[*] Kernel/User netlink socket [ ] Routing messages <*> Netlink device emulation [*] Network packet filtering (replaces ipchains)
<M> Connection tracking (required for masq/NAT) <M> FTP protocol support <M> IP tables support (required for filtering/masq/NAT) <M> limit match support <M> MAC address match support <M> Netfilter MARK match support <M> Multiple port match support <M> TOS match support <M> Connection state match support <M> Packet filtering <M> REJECT target support <M> Full NAT <M> MASQUERADE target support <M> REDIRECT target support <M> Packet mangling <M> TOS target support <M> MARK target support <M> LOG target support <M> ipchains (2.2-style) support <M> ipfwadm (2.0-style) support
options { listen-on port 54 {211.163.76.1;} directory "/var/named_cernet"; };
/usr/sbin/named -u named -c /etc/named_cernet.conf
#!/bin/bash#打开端口转发echo 1 > /proc/sys/net/ipv4/ip_forward#加载相关的内核模块/sbin/modprobe iptable_filter/sbin/modprobe ip_tables/sbin/modprobe iptables_nat#刷新所有规则/sbin/iptables -t nat -F
/sbin/iptables -t nat -A PREROUTING -p udp -s 163.105.0.0/16--dport 53 -i eth0 -j REDIRECT 54 /sbin/iptables -t nat -A PREROUTING -p tcp -s 163.105.0.0/16 --dport 53 -i eth0 -j REDIRECT 54 /sbin/iptables -t nat -A PREROUTING -p udp -s 166.111.0.0/16 --dport 53 -i eth0 -j REDIRECT 54 /sbin/iptables -t nat -A PREROUTING -p tcp -s 166.111.0.0/16 --dport 53 -i eth0 -j REDIRECT 54 /sbin/iptables -t nat -A PREROUTING -p udp -s 202.4.128.0/19 --dport 53 -i eth0 -j REDIRECT 54 /sbin/iptables -t nat -A PREROUTING -p tcp -s 202.4.128.0/19 --dport 53 -i eth0 -j REDIRECT 54 /sbin/iptables -t nat -A PREROUTING -p udp -s 202.112.0.0/15 --dport 53 -i eth0 -j REDIRECT 54 /sbin/iptables -t nat -A PREROUTING -p tcp -s 202.112.0.0/15 --dport 53 -i eth0 -j REDIRECT 54 …
/sbin/iptables -t nat -A POSTROUTING -p udp--sport 54 -o eth0 -j SNAT --to 211.163.76.1:53/sbin/iptables -t nat -A POSTROUTING -p tcp--sport 54 -o eth0 -j SNAT --to 211.163.76.1:53
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