Iptables for Intranet Machine Access

Iptables for Intranet Machine Access
Intranet environment: PC-A: 192.168.56.101 iptables HOST: eth0: 10.0.86.100 (Internet Nic) eth1; 192.168.56.100 (intranet Nic) net. ipv4.ip _ forward changed to 1 method 1 (reboot failed): sysctl-w net. ipv4.ip _ forward = 1 Method 2: Modify/etc/sysctl. the corresponding item in the conf file is then effective for sysctl-p 2. iptables settings: iptables-t nat-a postrouting-s 192.168.56.0/24-j SNAT -- to-source 10.0.86.100 iptables-a forward-s 192.168.56.0/24-j ACCEPT iptables-a forward-d 192.168.56.0/ 24-j ACCEPT 3. now you can use the PC-A to access the Internet IP address, if the access domain name, you need to specify the DNS in the Intranet Machine