창고에 던져놓고 무선으로 연결하여 사용할 offsite 백업 서버를 위해 아마존에서 구입한 USB AC1200 Adapter. 페도라 23에 드라이버가 없다. 다음과 같이 설치.
$ git clone https://github.com/abperiasamy/rtl8812AU_8821AU_linux.git $ cd rtl8812AU_8821AU_linux/ $ make $ sudo make install $ sudo modprobe 8812au
5ghz에 잘 붙는다.
[ wlan-backup@silver ]iwconfig wlp0s20u9u4 IEEE 802.11AC ESSID:"EJ5G" Nickname:"<WIFI@REALTEK>" Mode:Managed Frequency:5.18 GHz Access Point: 00:07:XX:XX:XX:XX Bit Rate:867 Mb/s Sensitivity:0/0 Retry:off RTS thr:off Fragment thr:off Power Management:off Link Quality=100/100 Signal level=100/100 Noise level=0/100 Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0
동일 로컬 네트웍에 기가빗 유선으로 붙어있는 다른 리눅스 서버와 속도 테스트. WPA2-PSK (AES) 사용하고 신호에 따라 200~270Mbits/sec 정도 나옴. 그럭 저럭 쓸만.
[ home@root ]iperf3 -s ----------------------------------------------------------- Server listening on 5201 ----------------------------------------------------------- Accepted connection from 192.168.130.5, port 50216 [ 5] local 192.168.130.139 port 5201 connected to 192.168.130.5 port 50218 [ ID] Interval Transfer Bandwidth [ 5] 0.00-1.00 sec 18.5 MBytes 155 Mbits/sec [ 5] 1.00-2.00 sec 30.3 MBytes 254 Mbits/sec [ 5] 2.00-3.00 sec 34.5 MBytes 289 Mbits/sec [ 5] 3.00-4.00 sec 34.7 MBytes 291 Mbits/sec [ 5] 4.00-5.00 sec 34.4 MBytes 289 Mbits/sec [ 5] 5.00-6.00 sec 33.5 MBytes 281 Mbits/sec [ 5] 6.00-7.00 sec 34.7 MBytes 291 Mbits/sec [ 5] 7.00-8.00 sec 34.5 MBytes 289 Mbits/sec [ 5] 8.00-9.00 sec 34.7 MBytes 291 Mbits/sec [ 5] 9.00-10.00 sec 34.6 MBytes 291 Mbits/sec [ 5] 10.00-10.05 sec 1.70 MBytes 307 Mbits/sec - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bandwidth Retr [ 5] 0.00-10.05 sec 327 MBytes 273 Mbits/sec 120 sender [ 5] 0.00-10.05 sec 326 MBytes 272 Mbits/sec receiver ----------------------------------------------------------- Server listening on 5201 -----------------------------------------------------------
그냥 pci-e 카드로 할걸 그랬나?