From: robin_listas@es.invalid   
      
   On 25/07/2021 12.02, Andrew wrote:   
   > Carlos E. R. wrote:   
   >> On 24/07/2021 22.42, Andrew wrote:   
   >>> Carlos E. R. wrote:   
   >>>> On 24/07/2021 12.44, Andrew wrote:   
   >>>>> One of my computers is refusing to update, zypper says it cannot   
   >>>>> resolve   
   >>>>> download.opensuse.org.  The problem was first seen around 14 hours ago   
   >>>>> and an update had succeeded 48 hours before that.   
   >>>>> It is the only system I have which uses Network Manager, it is also   
   >>>>> ipv4   
   >>>>> only (hardware reasons) although in that respect it is not the only   
   >>>>> one.   
   >>>>>    Other xxx.opensuse.org sites *are* accessible to it.   
   >>>>>   
   >>>>> I will have more time to attack this problem tomorrow, this query is   
   >>>>> just on the off-chance that someone else has seen this.   
   >>>>> My suspicion was name-resolution on the router - I set up DNS over TLS   
   >>>>> (DoT) recently with the primary server being dns.quad9.net - but   
   >>>>> things   
   >>>>> still worked for 48 hours after I made that change.   
   >>>>>   
   >>>>> OpenSUSE 15.3 Leap, fully patched.   
   >>>>   
   >>>> Sometimes it is not download.opensuse.org which doesn't resolve, but   
   >>>> the   
   >>>> mirror that you get redirected to. It is not easy to find out.   
   >>>>   
   >>>> Another typical problem would be trying to use https instead of http.   
   >>>>   
   >>>>   
   >>>> You will have to diagnose. Start with:   
   >>>>   
   >>>> host -v download.opensuse.org   
   >>>>   
   >>>> in the problem computer.   
   >>>>   
   >>>   
   >>> Host download.opensuse.org not found: 2(SERVFAIL)   
   >>> Received 39 bytes from (an-ipv6-address)#53 in 0 ms   
   >>   
   >> I said "host -v ..." - you removed the -v.   
   >>   
   >>   
   >   
   > No, I just checked (bash history, of course) and the "-v" was definitely   
   > in there.   
   > There has been a change for the worse though, I'm now getting   
   >   
   > ;; connection timed out; no servers could be reached   
      
   Well, the next step is   
      
   host -v download.opensuse.org 192.168.1.1   
      
   assuming that is your router. If it fails, use other IPs. If it works,   
   your resolv file has a problem.   
      
      
   >   
   > This is both with and without "sudo", my tests last night were without.   
   >   
   > Meanwhile Firefox is finding whatever it wants with no problems at all.   
   > This gave me another idea, I appended #80 to the host name and it is   
   > finding the host.  Back to the router configuration.   
      
   Firefox by default uses its own solving engine and servers.   
      
   --   
   Cheers,   
          Carlos E.R.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)