一、网络参数
网通使用第一块网卡(eth0)：
IP：210.82.37.149
掩码：255.255.255.224
网关：210.82.37.158
铁通使用第二块网卡(eth1)：
IP：222.35.92.242
掩码：255.255.255.252
网关：222.35.92.241
二、配置网卡：
# vi /etc/sysconfig/networking/profiles/default/ifcfg-eth0
DEVICE=eth0
ONBOOT=yes
IPADDR=210.82.37.149
NETMASK=255.255.255.224
GATEWAY=210.82.37.158
TYPE=Ethernet
# vi /etc/sysconfig/networking/profiles/default/ifcfg-eth1
DEVICE=eth1
ONBOOT=yes
IPADDR=222.35.92.242
NETMASK=255.255.255.252
GATEWAY=222.35.92.241
TYPE=Ethernet
# vi /etc/sysconfig/networking/profiles/default/route-eth1
GATEWAY0=218.57.200.1
NETMASK0=255.255.255.0
ADDRESS0=218.57.200.242
# vi /etc/sysconfig/networking/profiles/default/resolv.conf
nameserver 202.102.152.3
nameserver 202.102.128.68
三、配置路由表
# vi /etc/iproute2/rt_tables，增加网通和铁通两个路由表
252 cnc
251 crtc
设置网通的路由表
ip route add 210.82.37.128/27 via 210.82.37.149 dev eth0 table cnc
ip route add 127.0.0.0/8 dev lo table cnc
ip route add default via 210.82.37.158 dev eth0 table cnc
设置铁通的路由表
ip route add 222.35.92.240/30 via 222.35.92.242 dev eth1 table crtc
ip route add 127.0.0.0/8 dev lo table crtc
ip route add default via 222.35.92.241 dev eth1 table crtc
制定策略，让222.35.92.242的回应数据包走铁通的路由表路由，210.82.37.149的回应数据包走网通的路由表路由
ip rule add from 210.82.37.149 table cnc
ip rule add from 222.35.92.242 table crtc
修改IP转发文件
# vi /etc/sysctl.conf
net.ipv4.ip_forward = 1
net.ipv4.conf.default.rp_filter = 1
kernel.sysrq = 0
设置静态路由表文件
# vi /etc/sysconfig/static-routes
eth0 net 210.82.37.149 netmask 255.255.255.224 gw 210.82.37.158
eth1 net 222.35.92.242 netmask 255.255.255.252 gw 222.35.92.241
将从两个WAN口出去的数据包进行IP伪装masquerade
# /sbin/modprobe ip_conntrack_ftp
# /sbin/modprobe ip_nat_ftp
# /sbin/iptables -t nat -A postrouting -o eth0 -j masquerade
# /sbin/iptables -t nat -A postrouting -o eth1 -j masquerade
设置默认网关为网通
# route add default gw 210.82.37.158
增加出口路由策略，客户端是铁通的走铁通线路，其余走网通线路。
ip rule add to 121.16.0.0/13 table cnc
ip rule add to 121.24.0.0/14 table cnc
ip rule add to 121.28.0.0/15 table cnc
ip rule add to 121.30.0.0/16 table cnc
ip rule add to 121.31.0.0/16 table cnc
其余省略...
刷新路由表
ip route flush cache
四、配置DNS
在服务器上配置自己的DNS解析，将域名服务器商处的域名解析指向服务器。
这样，来自网通的查询，将反馈网站网通的IP，其余反馈电信的IP。
配置named.conf
view "cnc" {
match-clients {121.16.0.0/13;121.24.0.0/14;121.28.0.0/15;121.30.0.0/16;121.31.0.0/16;121.47.0.0/16;121.76.0.0/16;121.77.0.0/16;122.192.0.0/14;122.198.192.0/18;123.199.128.0/20;124.108.40.0/21;124.128.0.0/13;124.160.0.0/16;124.161.0.0/16;124.162.0.0/16;124.163.0.0/16;其余省略...;}
recursion yes;
zone "zhyh.org" {
type master;
file "/var/named/zhyh.org.cnc";
};
};
view "other" {
match-clients { any; };
recursion no;
zone "zhyh.org" {
type master;
file "/var/named/zhyh.org";
};
};
配置zhyh.org.cnc，对应网通IP
$TTL 86400
@ IN SOA zhyh.org. root (
2006111800 ; Serial
28800 ; Refresh
14400 ; Retry
3600000 ; Expire
86400 ) ; Minimum
IN NS zhyh.org.
IN A 218.57.200.242
IN MX 10 mail
www IN A 218.57.200.242
ns1 IN A 218.57.200.242
ns IN A 222.173.254.21
mail IN A 218.57.200.242
1 IN PTR localhost.
配置zhyh.org，对应电信IP
$TTL 86400
@ IN SOA zhyh.org. root (
2006111800 ; Serial
28800 ; Refresh
14400 ; Retry
3600000 ; Expire
86400 ) ; Minimum
IN NS zhyh.org.
IN A 222.173.254.21
IN MX 10 mail
www IN A 222.173.254.21
ns IN A 222.173.254.21
ns1 IN A 218.57.200.242
mail IN A 222.173.254.21
1 IN PTR localhost.
配置222.173.254.zone、218.57.200.zone做反向解析；
$TTL 86400
@ IN SOA zhyh.org. root.zhyh.org. (
2006111813
3600
7200
3600000
86400 )
IN NS localhost.
242 IN PTR .
242 IN PTR ns1.zhyh.org.
242 IN PTR mail.zhyh.org.
五、配置apache，做好虚拟主机设置
# vi /etc/httpd/conf/httpd.conf
NameVirtualHost 218.57.200.242:80
NameVirtualHost 222.173.254.21:80
ServerName zhyh.org
DocumentRoot /var/www/html/
ServerAdmin
ErrorLog logs/zhyh.org-error_log
CustomLog "|/usr/local/sbin/cronolog /var/log/httpd/zhyh.org-access_log.%Y%m%d" combined
RewriteEngine On
RewriteRule ^(.*)/htm/(.*)$ $1.php?$2
ServerName
DocumentRoot /var/www/html/zhyh.org
ServerAdmin
ErrorLog logs/zhyh.org-error_log
CustomLog "|/usr/local/sbin/cronolog /var/log/httpd/zhyh.org-access_log.%Y%m%d" combined
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