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Have vm, interested in firewall and network arch overview

Hello,

I have a new vm, and I am starting to deploy a new rails application.

Before getting too deep into my application deployment, I wanted to take a moment and understand how my VM has been deployed at hostingrails.com.

I have done a nmap scan of my ip address, and it appears ports are being blocked somewhere, but I do not see iptables running on my vm.

Can someone from hostingrails.com give me an overview of the network architecture for virtual servers? Specifically, is there a firewall in front of my vm? If so, how can I control it if need be.

2008-05-23 01:16 AM

Hi - Please note our CentOS VPS image by default has a firewall called APF installed on it.

To unbock port **** in apf. Login to VPS via ssh and:
   
[~]vi /etc/apf/conf.apf

 
search for --> /   IG_TCP_CPORTS  

add the port to this line

      # Common ingress (inbound) TCP ports
      IG_TCP_CPORTS="20,21,22,25,53,80,110,143,443,3306,****"

[~]apf -r

2008-05-23 01:59 AM

HostingRails Support
Hello,

What about the outgoing connections?
APF says - "all accept by default" but I can't ssh or http from my VM

2008-11-13 10:55 AM

There was an issue with the firewall configuration of your VPS in the hardware node and we've fixed it. You should be able to ssh from your VPS now.

2008-11-13 01:06 PM

thanks

2008-11-13 02:00 PM


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