752 5 drm_kms_helper,i915
mei 98304 1 mei_txe
snd_seq 65536 2 snd_seq_midi,snd_seq_midi_event
i2c_algo_bit 16384 1 i915
snd_seq_device 16384 3 snd_seq,snd_seq_midi,snd_rawmidi
snd_timer 32768 2 snd_seq,snd_pcm
fb_sys_fops 16384 1 drm_kms_helper
syscopyarea 16384 1 drm_kms_helper
snd 81920 20 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_pcm,snd_rawmidi
intel_int0002_vgpio 16384 1
hp_wireless 16384 0
kfifo_buf 16384 1 industrialio_triggered_buffer
industrialio 69632 3 industrialio_triggered_buffer,kfifo_buf,kxcjk_1013
mac_hid 16384 0
int3400_thermal 16384 0
acpi_thermal_rel 16384 1 int3400_thermal
processor_thermal_device 16384 0
int3403_thermal 16384 0
sysfillrect 16384 1 drm_kms_helper
int340x_thermal_zone 16384 2 int3403_thermal,processor_thermal_device
sysimgblt 16384 1 drm_kms_helper
soundcore 16384 1 snd
intel_soc_dts_iosf 16384 1 processor_thermal_device
sch_fq_codel 20480 3
iptable_filter 16384 0
ip6table_filter 16384 0
ip6_tables 28672 1 ip6table_filter
br_netfilter 24576 0
bridge 155648 1 br_netfilter
stp 16384 1 bridge
llc 16384 2 bridge,stp
arp_tables 24576 0
parport_pc 36864 0
ppdev 20480 0
lp 20480 0
parport 49152 3 parport_pc,lp,ppdev
ip_tables 24576 1 iptable_filter
x_tables 40960 5 ip6table_filter,iptable_filter,ip6_tables,ip_tables,arp_tables
autofs4 40960 2
psmouse 151552 0
i2c_i801 28672 0
r8169 86016 0
mii 16384 2 r8169,usbnet
lpc_ich 24576 0
ahci 40960 2
libahci 32768 1 ahci
>> iwconfig
>> ifconfig -a
eno1: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether b4:b6:86:90:a1:5a txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
enp0s20u3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.42.166 netmask 255.255.255.0 broadcast 192.168.42.255
inet6 fe80::9bc2:34dd:b71e:a7e1 prefixlen 64 scopeid 0x20<link>
ether 4e:aa:33:7b:87:30 txqueuelen 1000 (Ethernet)
RX packets 8671 bytes 7091950 (7.0 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 7765 bytes 1342133 (1.3 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Boucle locale)
RX packets 3444 bytes 287989 (287.9 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 3444 bytes 287989 (287.9 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
>> sudo iwlist scan
>> uname -r -m
4.18.0-15-generic x86_64
>> cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
>> nm-tool
>> nmcli dev wifi
>> nmcli connection list (< 15.04) ou nmcli connection show (>= 15.04)
NAME UUID TYPE DEVICE
Connexion filaire 2 470e04be-35e6-3e72-bc22-e39fc5475c31 ethernet enp0s20u3
Connexion filaire 1 1fca8a1d-eccd-316c-bfc4-0c5f392b254a ethernet --
>> nmcli connection status
>> sudo rfkill list
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no