Debian Linux 11で無線WiFiモジュール・TP-Link TL-WN725Nをセットアップするやり方

            #👇Debian11の基本OS情報
$ lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description: Debian GNU/Linux 11 (bullseye)
Release: 11
Codename: bullseye

#👇Debian11のマイナーバージョン情報
$ cat /etc/debian_version
11.2

#👇Linuxカーネルの情報
$ uname -srv
Linux 5.10.0-10-amd64 #1 SMP Debian 5.10.84-1 (2021-12-08)
        

            $ lsusb
Bus 003 Device 002: ID 8087:8000 Intel Corp.
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:8008 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 004: ID 14cd:1212 Super Top microSD card reader (SY-T18)
Bus 002 Device 003: ID 046d:c077 Logitech, Inc. M105 Optical Mouse
Bus 002 Device 002: ID 1c4f:0002 SiGma Micro Keyboard TRACER Gamma Ivory
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
        

            $ sudo apt update
$ sudo apt install -y linux-headers-$(uname -r) build-essential git
$ git clone https://github.com/lwfinger/rtl8188eu
$ cd rtl8188eu
$ make all
$ sudo make install
$ sudo insmod 8188eu.ko
        

            $ lsusb
#👇デバイスが追加されている
...
Bus 002 Device 004: ID 0bda:8179 Realtek Semiconductor Corp. RTL8188EUS 802.11n Wireless Network Adapter
...
        

            [device]
wifi.scan-rand-mac-address=no
        

            $ systemctl restart NetworkManager
        

            $ lsusb
#👇ちゃんとUSBは認識されている
Bus 002 Device 004: ID 0bda:8179 Realtek Semiconductor Corp. RTL8188EUS 802.11n Wireless Network Adapter
#...
        

            #👇openssh-serverをインストール
$ sudo apt update && sudo apt install openssh-server

#👇インストールされたかステータスの確認
$ sudo systemctl status ssh
● ssh.service - OpenBSD Secure Shell server
   Loaded: loaded (/lib/systemd/system/ssh.service; enabled; vendor preset: enab
   Active: active (running) since Fri 2022-02-25 17:33:27 JST; 6s ago
     Docs: man:sshd(8)
           man:sshd_config(5)
 Main PID: 26327 (sshd)
    Tasks: 1 (limit: 4915)
   Memory: 1.1M
   CGroup: /system.slice/ssh.service
           └─26327 /usr/sbin/sshd -D

 2月 25 17:33:27  ******* systemd[1]: Starting OpenBSD Secure Shell server...
 2月 25 17:33:27  ******* sshd[26327]: Server listening on 0.0.0.0 port 22.
 2月 25 17:33:27  ******* sshd[26327]: Server listening on :: port 22.
 2月 25 17:33:27  ******* systemd[1]: Started OpenBSD Secure Shell server.

#👇ブート時にSSHサーバーが立ち上がるようにする
$ sudo systemctl enable ssh
$ sudo systemctl start ssh
        

            $ ssh <接続先のユーザー名>@xxx.xxx.xxx.xxx
The authenticity of host 'xxx.xxx.xxx.xxx (xxx.xxx.xxx.xxx)' can't be established.
ECDSA key fingerprint is SHA256:*************************.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'xxx.xxx.xxx.xxx' (ECDSA) to the list of known hosts.
taconocat@xxx.xxx.xxx.xxx's password:
Linux ******** 5.10.0-10-amd64 #1 SMP Debian 5.10.84-1 (2021-12-08) x86_64

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Fri Nov 22 14:37:16 2019
>$
        

            $ sudo systemctl set-default multi-user.target
        

            $ startx
        

            $ sudo systemctl set-default graphical.target
        

            [Service]
ExecStart=
ExecStart=-/sbin/agetty --autologin <ログインするユーザー名> --noclear %I 38400 linux
        

            $ ip addr
#👇コレがWiFiデバイス
3: wlx5ca6e685747b: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether ff:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
    inet 192.168.0.104/24 brd 192.168.0.255 scope global dynamic noprefixroute wlx5ca6e685747b
       valid_lft 6437sec preferred_lft 6437sec
#...
        

            $ sudo apt install -y dhcpcd5
        

            #...中略
#👇ファイルの末尾に追記
interface wlx5ca6e685747b
static ip_address=192.168.0.123/24
static routers=192.168.0.1
static domain_name_servers=192.168.0.1
        

            $ sudo systemctl enable dhcpcd
        

            $ ip addr
#👇コレがWiFiデバイス
3: wlx5ca6e685747b: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether ff:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
    inet 192.168.0.123/24 brd 192.168.0.255 scope global dynamic noprefixroute wlx5ca6e685747b
       valid_lft 6437sec preferred_lft 6437sec
#...