dhcpサーバのインストール。今回は isc-dhcp-server を使用。
# apt-get install isc-dhcp-server Reading package lists... Done Building dependency tree Reading state information... Done Suggested packages: isc-dhcp-server-ldap The following NEW packages will be installed: isc-dhcp-server 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded. Need to get 936 kB of archives. After this operation, 2,225 kB of additional disk space will be used. Get:1 http://ftp.jp.debian.org/debian/ wheezy/main isc-dhcp-server i386 4.2.2.dfsg.1-5+deb70u6 [936 kB] Fetched 936 kB in 0s (1,190 kB/s) Preconfiguring packages ... Selecting previously unselected package isc-dhcp-server. (Reading database ... 22580 files and directories currently installed.) Unpacking isc-dhcp-server (from .../isc-dhcp-server_4.2.2.dfsg.1-5+deb70u6_i386.deb) ... Processing triggers for man-db ... Setting up isc-dhcp-server (4.2.2.dfsg.1-5+deb70u6) ... Generating /etc/default/isc-dhcp-server... Starting ISC DHCP server: dhcpdcheck syslog for diagnostics. ... failed! failed! invoke-rc.d: initscript isc-dhcp-server, action "start" failed.
/etc/default/isc-dhcp-server を編集して dhcpサーバの動くネットワークインターフェイスを指定
# grep -v -e '^$' -e '#' /etc/default/isc-dhcp-server INTERFACES="eth0"
/etc/dhcp/dhcpd.conf を編集。subnetの範囲とdomain-name-serversを設定。ifconfigを見ながら。
# grep -v -e '^$' -e '#' /etc/dhcp/dhcpd.conf
ddns-update-style none;
option domain-name "example.org";
option domain-name-servers 8.8.8.8, 8.8.4.4;
default-lease-time 600;
max-lease-time 7200;
log-facility local7;
subnet 192.168.20.0 netmask 255.255.255.0 {
option routers 192.168.20.1;
range 192.168.20.2 192.168.20.100;
}
# ifconfig eth0
eth0 Link encap:Ethernet HWaddr XXXXXXXXXXXXXXXXX
inet addr:192.168.20.1 Bcast:192.168.20.255 Mask:255.255.255.0
inet6 addr: fe80::20d:56ff:fee8:12ca/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:196 errors:0 dropped:0 overruns:0 frame:0
TX packets:15 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:58047 (56.6 KiB) TX bytes:1916 (1.8 KiB)
Interrupt:7
dhcpdの再起動
root@debian:~# /etc/init.d/isc-dhcp-server restart Stopping ISC DHCP server: dhcpd. Starting ISC DHCP server: dhcpd.
このままだと外に出ることはできない。同じネットワークの中の機器同士は通信可能。