-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Thursday, 2014-07-10 at 20:07 +0300, auxsvr@gmail.com wrote:
On Thursday 10 of July 2014 18:27:19 Carlos E. R. wrote:
When I have dowloads running, using my full internet pipe, which is just 1 mbit/s ADSL via dedicated router, DNS queries fail, meaning that anything internet related fails, in the entire house. It does not matter what machine is doing the download.
Aparently, the router is not capable of prioritizing and doing two things at the same time, like doing a download, and querying upstream DNSs.
You're lucky. My router simply ignores DNS requests even though it is configured as a DNS server by the ISP...
These things are cheap, and they cut corners somewhere. My previous one failed completely with some wireless devices, but did not have this particular problem.
What would be the best strategy to at least paliate this? Maybe I should tell my machine to query some other DNS server outside, instead, in case it is just the router which can not do two things, but it may allow packages to go in or out... :-?
There was a script some years ago that configured the IP stack for traffic shaping, named wondershaper or something like that, that would reduce the throughput when sending and set traffic priority accordingly, so that the router does not choke and delay low-latency traffic, such as the DNS requests.
Ah, but what is maxed is my download pipe, not the upload. I should be able to send the DNS request, but I do not get the answer, aparently. But I'm unsure about this, because I have tried with several simultaneous downloads and they keep working, without missing a packet, apparently... So it could just be that the router itself is too busy to give cpu cycles to its DNS daemon. I will try to bypass it.
Of course, you could also configure the programs that upload data not to saturate the bandwidth, if possible at all.
But it is the download rate which saturates. And many programs, like yast or firefox, do not have that feature: I have to use them via trickle. And if the downloads come from different machines, forget it. - -- Cheers, Carlos E. R. (from 13.1 x86_64 "Bottle" at Telcontar) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iEYEARECAAYFAlO+4GQACgkQtTMYHG2NR9UbwgCeLW7F5CSKqOR0PXGJ0+L8bl15 CcYAn3hr8Lr7/2jfUEmOJogaG1zGXCxk =Ll7J -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org