使用acfs-sfs3-14.04.3-2-server-i386.iso 架设NAT DHCP ROUTER

1.下载ISO
http://free.chc.edu.tw/pub/iso/acfs-sfs3-14.04.3-2-server-i386.iso

环境说明
(1)网卡p1p2是接到对外的网路线WAN ，使用固定IP 192.168.32.153，闸道192.168.32.254
(2)网卡p1p2是接到对外的网路线WAN，使用PPPoE
网卡p1p1是接到对内的网路线LAN，使用固定IP 172.20.3.254。需做DHCP给LAN：172.20.3.100~172.20.3.200。

2.设定网卡资料/etc/network/interfaces
$sudo pico /etc/network/interfaces
auto lo
iface lo inet loopback

# IPV4 p1p1连接到LAN
auto p1p1
iface p1p1 inet static
address  172.20.3.254
netmask 255.255.255.0

(1)网卡p1p2是接到对外的网路线WAN
# IPV4 p1p2连接到WAN
auto p1p2
iface p1p2 inet static
address  192.168.32.153
netmask 255.255.255.0
gateway  192.168.32.254 (2)若是使用PPPoE来连线   
a.安装    $sudo apt-get install pppoeconf    
b.设定    $sudo pppoeconf    
接下来按照图示设定，输入帐号、密码与开机启动等设定
3.设定IP转址/etc/sysctl.conf $sudo pico /etc/sysctl.conf 直接在最后面加上这三句net.ipv4.ip_forward = 1 net.ipv6.conf.all.forwarding = 1 net.ipv4.conf.all .accept_source_route = 1
4.安装dhcp与设定 $sudo apt-get install isc-dhcp-server $sudo pico /etc/dhcp/dhcpd.conf ddns-update-style none; option domain-name "XXXX.chc.edu. tw"; option domain-name-servers 168.95.1.1, 8.8.8.8; default-lease-time 3600; max-lease-time 7200; log-facility local7;
subnet 172.20.3.0 netmask 255.255.255.0 {
  range 172.20.3.100 172.20.3.200;
  option routers 172.20.3.254;
}
5.编修与开机启用防火墙/bin/firewall.sh $sudo pico /bin/firewall.sh (1)EXT_IF ="p1p2"(2)EXT_IF="ppp0" INT_IF="p1p1" $sudo pico /etc/rc.local 加入 /bin/firewall.sh
6.修改dhcp设定档/etc/default/isc-dhcp-server $ sudo pico /etc/default/isc-dhcp-server INTERFACES="p1p1"
7.关闭主机时，会出现错误讯息AH00558: apache2: Could not reliably determine the server's fully qualified domain name处理方法如下： $sudo echo "ServerName ubuntu.mydomain.com " >> /etc/apache2/httpd.conf

哈哈,顶你了哦.

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哈哈,顶你了哦.

不错，看看。

回复一下................

哈哈,顶你了哦.