1. 檢查 network -< 不通 （可能是因為無線網路沒開)
root@user-TravelMate-P653-MG:~# iwconfig
enp5s0 no wireless extensions.
docker0 no wireless extensions.
wlp4s0 IEEE 802.11 ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=off
Retry short limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
lo no wireless extensions.
2. 正常
root@user-TravelMate-P653-MG:~# iwconfig
enp5s0 no wireless extensions.
docker0 no wireless extensions.
wlp4s0 IEEE 802.11 ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=off
Retry short limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
lo no wireless extensions.
