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What port does dig use?
By default the dig command queries port 53 which is the standard DNS port, however we can optionally specify an alternate port if required. This may be useful if an external name server is configured to use a non standard port for some reason.
Does dig use resolv conf?
dig is a network administration command-line tool for querying the Domain Name System (DNS). When a specific name server is not specified in the command invocation, it uses the operating system’s default resolver, usually configured in the file resolv. conf. Without any arguments it queries the DNS root zone.
What is DNS propagation and why does it take so long?
What is DNS propagation and why does it take so long? ‘DNS propagation’ is a term used to describe the time frame after making any changes to your domain name. Such propagation will occur after any: Changes to your domain’s WHOIS information.
Why does DNS take so long to update cached information?
This is the essence of DNS propagation – it is the time required for DNS servers worldwide to update their cached information for a domain name. It is influenced by the TTL of DNS records that might have changed, but there are also other factors that could come into play.
Is it normal for DNS response time to be long?
Many DNS options out there are sufficient. Unless you’re experiencing an alarmingly large DNS response time close to or much longer than a second for a small to the medium-sized site, you’re probably in the clear. Although, this isn’t a hard and fast rule. Each site is different.
What should I do if my DNS server is slow?
Similarly, your hosting provider should also help you out with any DNS issues courteously and quickly. Otherwise, you could struggle with your site’s speed for the long haul. The DIG command does what’s called a DNS lookup, but only from your computer or another DNS of your choosing.