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TCP/UDP simple port-forward
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| #!/bin/bash | |
| FROM="1024" | |
| TO="443" | |
| DEST="x.x.x.x" | |
| # Flush nat rules | |
| iptables -t nat --flush | |
| # Exclude localhost | |
| iptables -t nat -A POSTROUTING ! -s 127.0.0.1 -j MASQUERADE | |
| # TCP Port Forward | |
| iptables -t nat -A PREROUTING -p tcp --dport "$FROM" -j DNAT --to-destination "$DEST:$TO" | |
| # UDP Port Forward | |
| iptables -t nat -A PREROUTING -p udp --dport "$FROM" -j DNAT --to-destination "$DEST:$TO" |
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