Litespeed Configuration Guide

Prerequisites

• LiteSpeed Web Server (OpenLiteSpeed or LiteSpeed Enterprise) installed and running

• Admin access to LiteSpeed WebAdmin Console

• A domain configured on a Virtual Host (e.g., litespeed.jtm-demo.com) with DNS pointing to your server

Step 1: Create an External App (Web Server)

Navigate to your Virtual Host, then open the External App tab and add a new Web Server definition with the following settings:

Field (Web Server Definition)	Example Value	Notes
Name	hash_proxy	Descriptive identifier referenced by rewrite rules
Address	https://hash.url.com	Full URL of backend (HTTP or HTTPS). Match your upstream scheme.
Max Connections	100	Range 1–2000. Tune based on backend capacity.
Connection Keepalive Timeout	60	Use persistent connections to improve performance; -1 disables.
Initial Request Timeout (secs)	60	Must be >= 1. Increase for slow upstreams.
Retry Timeout (secs)	1	Backoff window before retrying failed connections.
Response Buffering	No	Disable for streaming/low-latency responses.

Optionally set Environment variables and Notes as needed using PROPERTY=VALUE syntax.

If your backend uses HTTPS with a certificate that is self-signed or not publicly trusted, ensure your LiteSpeed build trusts the upstream or use HTTP to the backend within a private network.

Step 2: Enable and Add Rewrite Rules

Within the same Virtual Host, open the Rewrite tab.

1. In Rewrite Control, set Enable Rewrite to Yes. Optionally adjust Log Level.

2. In Rewrite Rules, click Edit and paste the following rules, then Save:

3. Gracefully restart LiteSpeed to apply the changes (Actions > Graceful Restart).

Please make sure to replace the values "hash" and "url.com" with your values from the DCP configuration page

RewriteEngine On 
# The E=proxy-host part forces the correct Host header to the backend 
RewriteRule ^/?hash(/.*)?$ http://hash_proxy/$1 [P,L,QSA,E=proxy-host:hash.url.com]

Result

Requests to /kndmjf on your domain will be proxied to the external app defined as kndmjf_proxy, preserving query strings and forwarding the correct Host header to the upstream.