5 comments 10 minutes ago Hi all, We’re back with our 5th post.
If you’ve missed the previous posts, you can find them here.
We’ll be covering the latest news in the dns industry, including the dnscache, which is a very popular caching protocol.
For those who want a quick overview, here’s what the dscache is and how it works.
The dns cache is a set of small files that are loaded from a server’s DNS record lookup cache, so when a user requests a website, the DNS server sends back the cached data for that request.
If the server has already cached that data, the request can then be sent back to the server as a separate request.
That’s how we cache data from the web.
If your server is behind NAT, this caching is done in reverse.
The servers that the user has requested from are always served from the same IP address.
So the server that served the requests from you is always the same.
This allows for an excellent cache utilization rate, which helps mitigate server load and makes a site run more efficiently.
The downside of the dcache is that it’s not a full dynamic DNS.
If a DNS query is a static query, it doesn’t matter how much information the server provides.
But if the query contains information about the actual server that’s behind NAT and/or a DNS record that hasn’t been refreshed since the last request, the server will cache the query.
That means you may see a cached query from a website in your browser even if the DNS record was updated with the most recent version.
The most important thing to remember about the ddomain cache is that the DNS records are stored in an immutable form, which means that if you refresh the records, they will automatically expire and become available again for any future requests.
This makes it possible to update the records in real time, without needing to reboot the DNS servers.
If we want to do the same thing with the dhost cache, we can use a different approach, but this will require more code.
To get started with dhost caching, you need to install the dsite-cache module, which has a couple of features that will make it easy to use dhost for caching requests.
The first is that if the request comes in as a static page, the dwebcache module can take advantage of the DHTML markup language to provide an HTML5 renderer to load the requested page, which can be useful for rendering on mobile devices.
The second is that when a request comes from a user, the backend server can automatically load the server’s record lookup cached dnsparse file, which contains the current DNS records for that server.
We can then load the cached record into a cache.
Once loaded, the cached server record is cached and can be refreshed without reloading the duser cache.
For more details, see the dsites-cache-module documentation.
To use dsites, we’ll need to add a couple more modules to our existing dsite configuration.
This is done by adding the following to the ds site.dns configuration file: module dsite dns dns-cache dns caching module dsites dns resolvers module dn-cache resolv-retry-count resolver dns DNS dns record lookups module dns host caching This will tell dsite to use the dsparse cache for caching DNS records.
Theres also an option to use a server-specific DNS record cache.
When theres a DNS cache on your server, you may need to change your resolvable DNS name to use it, so that resolved requests will be routed to the cache server.
If so, add the following lines to your configuration file, and restart dsite: modules dsite module dhost modules ddomain,dhost cache-resolv dhost-resolver cache-nameservers,dnscache module dnameserv,dnameserve resolve dnsdns module dsparsec module dresolver,dresolverbose This will add the dnameserver cache to the resolvelv cache.
Then restart dsites and theres an easy way to load dns records into the cache.
You can then refresh the cache by reloading dns:// and /u/ when youre looking for a new record.
You’ll need a couple additional modules to make the cache fully functional.
The last one is dnshost, which allows us to configure a simple DNS server for a simple web application.
In this post, we will look at setting up the dsl to use, which we’ll do using dnsplay, a very handy tool for testing your DNS servers for issues.
If this is the first time youre using dsl, we highly recommend you read through our dsl configuration tutorial to understand