suppose I were to get into a taxi after a night on the town and tell the driver
Linus's house when he asked me where we're headed unless the driver somehow
very creepily already knows where I live he'll probably tell me to stop being a
tool and give him an actual address where he can actually drop me off and
although that scenario has probably
occurred in plenty of taxi cabs where drivers have had to deal with people
that ran up way too high of a bab that night your computer or phone can have a
much easier time figuring out where to take you on the internet thanks to the
domain name system commonly referred to as DNS you see even though most of us
get to our favorite websites by punching in addresses like youtube.com or
vessel.com your browser actually needs to know the IP address of the site
you're trying to access so to do this it
sends a request to the DNS which is sort of like the internet's version of yellow
pages that matches a site URL or a
uniform resource locator to an IP address so a DNS request first goes to a
recursive name server which is typically operated by your internet service
provider but you can also use public servers managed by Google or other
organizations if your isp's resolver is having issues a recursive name server
might have the IP address of the website you want to access already stored but if
it doesn't it will go to one of 13 root
servers which manage requests for top level domains like or.org although that
seems like a tiny number of servers by the way they actually use redundant
physical Hardware all over the globe to make sure these requests are handled and
handled quickly your request is then
sent to the appropriate top domain server.com if you're trying to get to
YouTube for example which will then contact authoritative name servers that
contain a well authoritative list of IP
addresses and matching URLs which is updated whenever someone buys and
registers a domain once the IP address
you want is retrieved it's sent back to the recursive name server and then onto
your computer to save time in the future and make things more efficient both the
recurs name server and your own computer will cash DNS entries for a while so the
next time you want to visit YouTube you won't have to go through this whole
rigar Ral instead your computer will either know the correct IP right away or
it will be able to get it directly from the recursive server DNS usually works
fairly well for most people but if a website changes IP addresses this can
cause problems especially if your computer is trying to use its own own
cash this will usually manifest as lots of random 404 errors or taxi drivers
taking you to the wrong place if we were to hearken back to our original analogy
so if you're running Windows it's actually pretty easy to clear out your
DNS cach just by opening the command prompt as an administrator and entering
this command which hopefully will fix the problem however you could run into
more serious problems if a piece of malware has poisoned your DNS cache by
making DNS entries that are stored locally that point to malicious websites
for example an attacker could tell your PC to make
irs.gov point to the IP address of a
website running a tax scam that tries to convince you to give up your personal
information so if you're getting weird redirects like this running a reputable
anti-malware application may be able to help but despite its vulnerabilities DNS
has made the internet extremely easy to use for many people because thanks to it
we don't have to punch in numerical IP addresses like like phone numbers except
longer every time we want to surf the web and given how hard it is for people
to remember phone numbers that's just not a world I would want to live in
speaking of Worlds I wouldn't want to live in worlds without fresh books fresh
books let small business owners focus on
running their business rather than sitting in a dark corner in
front of their computer with only the lights of the screen to illuminate the
room working on all of their tax and
accounting information doesn't that sound horrible no freshbooks is
cloud-based and allows you to use your phone while you're on the go to track
your expenses log your hours create
professional invoices send them to your customers receive verification that your
customers have indeed read them and then request payment directly through
freshbooks own service they even have
the ability to accept deposits for your work through their platform so the work
is paid for on your schedule getting
started in freshbooks is extremely simple even if you're not a numbers
person especially if you're not a numbers person and you can try it for
free for 30 days by going to freshbooks.com
tequi Linked In the video description and entering Techquickie in the how did
You Hear About Us section so thanks for watching guys if you liked it liked it
dislike it dislike it other channels check there comment with video
suggestions down there subscribe and follow wherever those buttons are press
them come on see you next time