deep1234 Posted August 19, 2010 Share Posted August 19, 2010 Hi guys, I am wondering can the DNS limit the bandwidth to a website? lets says for youtube for example? Link to comment https://www.neowin.net/forum/topic/931002-can-dns-limit-the-bandwidth-to-a-website/ Share on other sites More sharing options...
CPressland Posted August 19, 2010 Share Posted August 19, 2010 A very wide question. I mean, if you have DNS Records for Ads for example pointing to a nonexistent area or localpc then yes you'd save a TINY amount of bandwidth. Otherwise, DNS is just what points google.com to 173.194.36.104. Link to comment https://www.neowin.net/forum/topic/931002-can-dns-limit-the-bandwidth-to-a-website/#findComment-593049170 Share on other sites More sharing options...
Prt Scr Posted August 19, 2010 Share Posted August 19, 2010 No Something like Squid (proxy server) can, for example Link to comment https://www.neowin.net/forum/topic/931002-can-dns-limit-the-bandwidth-to-a-website/#findComment-593049176 Share on other sites More sharing options...
Mr. Gibs Posted August 19, 2010 Share Posted August 19, 2010 No. In basic terms all a DNS is doing is pointing you to the correct IP address. If you have a router you can use QOS, or on Windows / Mac / Linux I'm sure tons of programs exist that will help you limit your bandwidth. Link to comment https://www.neowin.net/forum/topic/931002-can-dns-limit-the-bandwidth-to-a-website/#findComment-593049188 Share on other sites More sharing options...
Colin-uk Veteran Posted August 19, 2010 Veteran Share Posted August 19, 2010 nope, its not a feature of DNS, afaik. Link to comment https://www.neowin.net/forum/topic/931002-can-dns-limit-the-bandwidth-to-a-website/#findComment-593049238 Share on other sites More sharing options...
Argi Posted August 19, 2010 Share Posted August 19, 2010 You can't limit but you can use it for load balancing. Link to comment https://www.neowin.net/forum/topic/931002-can-dns-limit-the-bandwidth-to-a-website/#findComment-593049244 Share on other sites More sharing options...
deep1234 Posted August 19, 2010 Author Share Posted August 19, 2010 I am asking as I was having some issues viewing videos from youtube, I googled and some recommended changing the DNS. so, I switched from my ISP DNS to OpenDNS for testing only, and I can see a improvements in viewing the flash videos in youtube. Thats why I was wondering. Thanks guys for the quick answer. Link to comment https://www.neowin.net/forum/topic/931002-can-dns-limit-the-bandwidth-to-a-website/#findComment-593049254 Share on other sites More sharing options...
Prt Scr Posted August 19, 2010 Share Posted August 19, 2010 On 19/08/2010 at 10:38, deep1234 said: Hi guys, I am wondering can the DNS limit the bandwidth to a website? lets says for youtube for example? I think we could all come up with better advice if you stated whether you are trying to achieve limiting bandwidth or trying to overcome it... answered above as my post was being posted Please ignore.. Link to comment https://www.neowin.net/forum/topic/931002-can-dns-limit-the-bandwidth-to-a-website/#findComment-593049256 Share on other sites More sharing options...
hdood Posted August 19, 2010 Share Posted August 19, 2010 On 19/08/2010 at 10:59, deep1234 said: I am asking as I was having some issues viewing videos from youtube, I googled and some recommended changing the DNS. so, I switched from my ISP DNS to OpenDNS for testing only, and I can see a improvements in viewing the flash videos in youtube. Thats why I was wondering. Thanks guys for the quick answer. Well it depends on what you mean by issues. A DNS server has one single purpose, and that is to translate a hostname (like google.com) to an IP address. That is all it does. Your browser connects to the DNS server, sends "google.com," gets back "123.123.123.123," then disconnects. That's all the interaction it does with the DNS server. The browser then goes on to connect to 123.123.123.123, which is the actual Google server. These are two separate and unrelated sessions. Since the browser requires the IP address, this step is necessary. If the DNS server was slow, then this initial step would take longer, but it would not affect the connection to the IP address (which comes after your browser has disconnected from the DNS server.) Now, there is a theoretical way the DNS server can affect performance. It could have cached information that is out of date, so that the IP address your browser gets back from it points to an old broken server. This is pretty rare. Another thing is that a hostname can have multiple IP addresses. When your browser connects to google.com, it might get 10 IP addresses back. It then generally tries the IP address that is at the top of the list first. This can be taken advantage of to spread the load over multiple servers by rotating the list. Every time you ask for the IP addresses, the order of the list different. The result is even though the hostname is the same, you're actually connecting to a different server each time. This is known as round-robin DNS. That's the only ways the DNS server can (indirectly) affect things. The DNS server can't affect the speed the video downloads or streams at, only which servers you end up connecting to and how long it takes to connect to them. Of course if the video was divided into chunks that were downloaded separately, maybe even from different servers, then I suppose it could affect things even after the initial connection, but I don't know if Google does anything like that. Other unrelated things that can affect Youtube are things like which server you are being served by (some are under more load than others) and which physical route the signal takes you to (the available bandwidth can vary). Link to comment https://www.neowin.net/forum/topic/931002-can-dns-limit-the-bandwidth-to-a-website/#findComment-593049320 Share on other sites More sharing options...
+John Teacake MVC Posted August 19, 2010 MVC Share Posted August 19, 2010 No its not even remotely close to the features of DNS. Link to comment https://www.neowin.net/forum/topic/931002-can-dns-limit-the-bandwidth-to-a-website/#findComment-593049348 Share on other sites More sharing options...
Bryan R. Posted August 19, 2010 Share Posted August 19, 2010 It's one of those things that genuine amateurs say makes a difference in bandwidth/streaming. Link to comment https://www.neowin.net/forum/topic/931002-can-dns-limit-the-bandwidth-to-a-website/#findComment-593049442 Share on other sites More sharing options...
sc302 Veteran Posted August 19, 2010 Veteran Share Posted August 19, 2010 well if your dns server is slow to respond, then yes initially getting to a website would be slow and possibly initial load (getting to) a video would be slow. Trying a different dns server would get around the slow to respond issue, but it can not limit your speed, just your initial connection to whatever. Link to comment https://www.neowin.net/forum/topic/931002-can-dns-limit-the-bandwidth-to-a-website/#findComment-593049722 Share on other sites More sharing options...
offroadaaron Posted August 19, 2010 Share Posted August 19, 2010 No and if you think so then you do not know how DNS works. Link to comment https://www.neowin.net/forum/topic/931002-can-dns-limit-the-bandwidth-to-a-website/#findComment-593049980 Share on other sites More sharing options...
sc302 Veteran Posted August 19, 2010 Veteran Share Posted August 19, 2010 aaron post #7 was his real question. post #1 was an attempt at his issue. Link to comment https://www.neowin.net/forum/topic/931002-can-dns-limit-the-bandwidth-to-a-website/#findComment-593050030 Share on other sites More sharing options...
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