how to check if port is active?

Junior_DBA · 11-05-2008, 06:03 AM

Hi, guys. I am in trouble. I am getting this annoying error

Error LInux 111 :connection refused

while i am trying to connect through port 1521.

I disabled firewall, but it doesn't help. How can I check if my port is not blocked somehow?

Thanks in advance.

prakash.akumalla · 11-05-2008, 06:21 AM

Use the command netstat to which ports are active and connected.

You can give netstat | grep xxx based on your usage.

Regards,
Prakash.

Junior_DBA · 11-05-2008, 06:27 AM

i tried netstat | grep 1521 got:
getname info failed.

As i unerstand my port 1521 is not active, how to activate it?

prakash.akumalla · 11-05-2008, 11:16 PM

Hi,

We should add the entry of that port in iptables.

Try iptables -h

Regards,
Prakash.

farslayer · 11-06-2008, 07:15 AM

what service are you trying to connect to on port 1521 (Oracle ) ?

a port won't just be open on it's own, is the service running ?

ps ax | grep oracle
netstat -alnp | grep 1521