Up 無線接続のみで起動 作成: 2021-02-13
更新: 2021-03-13

  • シャットダウン
      $ sudo reboot

  • RaspberryPi からネットワークケーブルを外す

  • power on

  • 設定した固定IP で起動していることを確認
      $ arp -a ? (192.168.1.150) at b8:27:eb:1c:15:60 on en0 ifscope [ethernet]

  • PC から ssh接続
      $ ssh pi@192.168.1.150
      このとき，つぎのメッセージが返され，接続が拒否される： @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY! Someone could be eavesdropping on you right now (man-in-the-middle attack)! It is also possible that a host key has just been changed. The fingerprint for the RSA key sent by the remote host is 5d:cc:99:ce:91:58:25:7b:03:95:b1:0f:f6:c6:52:4d. Please contact your system administrator. Add correct host key in /Users/m/.ssh/known_hosts to get rid of this message. Offending RSA key in /Users/m/.ssh/known_hosts:1 RSA host key for 192.168.1.150 has changed and you have requested strict checking. Host key verification failed.
      つぎのコマンドで ~/.ssh/known_hosts を空にする： ~ $ \cp /dev/null ./.ssh/known_hosts
      そして再び
      $ ssh pi@192.168.1.150
      The authenticity of host '192.168.1.150 (192.168.1.150)' can't be established. RSA key fingerprint is 5d:cc:99:ce:91:58:25:7b:03:95:b1:0f:f6:c6:52:4d. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added '192.168.1.150' (RSA) to the list of known hosts. pi@192.168.1.150's password: Linux dex 4.14.98-v7+ #1200 SMP Tue Feb 12 20:27:48 GMT 2019 armv7l 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: Sat Mar 13 15:39:50 2021 pi@dex:~ $

  • PC のブラウザから http 接続

  • http 接続した画面から vpn 接続

  • RaspberryPi の無線接続の内容のチェック
      $ ip 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 inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000 link/ether b8:27:eb:49:40:35 brd ff:ff:ff:ff:ff:ff 3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 link/ether b8:27:eb:1c:15:60 brd ff:ff:ff:ff:ff:ff inet 192.168.1.150/24 brd 192.168.1.255 scope global wlan0 valid_lft forever preferred_lft forever inet6 2400:4060:e62:a700:2a05:d2fe:64aa:d038/64 scope global mngtmpaddr noprefixroute dynamic valid_lft 13486sec preferred_lft 13486sec inet6 fe80::4f93:cfe9:bed9:29ba/64 scope link valid_lft forever preferred_lft forever