Sem fio na instalação do Kali (Realtek)

Question

Acabei de instalar o Kali Linux (64) no meu laptop, mas não consegui fazer o Wi-Fi funcionar e, infelizmente, não tenho uma porta Ethernet no meu laptop. Vale ressaltar que o Wi-Fi estava funcionando bem durante a instalação do Kali.

Estes são o que estou recebendo quando executo os seguintes comandos:

iwconfig:

lo        no wireless extensions
wlan0     IEEE 802.11abg  Mode:Monitor  Tx-Power=12 dBm   
      Retry short limit:7   RTS thr:off   Fragment thr:off
      Power Management:on

ifconfig:

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 1  (Local Loopback)
    RX packets 16  bytes 960 (960.0 B)
    RX errors 0  dropped 0  overruns 0  frame 0
    TX packets 16  bytes 960 (960.0 B)
    TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

airmon-ng

PHY Interface   Driver      Chipset
phy0    wlan0       ??????      Realtek Semiconductor Corp. RTL8723AU 802.11n WLAN Adapter

lspci

00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
00:04.0 Signal processing controller: Intel Corporation 3rd Gen Core Processor Thermal Subsystem (rev 09)
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)
00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation QS77 Express Chipset LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04)
00:1f.6 Signal processing controller: Intel Corporation 7 Series/C210 Series Chipset Family Thermal Management Controller (rev 04)

    

Answer 1

Você precisa instalar o linux-headers e o build-essential e, em seguida, criar o driver de lwfinger git repo :

apt install build-essential git
apt update && apt upgrade && apt dist-upgrade

Reinicialize seu sistema e execute:

apt install linux-headers-$(uname -r)
git clone https://github.com/lwfinger/rtl8723au.git
cd rtl8723au
make
make install
modprobe -v 8723au

Você deve receber:

insmod /lib/modules/$(uname -r)/kernel/drivers/net/wireless/8723au.ko

O módulo sem fio deve estar carregado corretamente.

Para tornar o módulo disponível, atualize a atualização do kernel dkms .

To get DKMS to work:

• Install dkms
• Copy this source to the directory /usr/src/8723au-0.1/
• Run (as root):

# dkms add -m 8723au -v 0.1

• Test a build:

# dkms build -m 8723au -v 0.1

From now on this drive should be available for any new kernels.

    

Answer 2

Experimente modprobe r8723au ; este cartão realtek precisa de firmware também. No Debian o pacote é chamado firmware-realtek