As I was searching for a INNER JOIN problem in postgreSQL, I ran across this must awsome guide. With examples and all. Easy to overview. Starting from a very basic level, increasing to very in depth knowledge of postgres inner workings.
http://www.commandprompt.com/ppbook/x5802
Hashes: #postgreSQL #database #postgre #SQL
2009-10-12
Port Forwarding in Ubuntu with iptables
Assuming your ubuntu box already have NAT up and running, and you wish to connect directly to the internet from a machine behind your Router (Ubuntu, GNU/Linux-box).
iptables -A PREROUTING -t nat -i ##incomming interface## -p tcp --dport ##incomming port## -j DNAT --to ##destination IP##:##destination port##
For example:
iptables -A PREROUTING -t nat -i eth0 -p tcp --dport 8080 -j DNAT --to 10.1.249.250:80
When I wanted to access a web server behind my Ubuntu NAT-router in my home. Now I can surf to #mydomain#:8080 to access that internal web server at port 80.
Hashes: #linux #ubuntu #nat #port forwarding #iptables
iptables -A PREROUTING -t nat -i ##incomming interface## -p tcp --dport ##incomming port## -j DNAT --to ##destination IP##:##destination port##
For example:
iptables -A PREROUTING -t nat -i eth0 -p tcp --dport 8080 -j DNAT --to 10.1.249.250:80
When I wanted to access a web server behind my Ubuntu NAT-router in my home. Now I can surf to #mydomain#:8080 to access that internal web server at port 80.
Hashes: #linux #ubuntu #nat #port forwarding #iptables
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