Nginx Whitelist IP On Cloudflare
What is Nginx Whitelisting?
Nginx whitelisting is a process of creating a list of IP addresses that are allowed to access your website. This list can be used to block unauthorized access to your site or to limit the types of requests that can be made to it. Whitelisting IPs is a common practice among larger websites to protect against DDoS attacks and other malicious requests. By only allowing access to trusted IPs, you can prevent evasion of your website’s security measures.
CloudFlare is a popular web proxy service that provides many security and performance features. They also offer IP whitelisting, which can be used to control incoming and outgoing connections to your website. This is especially useful if you don’t want rogue traffic hitting your site, as IP whitelisting will block any request that don’t originate from a trusted IP.
How to Whitelist IPs on Cloudflare
If you want to whitelist IPs on Cloudflare, the first step is to create Access Rules. These are lists that define which requests should be allowed through the proxy, and which ones should be blocked. To create an Access Rule, you’ll need to add a list of IP addresses using the Cloudflare dashboard. Select “Add Rule” from the main Whitelist menu, and then enter a list of the IPs you want to whitelist.
Once you have added the IPs, click “Save” to apply the changes. CloudFlare will then start whitelisting any requests originating from the IPs you have added. It is also possible to edit the Access Rules at any time, so it’s easy to make changes or add more IPs.
Whitelisting IPs On Your Nginx Server
It’s also possible to configure your Nginx server to whitelist certain IPs. This is done by creating an access list that defines which IPs are allowed to access the site. To do this, open the nginx.conf file located in the root of your Nginx installation directory. Scroll down to the http-block section and add the following code at the bottom of the section:
Replace the IP addresses in the code with the IPs you want to whitelist on your server. You’ll also need to add a directive to the server section of the nginx.conf file. This will tell Nginx to use the IP whitelist added in the previous step. Add the following code to the server section:
Finally, save the changes and restart Nginx to apply the configuration changes. All requests that originate from the whitelisted IPs will now be allowed access to the server.
Using CloudFlare to Merge Nginx and CloudFlare Whitelisting
In some cases, you may want to use both CloudFlare and Nginx whitelisting to protect your website. The good news is that it’s possible to merge these two lists by configuring your Nginx server to use the CloudFlare-managed IP whitelist. To do this, open the Nginx configuration file and add the following block:
The above code will tell Nginx to use the CloudFlare-managed whitelist instead of the one defined on the server. Save the changes and then restart Nginx. All requests coming from the CloudFlare IP whitelist will now be allowed access to the site. You can add and manage your CloudFlare whitelisted IPs directly in the CloudFlare dashboard.
Advantages of Whitelisting IPs on CloudFlare
Whitelisting IPs on CloudFlare has a number of advantages over whitelisting them on your own server. Firstly, the CloudFlare whitelist is updated constantly, so your website is always protected against the latest threats. Secondly, the CloudFlare access rules are global, so you don’t need to edit the server configuration when you want to whitelist new IPs. Finally, CloudFlare also provides analytics that allow you to monitor and control who is accessing your website.
Nginx whitelisting is an effective way to protect your website from malicious requests. You can configure your Nginx server to accept only requests from trusted IPs, or you can use CloudFlare to manage your IP whitelist. Setting up access rules on CloudFlare is easy and offers a number of advantages over maintaining your own whitelist.
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