如果您想搭建一个IPV6网络,且实现全内网自动获取IPV6地址、域名解析,还要搭建IPV6网站……那本文可能算得上一篇非常nice的教程。
操作系统:CentOS7.5
应用软件:radvd、dhcp、bind
配置网络环境
启用ipv6
修改配置/etc/sysctl.conf:
net.ipv6.conf.all.disable_ipv6 = 0 net.ipv6.conf.default.disable_ipv6 = 0 net.ipv6.conf.lo.disable_ipv6 = 0 net.ipv6.conf.all.forwarding = 1
修改配置/etc/sysconfig/network:
NETWORKING_IPV6=yes IPV6FORWARDING=yes HOSTNAME=dhcpserver ONBOOT=yes
使配置生效并查看效果:
sysctl -p cat /proc/sys/net/ipv6/conf/all/forwarding
配置网卡
修改配置/etc/sysconfig/network-scripts/ifcfg-ens33:
PEERDNS=yes IPV6INIT=yes IPV6_AUTOCONF=no IPV6ADDR=2001:db8:8:1::1/64 IPV6FORWARDING=yes
systemctl restart network
安装并配置radvd
需要注意的是,radvd用于无状态自动配置地址,客户端通过网络接口接收路由器宣告的全局地址前缀,再结合接口ID形成全球单播地址,但是不能获取DNS。
yum -y install radvd
修改配置/etc/radvd.conf:
interface ens33 { AdvManagedFlag on; AdvSendAdvert on; AdvOtherConfigFlag on; AdvLinkMTU 1480; MinRtrAdvInterval 30; MaxRtrAdvInterval 100; prefix 2001:db8:8::/64 { AdvOnLink on; AdvAutonomous on; AdvRouterAddr on; }; };
备注:当我把radvd的prefix前缀改为96时,提示只能64,不知道为什么,见下图:
systemctl enable radvd systemctl start radvd
安装并配置DHCP
需要注意的是,dhcp用于有状态自动配置地址,客户端从服务器的地址池中配置地址,能获取DNS。
yum -y install dhcp
修改配置/etc/dhcp/dhcpd6.conf:
default-lease-time 2592000; preferred-lifetime 604800; option dhcp-renewal-time 3600; option dhcp-rebinding-time 7200; allow leasequery; option dhcp6.name-servers 2001:db8:8::1; option dhcp6.domain-search "dhcpserver"; option dhcp6.preference 255; option dhcp6.rapid-commit; option dhcp6.info-refresh-time 21600; dhcpv6-lease-file-name "/var/lib/dhcpd/dhcpd6.leases"; subnet6 2001:db8:8::/96 { range6 2001:db8:8::10 2001:db8:8::80; }
systemctl enable dhcpd6 systemctl start dhcpd6
这时,在其他计算机上就可以正常获取到IPV6地址了,同时自动获取DNS,如下图:
安装并配置DNS
yum -y install bind
本文省略named的详细配置方法,以下只是部分配置内容,通过添加一个正向解析举例而已,修改配置/etc/named.conf:
options { listen-on port 53 { any; }; listen-on-v6 port 53 { 2001:db8:8::1; }; }; zone "dhcpserver.com" IN { type master; file "dhcpserver.com.zone"; };
修改配置/var/named/dhcpserver.com.zone:
$TTL 1D @ IN SOA @ dhcpserver.com. ( 0 ; serial 1D ; refresh 1H ; retry 1W ; expire 3H ) ; minimum NS @ A 127.0.0.1 AAAA ::1 www A 127.0.0.1 www AAAA ::1
systemctl enable named systemctl start named
至此,DNS解析也开始正常工作。
附加知识
Windows下重新获取IPV6方法:
ipconfig /release6 ipconfig /renew6
Linux IPV6 SLAAC(无状态地址自动获取) 的网卡配置:
IPV6_AUTOCONF=no DHCPV6C=yes
如果您搭建了IPv6的网站,也可以通过IPv6地址访问,如下图:
原创文章禁止转载:技术学堂 » Linux搭建IPv6+DHCP+DNS服务器详解