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accepted AWS VPC + IPtables + NAT: Port Forwarding is not working
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awarded  Popular Question
May
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comment Software VPN connection to Amazon AWS VPC private instance
@MohyedeenN, I am going through similar thoughts. I have a question. Apart from what you have suggested above, Do I have to configure VPC security groups rules to allow traffic from VPN Server (in pub subnet) to other resources (In Private subnet). And, also security group rules in Private subnet to accept traffic from VPN server in Pub subnet ? It sound logical to me though. Thanks. and +1.
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revised Amazon AWS: Can I attach volumes at runtime?
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Mar
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answered Accessing Amazon S3 from a private VPC subnet
Mar
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answered Amazon AWS: Can I attach volumes at runtime?
Jan
31
comment AWS VPC + IPtables + NAT: Port Forwarding is not working
Thanks. +1 for your efforts. Your MASQUERADE command is not helpful in my case. May be I am missing something. The Only MASQUERADE command that gets me flying is the the one I have mentioned in my answer.
Jan
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awarded  Teacher
Jan
30
comment Iptables MASQUERADE: What is the advantage/disadvantage between these two commands?
I have dumped whatever I could regarding the VPC setup in the question I linked in my post. Regarding the routing info, AWS VPC handles that and I have no control over it neither I know how it works behind the curtains. I highly appreciate your time and explanation. I am researching further and if I fail to find anything meaningful, I shall be accepting this answer.
Jan
30
revised Iptables MASQUERADE: What is the advantage/disadvantage between these two commands?
added 464 characters in body; edited title
Jan
29
comment Iptables MASQUERADE: What is the advantage/disadvantage between these two commands?
Thanks. So per you input, I modified my rule a bit and now iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE is working but it would still be a broad rule per you suggestions. If I put iptables -t nat -A POSTROUTING -o eth0 -s 10.0.0.0/16 -j MASQUERADE, then it isn't working. If I add a -s 10.0.0.0/16 to the rule which will restrict it to this specific IP range, then the rule does not work. So I am only left with using the broad rule. I don't know whether this is good. Could you imagine what else should I put to make my rule restrictive. Thanks for your time. +1.
Jan
29
comment Iptables MASQUERADE: What is the advantage/disadvantage between these two commands?
Hey there you coward downvoter...don't you have guts to leave a comment why you are downvoting...
Jan
29
asked Iptables MASQUERADE: What is the advantage/disadvantage between these two commands?
Jan
29
answered AWS VPC + IPtables + NAT: Port Forwarding is not working