Need help?

Our experts have had an average response time of 13.52 minutes in October 2021 to fix urgent issues.

We will keep your servers stable, secure, and fast at all times for one fixed price.

Railgun cpanel – Easy Ways To Set Up And Fix Errors

by | Jul 6, 2020

Have you ever thought about how the cPanel Railgun boosts site speed?

Railgun is a web proxy system built for Cloudflare that makes web performance significantly faster by caching the dynamic contents.

In this article, we discuss how to set up the Railgun in cPanel as part of our Server Management Services.

What is Railgun?

Cloudflare is a content delivery network that secures and increases the website performance by acting as a proxy between the website viewer and the servers.

Attractively, Cloudflare improves site performance with the help of Railgun. It is an alternative compression technique for speeding up WAN performance. Therefore, it can make a fast connection between the server and the Cloudflare network.

The advantage of Railgun is the ability to cache Dynamic content efficiently. So that it can cache nearly 70% of web content(JS, CSS, & HTML) by  leveraging techniques.

What are the situations that Railgun can help?

1.  Geographical location – When a website has visitors from all over the world.

2. Less bandwidth-intensive – if the Bandwith costs a lot.

3. Dynamic Content –  If the site has lots of Dynamic content.


How to set up the Railgun on cPanel?

Here, let’s see how our Support Engineers setup Railgun on a cPanel server.

In order to use Railgun, the cPanel account must have Cloudflare enabled.

1. Once logged into cPanel, go to SOFTWARE section and click on the Cloudflare icon.

2. If the Cloudflare account is not yet created,  create an account with Cloudflare in cPanel and enable Cloudflare CDN for the domain and that your domain is already using Cloudflare CDN.

3. Then, log into the Cloudflare, select the domain name then click on HOME button.

4. Scroll down the page to Railgun™ and turn ON it.

That’s it. Railgun is activated now for the website.


CloudFlare Railgun installation On CentOS Server

Railgun is a single daemon that runs on a 64-bit system. The following pre-requirements are needed for the CloudFlare Railgun installation.

1. Root access to the server.

2. Railgun Activation Token from Cloudflare.

To install the Railgun, Our Support Engineers  follow the below steps,

1. Initially, login to the server as a root user.

2. Update the existing packages by using the command.

yum update

3. Again, install RPM to add the repository bu using the following command. Replace <VERSION> with the release version number that wants to install.

rpm -ivh<VERSION>.rpm

4. Then, install the Railgun package by executing the below command,

yum install railgun-stable

5. Next, modify the railgun.conf file by adding the below details.

activation.token = TOKEN_HERE

activation.railgun_host = PUBLIC_IP_OR_HOSTNAME

6. Finally, Start Railgun service.

service railgun start

That’s it!


How To fix cPanel Railgun set up errors

Frequently, customers face an error while installing the Railgun on the cPanel server is due to the lack of modules such as mod_cloudflare.

This should be installed on the server before installing Railgun.

Sometimes, there are errors such as memcached: connection failed (Unix socket) or dial tcp i/o timeout (TCP)

This means Railgun cannot connect to the memcached server and cause Railgun to stream (and not compress) responses.

So, our Support Engineers make sure that the memcached is running and accepting connections for the server.


[Need assistance to manage cPanel Railgun? We’ll help you.]



In short, Railgun is a web proxy system built for Cloudflare that makes web performance significantly faster by caching the dynamic contents. Today, we saw how our Support Engineers install cPanel Railgun and fix the related errors.


Never again lose customers to poor server speed! Let us help you.

Our server experts will monitor & maintain your server 24/7 so that it remains lightning fast and secure.


var google_conversion_label = "owonCMyG5nEQ0aD71QM";


Submit a Comment

Your email address will not be published. Required fields are marked *


Privacy Preference Center


Necessary cookies help make a website usable by enabling basic functions like page navigation and access to secure areas of the website. The website cannot function properly without these cookies.

PHPSESSID - Preserves user session state across page requests.

gdpr[consent_types] - Used to store user consents.

gdpr[allowed_cookies] - Used to store user allowed cookies.

PHPSESSID, gdpr[consent_types], gdpr[allowed_cookies]


Statistic cookies help website owners to understand how visitors interact with websites by collecting and reporting information anonymously.

_ga - Preserves user session state across page requests.

_gat - Used by Google Analytics to throttle request rate

_gid - Registers a unique ID that is used to generate statistical data on how you use the website.

smartlookCookie - Used to collect user device and location information of the site visitors to improve the websites User Experience.

_ga, _gat, _gid
_ga, _gat, _gid


Marketing cookies are used to track visitors across websites. The intention is to display ads that are relevant and engaging for the individual user and thereby more valuable for publishers and third party advertisers.

IDE - Used by Google DoubleClick to register and report the website user's actions after viewing or clicking one of the advertiser's ads with the purpose of measuring the efficacy of an ad and to present targeted ads to the user.

test_cookie - Used to check if the user's browser supports cookies.

1P_JAR - Google cookie. These cookies are used to collect website statistics and track conversion rates.

NID - Registers a unique ID that identifies a returning user's device. The ID is used for serving ads that are most relevant to the user.

DV - Google ad personalisation

IDE, test_cookie, 1P_JAR, NID, DV, NID
IDE, test_cookie


These are essential site cookies, used by the google reCAPTCHA. These cookies use an unique identifier to verify if a visitor is human or a bot.