Hi I bought my first Virtual Private Server, mainly with the aim of learning about managing a server. I don't have any entries in my iptable, it's totally open but I still cannot to my server on ports other 80, 21 etc. For example I changed the port in httpd.conf from 80 to 90 and then from external host tried connecting to http://mywebsite:90 and it is not working.Within the localhost(i.e through ssh shell) I'm able to telnet to localhost 90 but only from outside it's not working. Is there any other firewall in CentOS other than iptables? Also does usually VPS providers block certain ports. I was of the impression since having a unique IP I would be full open in the internet. As part of my VPS there is a HYPERVM control panel but I couldn't find any option to open ports.
--ADDED--- Here is my output of iptables -L
Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination
Regarding apache I just changed to 90 to test if it works. I did it by changing listen 80 to listen 90. When it was in listen 80 it was working fine. Actually I figured this problem when I couldn't access webmin which runs on port 10000. So I just changed in apacha to confirm it.