[prev in list] [next in list] [prev in thread] [next in thread] 

List:       opensuse
Subject:    Re: [opensuse] Re: When I have downloads running, DNS fails.
From:       "Carlos E. R." <robin.listas () telefonica ! net>
Date:       2014-07-15 10:10:47
Message-ID: 53C4FE27.2030609 () telefonica ! net
[Download RAW message or body]

On 2014-07-15 07:47, Per Jessen wrote:
> Carlos E. R. wrote:
> 
>> It takes about five seconds... I tried 2 or three times, and every
>> time it tries a different route, but starting at the root servers.
>> This command does not appear to cache the answer. "host -v ..." does.
> 
> Yes, you're right - "dig" talks directly to the nameserver,
> whereas "host" uses the resolver which in turn uses nscd. 

Ah.
Ok.

But the nameserver is mine, in this machine. Should it not cache?
Unless when you say "+trace" it does not cache.


>>> Just out of curiosity, have you tried assigning a QoS class to port
>>> 53 (on the originating machine) ?  It is easily done with iptables.
>>
>> No, I haven't. I would have to study how to do it.
> 
> iptables -A PREROUTING -t mangle -p udp --dport domain -j TOS --set-tos
> Minimize-Delay
> iptables -A PREROUTING -t mangle -p tcp --dport domain -j TOS --set-tos
> Minimize-Delay
> 
>> But it would only benefit one machine, not the rest in the house. 
> 
> Yes, but if it works, your router would appear to have some idea of how
> to prioritize traffic correctly. 

Ah, I see.

Ok, one thing more to my to-do list. I have some "real world" chores
waiting...

Thanks :-)

-- 
Cheers / Saludos,

		Carlos E. R.
		(from 13.1 x86_64 "Bottle" at Telcontar)


["signature.asc" (application/pgp-signature)]
-- 
To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org
To contact the owner, e-mail: opensuse+owner@opensuse.org


[prev in list] [next in list] [prev in thread] [next in thread]