====== ネットワーク設定(2) ======
IP関連設定

=====DHCPで設定=====

  # vi /etc/dhcp/dhclient.conf
  ----
  send dhcp-client-identifier=hardware;  (こちらは必須・スペースなし)

  # vi /etc/dhcpcd.conf
  ----
    send dhcp-client-identifier = hardware;  (こちらは必須ではないみたい)
    interface eth0
    #static ip_address=192.168.1.52/24
    #static routers=192.168.1.1
    #static domain_name_servers=192.168.1.1
    
    interface wlan0
    #static ip_address=192.168.1.62/24
    #static routers=192.168.1.1
    #static domain_name_servers=192.168.1.1


  # vi /etc/network/interfaces
  ----
    #iface eth0 inet manual
    iface eth0 inet dhcp
    
    allow-hotplug wlan0
    #iface wlan0 inet manual
    iface wlan0 inet dhcp

===== 固定アドレス =====
アドレスを固定にする場合

  # vi /etc/dhcpcd.conf
  ----
  interface eth0
    static ip_address=192.168.1.7/24
    static routers=192.168.1.1
    static domain_name_servers=192.168.1.1

(参考) http://swiftlife.hatenablog.jp/entry/2016/01/10/170249

===== 固定アドレス(2) =====
  # vi /etc/network/interfaces
  ----
  # wlan0
  iface wlan0 inet static
  address 192.168.20.1
  netmask 255.255.255.0
  gateway 192.168.20.1
  
  # eth1
  iface eth1 inet static
  address 192.168.21.1
  netmask 255.255.255.0
  gateway 192.168.21.1


===== 無線LAN=====
  # wpa_passphrase BBUser870201 XXXXXXXXXXXXXXXXXXX
  # sudo vi /etc/wpa_supplicant/wpa_supplicant.conf
  -
   network={
        ssid="BBUser870201"
        psk=xxxxxxxxxxx....................xxxxx
        proto=RSN
        key_mgmt=WPA-PSK
        pairwise=CCMP
        auth_alg=OPEN
   }

  # ifconfig wlan0 down
  # ifconfig wlan0 up
  # ifconfig wlan0

  # vi /etc/network/interfaces
  ----
  # auto wlan0  <- 要否不明
  allow-hotplug wlan0
  iface wlan0 inet dhcp <-manuaでないとアドレスを取れないかも
  wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf

  # vi /etc/dhcpcd.conf
  ----
  interface wlan0
  static ip_address=192.168.1.62/24
  static routers=192.168.1.1
  static domain_name_servers=192.168.1.1


  # vi /etc/modprobe.d/8192cu.conf
  ----
  # Disable power saving
  options 8192cu rtw_power_mgnt=0 rtw_enusbss=1 rtw_ips_mode=1

===== 無線LAN(2) =====
hostapdを使わないならこの設定

  # vi /etc/network/infterfaces
  ----
  auto wlan0
  allow-hotplug wlan0
  iface wlan0 inet dhcp
 	wpa-ssid [SSID]
 	wpa-psk [PWD]

※wpa_supplicant.confに書いても良い

===== DNSサーバ指定 =====
  # vi /etc/resolv.conf
  ----
    nameserver 8.8.8.8 (DNSサーバのIPアドレス)
  # sudo /etc/init.d/networking reload  (設定反映)