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No DNS cache

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Re: No DNS cache
« Reply #31 on: May 01, 2016, 11:48:36 PM »
 

LL-user

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Hi LL-user,

Isn't that for setting up a DNS server? And if it were the problem here, wouldn't placing the remote DNS server directly in Network Connections not make a difference?

As I understand it dnsmasq is a local DNS cache/ caching DNS proxy. Beside that it could also provide a DHCP/TDTP server and a local DNS server in addition to an existing global DNS server.

BUT: We have only dnsmasq-base installed. Dnsmasq would interfere with Network Manager (also mentioned in the link I posted.) That means, we have no daemon (service) running.

If you have a look at /etc/NetworkManager/NetworkManager.conf you'll see dnsmasq configured for DNS. You can also find the dnsmasq running on your system.

It's quite some time I tested different setups/configurations. Sorry, can't remember on top of my head and don't have my notes available at the moment.



 

Re: No DNS cache
« Reply #30 on: May 01, 2016, 10:46:31 PM »
 

paul1149

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Ok. too late. I just filed it.
 

Re: No DNS cache
« Reply #29 on: May 01, 2016, 10:45:12 PM »
 

Jerry

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There's no need to report this in our 'Bugs' section. The answer lies at the user end or with the actual software ( Ubuntu maintainer)
 

Re: No DNS cache
« Reply #28 on: May 01, 2016, 10:07:46 PM »
 

torreydale

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You can report a bug by going to the main Linux Lite website (www.linuxliteos.com).  Under the Support section, there is a link for Bugs.
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Re: No DNS cache
« Reply #27 on: May 01, 2016, 10:03:38 PM »
 

paul1149

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Hi LL-user,

Isn't that for setting up a DNS server? And if it were the problem here, wouldn't placing the remote DNS server directly in Network Connections not make a difference?
 

Re: No DNS cache
« Reply #26 on: May 01, 2016, 09:54:45 PM »
 

LL-user

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Hi paul1149,

If I'm not mistaken, I can't see in the whole thread mentioned - and therefore maybe not considered/looked at? - the DNS cache that is actually used in Ubuntu and as far as I know also in LL: dnsmasq

Have you checked this?

Hope that helps solve the riddles :)
« Last Edit: May 01, 2016, 09:57:16 PM by LL-user »
 

Re: No DNS cache
« Reply #25 on: May 01, 2016, 07:56:31 PM »
 

paul1149

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I finally got a chance to double-check a windows box on this LAN, and it has no problem using the router-configured DNS servers. So I think we have a bug here. But I don't see where to file it.

Basically, I expected leaving the DNS server blank in Network Connections would cause LL to look to the default gateway for DNS specs. But doing so yields no ability to find DNS at all. The DNS server must be specced in LL's Network Connections.

And speccing the default gateway, the router, as the DNS server in Network Connections works, but only with a lot of "resolving host" delays. As soon as I enter the ultimate DNS server in Network Connections, lookups are instant.

I'm on LL 2.8 x64, using an ethernet connection.
 

Re: No DNS cache
« Reply #24 on: April 24, 2016, 01:23:37 PM »
 

torreydale

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Mine still says 127.0.0.1.  My mistake on that.  In reflection on my reply #3, that was the reason I had to manually enter in an Additional DNS Server.  My change to that file wouldn't stay persistent.  So I added 8.8.8.8 as suggested by the folks at OpenVPN Access Server support.
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Re: No DNS cache
« Reply #23 on: April 24, 2016, 10:30:08 AM »
 

paul1149

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Thanks. Resolve.conf still shows the 127.... ip, so the network connections / ipv4 DNS setting evidently does not affect that. Before I would file a bug I think I would need to double check the performance of the windows boxes, and also try a different router. I will do that if I can, but I'm not sure when that would be.

(congrats on your promotion, BTW!)
BW
 

Re: No DNS cache
« Reply #22 on: April 24, 2016, 09:04:56 AM »
 

torreydale

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It shouldn't be this way.  As a workaround, I mentioned manually entering the OpenDNS servers in an earlier post (reply #3).  The resolv.conf file might show those OpenDNS server addresses now instead of 127.0.0.1.

Perhaps you can summarize your experience and report this as a Linux Lite bug.
« Last Edit: April 24, 2016, 09:13:05 AM by torreydale »
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Re: No DNS cache
« Reply #21 on: April 23, 2016, 11:39:10 PM »
 

paul1149

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Though it has been better than it was, the regression lasted all day, and I was getting delays on maybe half the sites.

On a hunch, I entered the OpenDNS address directly in the network properties applet, rather than referring the network to the router's DNS spec, then cycled the network off and on. The result was instant, and in every case my lookups were lightning fast.

So I'm not sure what's at play here. Either the router is defective and the anomalies between linux and windows box performance were just coincidence, or windows is doing a better job of talking to the router.
 

Re: No DNS cache
« Reply #20 on: April 22, 2016, 10:46:23 PM »
 

paul1149

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I've been getting a little bit of regression on this (though it's still a lot better than it was, and some of it might be evening cable lag), so I decided to give that a try. Under the network connection I set IP6 to "Ignore", which grayed out the rest of the settings, so I guess that equals "off". I didn't see any change in dns speed, though, even after rebooting.
 

Re: No DNS cache
« Reply #19 on: April 22, 2016, 09:46:54 PM »
 

firenice03

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Fire: I found the 'mdns4" spec missing from that line and added it. Otherwise the desired order was already there. I think I'd like to leave IP6 in place, as soon it probably will be necessary.

Thanks guys.

If running better you're probably good... If you're feeling squirrelly you could disable (1) then enable (0) - for testing..

This is what gave me the idea..



yeah its Windows, but same idea  ;D ;D ;D ;D
« Last Edit: April 22, 2016, 09:49:07 PM by firenice03 »
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Re: No DNS cache
« Reply #18 on: April 22, 2016, 06:29:04 PM »
 

Wirezfree

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O.K, not sure then why it won't show results... mmm
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Re: No DNS cache
« Reply #17 on: April 22, 2016, 06:18:34 PM »
 

paul1149

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That's a pretty weird qualification, it seems. I have a couple of chromium derivatives, one set as the system default.
 

 

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