Firewall Administration (CSF Firewall via WHM)
Firewall blocks can be a rather common issue, especially if a user is trying to setup their email for the first time, or is wrestling with ftp or such.
o For first time clients, just setting up their email, it’s a very good practice to whitelist their ip, before they get in there and get all frustrated because they can’t make their email go.
o If somebody reports their site being down (blank white screen), but you’re not seeing it as down, it’s likely a firewall issue.
One of our long time clients (Ann Rankowitz) ran into a problem with her email the other day. Yep, turns out she was blocked by the firewall!
This is easy to check, and easy to fix, straight from WHM.
o Ask the user for their ip address. They can easily get this by googling for “what is my ip”.
o You can search the firewall for their ip address.
o And if it’s listed, remove it, and whitelist it.
o And even if they’re not blocked by the firewall, it they’re wrestling with email settings, odds are good that they could get blocked. So it’s a good practice to whitelist them anyway.
*Note:
The steps below apply only to the CSF firewall, which is currently what we’re running (as of c.4/2014).
For administering an APF firewall, see this article: Firewall Administration (APF Firewall, LEGACY)
See Also:
http://www.liquidweb.com/kb/csf-config-server-firewall-installation/
Searching for an IP Address in the Firewall:
(if a block rule is found, there’s an option to unblock them, right there on the search results page)
How to Whitelist an IP Address:
