Dear All
We have one Centos Server on Asterisk platform.We are trying to open one particular site from client machines which is our client portal.We have to upload data on that.When we trying to open that site somewhere its blocking and not opening.We did tracert and found one router down outside india.Did emailed to our ISP and they said its our server issue.I Tried to open that site with Data card and its working fine.Please let me know how can i check which port is blocking.
Thank You
Hi,
Is iptables running on the machine?
iptables -L -n
If so, you'll need to write a rule to grant access - you might have OUTPUT rules.
You can quickly test if iptables is to blame by (temporarily) disabling it, and telnetting to the destination server on the appropriate port.
Cheers,
ZB
Without even little knowledge of your network infrastructure, I don't think it's possible to just hand out the solution.
Please let us know how your clients are connecting to the server. Is there any external firewall in between? Which port are you trying to open? When you say "site", do you mean "website"?
Check whether the port has been enabled through firewall.