If you'd like to go even further then study some docs: start here then below then listed here and off target, read the man site for iptables: man iptables
The DSR method will break all other communication amongst the two nodes. The DSR technique is actually only correct in the event the server tackle just isn't the key IP of any of your hosts. Just about every host need to possess a Key IP, which isn't the DSR IP.
The exact wording from the documentation is: It should only be applied with dynamically assigned IP (dialup) connections: Should you have a static IP deal with, you should make use of the SNAT concentrate on.
The command iptables no more acknowledges One of the more commonly utilized possibilities when defining regulations: --dport.
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I'm also wanting to define a customized chain (impressed by this query) to accept tcp & udp connections to ensure that I don't have to determine two procedures for all the things which i desire to empower tcp and udp for (such as a Minecraft or Terraria server, or Yet another assistance fully). But even this doesn't work:
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Diego WoitasenDiego Woitasen 97155 silver badges1212 bronze badges 3 Also, it will have to specify a protocol which includes the concept of ports, as @FalconMomot pointed out in the remark before.
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Whatever, soon after I do a "support iptables restart" or conserve, the ports remain showing for being closed by using telnet (from other devices on same network) and shut through port scanning software program. Any thoughts?
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Port forwarding doesn't get dealt with with the INPUT chain, so you don't need to open the port while in the INPUT chain. It does get managed from the FORWARD chain, however. Be cautious on that.