Softaculous


Topic : Hetzner ip blocked by CSF?


Posted By: Joan1211 on April 11, 2023, 5:24 am
Hello

yesterday i disabled firewalld and i installed CSF via Webuzo.

I had many trouble to configure it.

Webuzo control panel was blocked, i finally found out that elastic search was using more memory than the CSF threshold. And it was sending me an email from my server which is not configured to send email. Therefore I had constant IMAP failure and this was banning me instantly.

I found out that there was a lot of email in the queue, after reding the email, i understaood and removed the alerting system from CSF.

Now i can access webuzo, but i still have some trouble. In the Webuzo/Security/IP block list, i have many times these address blocked:
- 185.12.64.2
- 185.12.64.1
- 0.0.0.0

I doesn't affect the usage of my website, but i do not understand what is the reason.

These address are the recursive DNS of Hetzner and they should not be blocked.

Therefore I whitelisted them from CSF and LFD.

But still, there are blocked on webuzo.

When i disable CSF firewall, the IP are not appearing in the IP block list
When i enable CSF firewall, the IP immediatly appeared as blocked.

I conclued that this problem comes from CSF configuration?

As I am not an expert, it is hard to find some solution to this problem. Thanks for any help.

Posted By: Joan1211 on April 11, 2023, 5:27 am | Post: 1
I forgot to mention that these iP do not appear in the
# sudo nano /etc/csf/csf.deny

So while it seems that it is a CSF configuration, Im not sure weather these address are blocked by CSF or something else.

Posted By: Brijesh on April 12, 2023, 8:24 am | Post: 2
Hi,

These IPs are not included by default in CSF configuration when installed via Webuzo.

It looks like CSF is detecting some false positive access causing these IPs to be blocked.

You will need to contact CSF team for more information on why these IPs are getting blocked.

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Posted By: Joan1211 on April 18, 2023, 12:37 pm | Post: 3
Problem solved by your team, and will be available in the next update.

Thank you @Brijesh


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