cancel
Showing results for 
Search instead for 
Did you mean: 

DNS is sluggish - again...

VileReynard
Seasoned Pro
Posts: 10,750
Thanks: 230
Fixes: 9
Registered: 01-09-2007

DNS is sluggish - again...

12 REPLIES
Plusnet Alumni (retired) chrispurvey
Plusnet Alumni (retired)
Posts: 5,369
Fixes: 1
Registered: 13-07-2012

Re: DNS is sluggish - again...

Seems there may have been a slight increase in latency last night, I'll flag this up to see what the cause was/is.
Internet
Dabbler
Posts: 11
Registered: 23-09-2013

Re: DNS is sluggish - again...

If you want performance use a dns server that is aimed for performance:
https://www.grc.com/dns/benchmark.htm
This tests thousands of dns servers for speed and reliability. And gives you your own personalised results.
SuperZoom
Grafter
Posts: 353
Registered: 17-05-2013

Re: DNS is sluggish - again...

Hmm...  Don't let the pretty colours send you blind.
VileReynard
Seasoned Pro
Posts: 10,750
Thanks: 230
Fixes: 9
Registered: 01-09-2007

Re: DNS is sluggish - again...

Quote from: Internet
If you want performance use a dns server that is aimed for performance:
https://www.grc.com/dns/benchmark.htm
This tests thousands of dns servers for speed and reliability. And gives you your own personalised results.

Unfortunately that's some Windows thing and hence useless.

Plusnet Alumni (retired) chrispurvey
Plusnet Alumni (retired)
Posts: 5,369
Fixes: 1
Registered: 13-07-2012

Re: DNS is sluggish - again...

I'm still chasing this up, when I've got an update I'll pop back on here.
Community Veteran
Posts: 5,472
Thanks: 292
Fixes: 4
Registered: 11-08-2007

Re: DNS is sluggish - again...

@foxy - I've used GRC DNS benchmark many times on Linux using 'WinE'.
Just download, set to executable, and run (with WinE) - no problem.
darklight
Grafter
Posts: 142
Registered: 10-03-2013

Re: DNS is sluggish - again...

Getting massive lag tonight  Sad  pings up to about 30ms to 50ms, time for a router session drop maybe?
VileReynard
Seasoned Pro
Posts: 10,750
Thanks: 230
Fixes: 9
Registered: 01-09-2007

Re: DNS is sluggish - again...

Quote from: purleigh
@foxy - I've used GRC DNS benchmark many times on Linux using 'WinE'.
Just download, set to executable, and run (with WinE) - no problem.

I don't have WinE loaded as it's a rather huge - even before I try to run a typical mammoth Windows program.
If I absolutely need to run Windows, I can use a dual boot netbook with a minimal Windows partition on it.
I use Dropbox to sync files between the Desktop and Windows.
Obviously, Dropbox is treated as a totally insecure transport method!

Plusnet Alumni (retired) chrispurvey
Plusnet Alumni (retired)
Posts: 5,369
Fixes: 1
Registered: 13-07-2012

Re: DNS is sluggish - again...

Looking at the samknows data we can see an increase in latency and failed DNS lookups in the evening on DNS;

It does appear to be on telehouse gateways, so PTW, PTE, PTN & PTW unfortunately we can't split the samknows data this way, so the data averages out the whole network.
We've raised a problem(Ref:77297) and our networks team will look into this.
SuperZoom
Grafter
Posts: 353
Registered: 17-05-2013

Re: DNS is sluggish - again...

Have you tried turning the DNS servers off and on again, and upgrading to the latest version of the software?    Wink    Smiley
Plusnet Alumni (retired) chrispurvey
Plusnet Alumni (retired)
Posts: 5,369
Fixes: 1
Registered: 13-07-2012

Re: DNS is sluggish - again...

We've actually rolled some updates yesterday on the servers and are currently monitoring.
Community Veteran
Posts: 2,274
Thanks: 109
Fixes: 4
Registered: 18-02-2013

Re: DNS is sluggish - again...

I've noticed the load balancing seems to be working better, also your updates seem to be holding water now, so far so good, happy days.... Well done plusnet