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标题: [技术文章] 网通与电信双线服务器实施的配置(Linux) [打印本页]

作者: shillan    时间: 2007-5-22 22:32     标题: 网通与电信双线服务器实施的配置(Linux)

公司新发展了一个双线机房,为解决南北访问的问题,我把服务器托管到一个双线机房。经过反复调试,终于完成相应的配置。现将配置过程简明记录如下,供大家参考。

一、服务器状态
网通使用第一块网卡(eth0):
ip:218.57.200.242
掩码:255.255.255.0
网关:218.57.200.1
dns1:202.102.152.3
dns2:202.102.128.68

电信使用第二块网卡(eth1):
ip:222.173.254.21
掩码:255.255.255.240
网关:222.173.254.17
dns1:219.146.0.130
dns2:219.150.32.132

二、配置网卡:

# vi /etc/sysconfig/network-scripts/ifcfg-eth0
device=eth0
onboot=yes
bootproto=none
ipaddr=218.57.200.242
netmask=255.255.255.0
gateway=218.57.200.1
type=ethernet
userctl=no
ipv6init=no
peerdns=yes

#vi /etc/sysconfig/network-scripts/ifcfg-eth0
device=eth1
onboot=yes
bootproto=none
ipaddr=222.173.254.21
netmask=255.255.255.240
gateway=222.173.254.17
type=ethernet
userctl=no
ipv6init=no
peerdns=yes

# vi /etc/sysconfig/network-scripts/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,增加网通和电信两个路由表
252 cnc
251 tel

设置网通的路由表
# ip route add 218.57.200.0/24 via 218.57.200.242 dev eth0 table cnc
# ip route add 127.0.0.0/8 dev lo table cnc
# ip route add default via 218.57.200.1 dev eth0 table cnc

设置电信的路由表
ip route add 222.173.254.0/24 via 222.173.254.21 dev eth1 table tel
ip route add 127.0.0.0/8 dev lo table tel
ip route add default via 222.173.254.17 dev eth1 table tel

制定策略,让222.173.254.21的回应数据包走电信的路由表路由,218.57.200.242的回应数据包走网通的路由表路由
ip rule add from 222.173.254.21 table tel
ip rule add from 218.57.200.242 table cnc

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 218.57.200.242 netmask 255.255.255.0 gw 218.57.200.1
eth1 net 222.173.254.21 netmask 255.255.255.240 gw 222.173.254.17

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 222.173.254.17

增加出口路由策略,客户端是网通的走网通线路,其余走电信线路。
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 www.zhyh.org.
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 /usr/local/apache/conf/httpd.conf
namevirtualhost 218.57.200.242:80
namevirtualhost 222.173.254.21:80

servername xxx.com
documentroot /www/html/
serveradmin webmaster@xxx.comerrorlog logs/zhyh.org-error_log

servername www.zhyh.org
documentroot /var/www/html/zhyh.org
serveradmin webmaster@zhyh.org
errorlog logs/zhyh.org-error_log
customlog "|/usr/local/sbin/cronolog /var/log/httpd/zhyh.org-access_log.%y%m%d" combined
作者: sterok    时间: 2007-6-4 17:43

巧用dos命令实现文件合并隐藏秘密




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