WEBVTT

00:00:00.160 --> 00:00:07.279
ah wouldn't it be nice if everything in life were 100 reliable i mean your car

00:00:05.839 --> 00:00:11.280
your computer your flaky girlfriend who swears there's

00:00:09.040 --> 00:00:15.200
no one else in the picture unfortunately few things are truly reliable and that

00:00:13.360 --> 00:00:20.240
includes the websites that you count on to be around when you need them even

00:00:17.279 --> 00:00:24.480
those sometimes go down but riley don't most big sites live on powerful

00:00:22.160 --> 00:00:28.720
geo-replicated servers dedicated to web hosting how does this happen

00:00:26.880 --> 00:00:32.640
well there are plenty of reasons a simple but common issue is that some

00:00:30.640 --> 00:00:37.120
websites aren't actually set up to deal with tons of traffic you see just like

00:00:34.880 --> 00:00:41.600
your home pc and internet connection a web hosting server only has so much

00:00:39.360 --> 00:00:46.640
bandwidth on its incoming connection and also only has so much processing power

00:00:44.239 --> 00:00:50.480
to handle all of those requests so if a smaller website isn't equipped for a

00:00:48.480 --> 00:00:54.399
sudden influx of visitors because some celebrities compromising photos got

00:00:52.320 --> 00:00:58.399
posted there you might have a hard time accessing it and you also might want to

00:00:56.320 --> 00:01:03.280
think about your life choices a similar but more malicious cause of website

00:01:00.320 --> 00:01:07.200
difficulties is the dreaded ddos attack so the idea here is to do what we just

00:01:05.199 --> 00:01:12.799
described overwhelm a server with requests rendering it effectively

00:01:09.200 --> 00:01:16.000
inaccessible except it's on purpose the

00:01:12.799 --> 00:01:18.000
first d in ddos stands for distributed

00:01:16.000 --> 00:01:22.640
meaning many connected devices some of which may be part of a botnet attack a

00:01:20.320 --> 00:01:27.680
server at once the motivations behind these types of attacks vary greatly as

00:01:25.200 --> 00:01:31.920
wise old alfred put it some men just want to watch the world

00:01:29.600 --> 00:01:36.560
bone and you can learn more about them right up here but a server being too

00:01:34.400 --> 00:01:40.320
busy to handle requests is just one reason it can go down sometimes there

00:01:38.640 --> 00:01:44.720
can be problems with the hosting service itself which can be caused by anything

00:01:42.320 --> 00:01:49.200
from a hardware or software problem to a malware attack to even a natural

00:01:46.720 --> 00:01:53.680
disaster and that's where things really hit the fan because if one of the web's

00:01:51.280 --> 00:01:59.040
major hosting providers is affected the outages can be widespread for example

00:01:56.560 --> 00:02:04.560
cloudflare handles hosting for a billion ip addresses and 10 of the fortune 1000

00:02:02.560 --> 00:02:10.399
so a problem with a service like that can cause outages or slowdowns all over

00:02:07.040 --> 00:02:12.560
the internet as it did on july 2nd 2019

00:02:10.399 --> 00:02:17.040
when a ton of sites went down due to a huge spike in CPU usage another common

00:02:15.360 --> 00:02:20.720
issue is a problem with the site's address sometimes a website will need to

00:02:19.040 --> 00:02:24.080
change its ip address which you can learn more about up here

00:02:22.400 --> 00:02:28.080
so trying to punch in the domain name that you're used to will result in the

00:02:26.000 --> 00:02:33.200
browser being pointed to the wrong ip address and likely a page not found

00:02:30.879 --> 00:02:36.400
error until the domain name system or dns gets updated to reflect the new

00:02:35.519 --> 00:02:41.840
address other kinds of simple user errors are surprisingly common a system

00:02:40.000 --> 00:02:46.560
administrator can forget to renew the domain name leave a cable unplugged

00:02:44.160 --> 00:02:51.440
misconfigure ports neglect to set up backups and even just spill their diet

00:02:48.480 --> 00:02:55.920
coke onto a server rack yet klutz and finally sometimes the issue doesn't stem

00:02:53.360 --> 00:02:59.599
from a problem at all sites need maintenance to update code or hardware

00:02:58.000 --> 00:03:03.680
and oftentimes they have to be taken offline for a short while while this

00:03:01.519 --> 00:03:07.599
happens now many organizations have plans for this to minimize downtime such

00:03:06.000 --> 00:03:11.440
as performing maintenance at times when they're not expecting much traffic and

00:03:09.599 --> 00:03:14.959
larger companies like google can serve users from an alternate location if one

00:03:13.680 --> 00:03:20.080
of their other servers needs to be worked on however if an error occurs

00:03:17.519 --> 00:03:24.159
during an update downtime can last much longer than expected and a final tip is

00:03:22.159 --> 00:03:27.680
that if you can't access a website but you're not sure whether the site is

00:03:25.840 --> 00:03:32.560
actually down or not there's a great site called down for everyone or just

00:03:30.000 --> 00:03:34.959
me.com that you can use to check in on all the most important hotspots on the

00:03:34.159 --> 00:03:41.760
web speaking of checking in you're going to want to check out today's sponsor drop

00:03:40.000 --> 00:03:46.640
they're collaborating with sennheiser on the pc37x gaming headset it's got an

00:03:44.879 --> 00:03:52.560
open back design with the same driver design used in the hd 598 and hd 6000

00:03:49.920 --> 00:03:57.280
headphones to get clear audio for gaming and music its mic is optimized to handle

00:03:55.200 --> 00:04:01.599
unpleasant pops and hisses and also features noise cancelling the mic also

00:03:59.760 --> 00:04:05.680
automatically mutes by simply rotating it up until you hear the click it comes

00:04:03.599 --> 00:04:11.120
with a 10 foot braided cable and you can get it today and get a 20 off perk at

00:04:08.720 --> 00:04:14.560
the link below well that's it for this Techquickie guys like the video if you

00:04:12.720 --> 00:04:18.479
liked it dislike it if you disliked it if you want to see more

00:04:16.160 --> 00:04:21.680
stuff check out our other videos and comment below with video suggestions if

00:04:20.160 --> 00:04:28.400
you have ideas for what we the heck we could do next and don't forget to subscribe to techwiki and follow

00:04:25.360 --> 00:04:30.800
techwiki and and me and

00:04:28.400 --> 00:04:34.080
and david and i mean anyone you want really