VOS3000 IPtables for port changing vos 3000 client and security

Please note that this document is for reference only we do not take any responsible for any data lost.

VOS3000 IPtables for port changing vos 3000 client and security


VOS3000 IPtables for port changing :
Use below rule to change your vos3000 client to access server on different port as 7899 or change as per your requirement

iptables -A PREROUTING -t nat -p tcp -m tcp –dport 1202 -j DNAT –to-destination :3720
iptables -A PREROUTING -t nat -p tcp -m tcp –dport 7899 -j DNAT –to-destination :1202
iptables -A PREROUTING -t nat -p tcp -m tcp –dport 1202 -j DNAT –to-destination :3720
iptables -A PREROUTING -t nat -p tcp -m tcp –dport 7899 -j DNAT –to-destination :1202
iptables -A PREROUTING -t nat -p tcp -m tcp –dport 3306 -j DROP
iptables -A PREROUTING -t nat -p tcp -m tcp –dport 2501 -j DROP
iptables -A PREROUTING -t nat -p tcp -m tcp –dport 1202 -j DROP
iptables -A PREROUTING -t nat -p tcp -m tcp –dport 1205 -j DROP
iptables -A PREROUTING -t nat -p tcp -m tcp –dport 143 -j DROP
iptables -A POSTROUTING -t nat -p tcp -m tcp –dport 7899 -j MASQUERADE
iptables -A POSTROUTING -t nat -p tcp -m tcp –dport 7899 -j MASQUERADE

Download  IPtables list and modify as per your requirement 
Download iptables
Edit and upload iptables.txt on your server and apply the iptables rule 
#iptables-restore  <  /your upload path/iptables.txt

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