VOS3000 IPtables for port changing VOS3000 client and security

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

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

Leave a Reply

Your email address will not be published. Required fields are marked *