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LALATENDU KESHARI SWAIN
LALATENDU KESHARI SWAIN
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Firewall issue with CloudFlare

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Hi Team,

Wishing you and your family a very Happy and Prosperous New Year.

My ClearOS firewall is blocking the the request from CloudFlare ( May be it block the incoming request) .
Previously its working fine but currently its not working , I'm Sure there is no issue with CloudFlare , because when i change the A record to my AWS Server it working fine ( Work within 1 min).
My We Server behind the firewall (1 to 1 Nat is Enable)
If directly enter my static IP its working from world wide.
How to white list the cloudflare IP address in my firewall.
Or is there any other think to do.


Regards
Lalatendu
dnsmasq website web server Custom Firewall
In Web Site Questions
Friday, January 01 2021, 05:17 AM
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Responses (3)

  • Accepted Answer

    Nick Howitt
    Nick Howitt
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    Friday, January 15 2021, 07:15 PM - #Permalink
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    I've no idea on this one as Cloudflare do some funny proxying. I have them set up not to proxy. Do you perhaps use a self-signed cert on your server? You may want to go to their forums.
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  • Accepted Answer

    LALATENDU KESHARI SWAIN
    LALATENDU KESHARI SWAIN
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    Friday, January 15 2021, 06:22 PM - #Permalink
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    Nick Howitt wrote:

    I don't see how it can be blocking CloudFlare. We even use it as a ping target for syswatch (1.1.1.1). What, in particular, is being blocked? Is it your ClearOS external DNS resolver (from the IP Settings screen). You can check the IPS if you want. Attack Detector should not touch DNS lookups.



    Hi Nick ,

    Thank You for every time.
    You are really a Guru for me.
    I'm noob in this field still I'm trying to upgrade myself.

    My Issue is resolve

    In cloudflare previously I select

    Full : Encrypts end-to-end, using a self signed certificate on the server , but when i change it to https://i.ibb.co/n0k4929/CL2.png , Its work perfect .


    Not Working for this.
    https://i.ibb.co/18fmnNr/CL.png


    Regards
    Lalatendu
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  • Accepted Answer

    Nick Howitt
    Nick Howitt
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    Friday, January 01 2021, 09:38 AM - #Permalink
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    I don't see how it can be blocking CloudFlare. We even use it as a ping target for syswatch (1.1.1.1). What, in particular, is being blocked? Is it your ClearOS external DNS resolver (from the IP Settings screen). You can check the IPS if you want. Attack Detector should not touch DNS lookups.
    The reply is currently minimized Show
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