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Access Denied – Sucuri Website Firewall error : How we resolve?

Trying to resolve the error ‘Access Denied – Sucuri Website Firewall’? We can help you with it.

The Sucuri Firewall is a cloud-based web application firewall. It blocks any hacks and attacks on the website instantly.

At Bobcares, we often get requests from our customers to fix this error as a part of our Server Management Services.

Today, let’ see how our Support Engineers fix this error.

Why does ‘Access Denied – Sucuri Website Firewall’ error occurs?

Sucuri Firewall is one of the best WordPress security plugins. Moreover, its main focus is on protecting the server and WordPress website.

Also, it protects the website from external attacks keeping the website safe.

In case, if the website blocks the Sucuri IP addresses unknowingly then access denied errors show up on the website.

For instance, the error message appears as shown below.

Access Denied Sucuri Website Firewall WordPress

 

How easily we fix it?

At Bobcares, where we have more than a decade of expertise in managing servers, we see many customers face problems with this error.

Now, let’s see how our Support Engineers fix this error.

Recently, one of our customers approached us with the error ‘Access Denied – Sucuri Website Firewall‘. He received this error while accessing his website.

On checking, we found that the user had a Sucuri firewall set on his WordPress. And this was blocking its own IP address due to which access denied error was displaying on the website.

So, we whitelisted the Sucuri IP addresses by adding them to the .htaccess file.

Here is the code that we used in the .htaccess file.

<FilesMatch ".*">
Order deny,allow
Deny from all
Allow from 192.88.134.0/23
Allow from 185.93.228.0/22
Allow from 66.248.200.0/22
Allow from 208.109.0.0/22
Allow from 2a02:fe80::/29
</FilesMatch>

Thereafter, we restarted the Apache service.

service httpd restart

Finally, this resolved the error.

 

Whitelisting with IPtables

In addition, we also whitelist the IP addresses in the server according to the firewall used. In case, if we are using IPTables then we will whitelist the IP addresses of Sucuri in IPTables firewall.

For example, we assistedto whitelist the range of IP address in IPTables as follows.

Initially, we Logged into the server via SSH.

Thereafter, we allow incoming connections from 192.88.134.0/23

iptables -A INPUT -i eth1 -s 192.88.134.0/23 -j ACCEPT

Then allow outgoing connections to 192.88.134.0/23

iptables -A OUTPUT -i eth1 -d 192.88.134.0/23 -j ACCEPT

Thus, we whitelist the range of IP address. Here we have to whitelist the rest of IP address range of Sucuri as above.

 

[Need any assistance with this error? – We’ll help you]

 

Conclusion

In short, the error ‘Access Denied – Sucuri Website Firewall’ occurs when the Sucuri IP address is blocked in the server. Today, we saw how our Support Engineers fixed this error by whitelisting the Sucuri IP address.


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