而且在指定IP地址时,可以同时指定多个IP地址,每个IP用"逗号"隔开,但是,-s选项与-d选项并不能一次性的指定一段连续的IP地址范围,如果我们需要指定一段连续的IP地址范围,可以使用iprange扩展模块。 使用iprange扩展模块可以指定"一段连续的IP地址范围",用于匹配报文的源地址或者目标地址。 iprange扩展模块中有两个扩...
iptables -t nat -I PREROUTING -p tcp -m multiport --dport 80,443,8080 -j DNAT --to-destination 192.168.1.2 注意:–to-destination 参数后,使用”-“表示起始端口和结束端口之间的范围。 MASQUERADE作用是,从服务器的网卡上,自动获取当前ip地址来做NAT,就不用手动指定转换的目的IP了,实现了动态的SNAT。
Chain PREROUTING (policy ACCEPT) target prot opt source destination Chain POSTROUTING (policy ACCEPT) target prot opt source destination SNAT all -- 192.168.0.0/24 anywhere to:211.101.46.235 Chain OUTPUT (policy ACCEPT) target prot opt source destination 1. 2. 3. 4. 5. 6. 7. 8. 9. 10....
-j DNAT --to-destination $(shuf -n1 ipipgo_proxy_list.txt) done This magic code randomly selects targets from a pool of proxy IPs provided by ipipgo and dynamically assigns 20% of traffic to the 10000-10020 port range. A financial company utilized this solution to successfully reduce th...
1. iptables 是啥。 `iptables` 就像是你电脑或服务器的门卫,它可以决定哪些网络数据包能进入、哪些要出去、哪些要被拦截。通过设置不同的规则,你可以控制网络访问,增强网络安全性。 2. 查看规则。 2.1 查看所有规则。 如果你想知道当前 `iptables` 都设置了哪些规则,就可以使用下面的命令: bash. iptables -L....
num target prot opt source destination [root@test ~]# Why above output is shown instead of just displaying that firewall is stopped or service is not running ? We could see the iptable service has been started on few topsweb servers, which were in stopped state earlier. ...
sudo iptables\--table nat\--delete OUTPUT\--protocol tcp\--match tcp\--dport8080\--jump DNAT\--to-destination 10.0.0.11:8080 and add a more specific rule: Copy 123456789 sudo iptables\--table nat\--append OUTPUT\--destination 192.168.0.100/32\--protocol tcp\--match tcp\--dport8080\...
num – 指定链中的规则编号 target – 前面提到的target的特殊值prot – 协议:tcp, udp,icmp等source – 数据包的源IP地址destination – 数据包的目标IP地址 三、清空所有iptables规则 在配置iptables之前,你通常需要用iptables --list命令或者iptables-save命令查看有无现存规则,因为有时需要删除现有的iptables规则:...
Here we have left out our ICMP rule because we will later show you how to insert this rule in a specific location. $ sudo ip6tables -L -v Chain INPUT (policy ACCEPT 0 packets, 0 bytes) pkts bytes target prot opt in out source destination 0 0 ACCEPT all lo any anywhere anywhere 11...
Once you configure both the web server and the proxy firewall, you can create specific forwarding rules that will: Accept traffic requests via the firewall's public IP address. Forward the packets to the firewall's private interface.