How do I gather information about unstable cable internet connection?
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Hi, I am on Trisquel 8. I contracted an optical communication with NTT Flet's and the provider is OCN around two months ago. It is unstable, often cut. I want to know why it is that unstable. I just checked journalctl because it is unstable now too. There are several red letters and one of them is written "name server cannot be used: Temporary failure in name resolution (-3)". But it seems the problem is on LAN. Would you teach me how to gather information as much as possible? I would not mind at all to put a lot of time and effort to know what the problem is. Using Tor or Tor traffic usually this problem makes worse but now I do not use any proxies or idk such kind of stuff. Firstly I have to report which name server cannot be used. Until that, all problems will be on LAN and would you teach me what does the (-3) mean? Thank you.
I have a RPi 3 that I use along with smokeping to gatter your stability connection and plot it very nice over days/weeks to check ISP service quality.
I used this tutorial at the time, but should work fine with trisquel based distro.
http://raspberryserver.blogspot.com/2015/11/measuring-internet-connection-stability.html
Hope is what you are looking for, regards.
I merely read the some of sentences of the link page, but,
> I decided to create a long-term stats of the internet stability to have something as a solid proof when complaining to my ISP. And it's also interesting to know how reliable is my ISP compared to the others.
It absolutely seems to be a thing what I wanted. It would take a bit long since I am just a bit experienced beginner and not used to use SBCs but I will give it a try someday and report it here, then complain to the ISP with explicit evidences. It would make me a bit calm. Thank you very much.
This doesn't help monitoring, but you could try using a different DNS instead of the one from your ISP.
For example:
The openNIC servers https://www.opennic.org/
openDNS from Cisco https://www.opendns.com/
or the public DNS from google, if you trust them.
Thank you. But I currently seem not to have such energy and time to learn such far, I have been spending more than 10 years to learn something sacrificing my youth but it still seems to lack something always I do not know well so I am literally exhausted myself by these several years and the ****s so maybe hope in the near future, I would study about DNS too to learn which DNS I can trust but it would take another decade, I guess.
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