LINUX NAT firewall configuration using IPTables HELP
I have got 3 PC's behind a LInux server NAT firewall, on a 192.168.1.0/24 subnet,
PC1 = 192.168.1.10
PC2 = 192.168.1.11
PC3 = 192.168.1.12
All PC's need to send mail by SMTP direct to my ISP mail server.
I need to RDP to PC 3 only from the Internet.
I don't want any other access from outside.
And Typical access inside the network between the PC's
Can someone please help me with the commands i would use to do this, ive been looking at it for a while now and i haven't got anywhere.
Thanks in advance. .