Feb 15 2015

Redirect Record

Posted by Vitalie Cherpec

We are introducing a new handy peseudo record, the REDIRECT record. This new feature will help you to configure HTTP redirects for your domains/subdomains from the web interface and git.

Problem

Sometimes you need to redirect a domain/subdomain to another URL, to achieve this you need a web server which will do the redirects and then you need to point the domains to this server from the DNS.

Solution

Now you can use LuaDNS to achieve this in a single step without the overhead of maintaining an external web server. We've implemented a redirection service integrated with your LuaDNS account. To add a HTTP redirect for a domain/subdomain all you need is to add a simple REDIRECT record to your configuration.

How it works

When you add a REDIRECT record the LuaDNS will configure the redirection service and will point the redirected domains/subdomains to it. There are three modes of redirection:

  • Relative redirect - the server issues a 301 redirect, the request path and query string are appended to destination URL
  • Exact redirect - the path and query string is discarded and visitors are redirected to destination URL with 301 status code
  • Frame masking - the destination is loaded in a HTML frame

Syntax:

-- @name   = relative name or '*'
-- @target = target url
-- @mode   = redirect mode (0=relative, 1=exact, 2=frame, default: 0)
-- @ttl    = cache TTL (default: user default TTL)
redirect(name, target, mode, ttl)

Example:

-- File: example.com.lua
-- _a variable is set by the system to zone name
-- _a = "example.com"

-- # Relative redirect
-- redirect apex/naked domain to www
-- Example: example.com/foo?q=param -> www.example.com/foo?q=param
redirect(_a, "http://www." .. _a .. "/")

-- # Exact redirect
-- redirect http://mail.example.com/* to http://mail.provider.com/
-- Example: http://mail.example.com/foo?q=param -> http://mail.provider.com/
redirect("webmail", "http://mail.provider.com/", 1)

-- # Frame redirect
-- redirect http://mail.example.com/ to http://www.provider.com/ using a HTML frame
redirect("mail", "http://mail.provider.com/")

Other Changes

  • Improved web interface
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