turboLinux_White Box Enterprise Linux_Fedora Core_Red Hat Memo/CentOS7にDHCPサーバをInstall

CentOS7にDHCPサーバをInstall †

Install †

# yum -y install dhcp

設定 †

• /etc/dhcp/dhcpd.conf

#
# DHCP Server Configuration file.
#   see /usr/share/doc/dhcp*/dhcpd.conf.example
#   see dhcpd.conf(5) man page
#
option domain-name      "stock-cube.net";

# option domain-name-servers   "open.stock-cube.net"; 

default-lease-time 600;

max-lease-time 7200;

# 正当な DHCP サーバーであることの宣言
authoritative; 

# ネットワークアドレスとサブネットマスク指定
subnet 192.168.31.0 netmask 255.255.255.0 {
    # 貸し出すIPアドレスの範囲指定
    range dynamic-bootp 192.168.31.151 192.168.31.200;
    # ブロードキャストアドレス指定
    option broadcast-address 192.168.31.255;
    # ゲートウェイアドレス指定
    option routers 192.168.31.1;
    # DNS
    option domain-name-servers 192.168.31.9;
}

起動 †

# systemctl start dhcpd

• Boot時自動起動の設定

  # systemctl enable dhcpd
  Created symlink from /etc/systemd/system/multi-user.target.wants/dhcpd.service  to /usr/lib/systemd/system/dhcpd.service.

• Boot時自動起動の確認

# systemctl list-unit-files  -t service | grep dhcp
dhcpd.service                                 enabled
dhcpd6.service                                disabled

• firewallでdhcpを許可

# firewall-cmd --add-service=dhcp --permanent
success
# firewall-cmd --reload
success

クライアントへのリリースの内容ファイル †

• /var/lib/dhcpd/dhcpd.leases

lease 192.168.31.151 {
  starts 2 2018/03/20 19:53:32;
  ends 2 2018/03/20 20:03:32;
  cltt 2 2018/03/20 19:53:32;
  binding state active;
  next binding state free;
  rewind binding state free;
  hardware ethernet 00:50:56:81:32:e6;
  uid "\001\000PV\2012\346";
  client-hostname "win10-kms-01";
}
lease 192.168.31.151 {
  starts 2 2018/03/20 19:53:32;
  ends 2 2018/03/20 19:55:36;
  tstp 2 2018/03/20 19:55:36;
  cltt 2 2018/03/20 19:53:32;
  binding state free;
  hardware ethernet 00:50:56:81:32:e6;
  uid "\001\000PV\2012\346";
}

参考 †

• https://www.server-world.info/query?os=CentOS_7&p=dhcp