dns
preconnect vs dns-prefetch resource hints
I’ve been researching the topic a bit lately and so far my (theoretical) conclusions are as follows: Browser support is high for both as of November 2022, when counting the real global usage of browsers (~94% vs ~83%) dns-prefetch = DNS and preconnect = DNS + TCP + TLS. Note that DNS lookup is quite … Read more
xn-- on domain, what it means?
Its the result of IDNA encoding; i.e. converting your unicode domain name to its ASCII equivalent which has to be done as DNS is not unicode-aware. The xn-- says “everything that follows is encoded-unicode”.
htaccess redirect all pages to single page
If your aim is to redirect all pages to a single maintenance page (as the title could suggest also this), then use: RewriteEngine on RewriteCond %{REQUEST_URI} !/maintenance.php$ RewriteCond %{REMOTE_HOST} !^000\.000\.000\.000 RewriteRule $ /maintenance.php [R=302,L] Where 000 000 000 000 should be replaced by your ip adress. Source: http://www.techiecorner.com/97/redirect-to-maintenance-page-during-upgrade-using-htaccess/
How to assign a domain name to node.js server? [duplicate]
You do not assign a domain to a node.js server, instead you load your app onto a machine which has an ip adress, which in your case is 42.12.251.830:4000. You then need to make sure your app is listening on the correct port, which on most servers is 80 using express it’s as simple as … Read more
What is the maximum length of a DNS name
With your way of counting, the domain name a.b.c.d.e. would be considered to be five characters long. It suspect that not many people will find that way of counting useful. That way of counting also makes the maximum length vary with the number of labels, so when you have four labels the maximum length is … Read more
How do I get my computer’s fully qualified domain name in Python?
The fully qualified domain name is returned by socket.getfqdn().
What does binding a Rails Server to 0.0.0.0 buy you?
Binding to 0.0.0.0 tells the service to bind to all IP addresses on your machine. Rails server used to do this by default, but with 4.2 changed to binding only to localhost. Basically if it’s only bound to localhost then it will only respond locally to either localhost or 127.0.0.1 which can’t work through a … Read more
Get domain name
Why are you using WMI? Can’t you use the standard .NET functionality? System.Net.NetworkInformation.IPGlobalProperties.GetIPGlobalProperties().DomainName;