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The error is more likely a Permission issue. Similar question was discussed here on Unix Stackexchange. You can try it and let us know your result.


Run this one command, no need to restart any service & server : # setenfore 0 To check selinux status : # getenforce or edit this file : /etc/sysconfig/selinux to include SELINUX=disabled Doing so will require a reboot.


I ended up figuring this out. It wasn't directly a firewall issue. I have two NICs, one for the LAN and another for the DMZ, to which the WAN IP is NAT'ed. The default route was over the LAN. When receiving packets from the internet, the server tried to respond via the default route on the LAN. Disconnecting from the LAN enabled the services to communicate ...


Are your services even listening on all interfaces? Please post the following command for example: # netstat -atpn | grep 80 | grep LISTEN tcp 0 0* LISTEN 2994/httpd if it does not show or the IP of the WAN then its not configured to listen where you are expecting it to.

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