From: robin_listas@es.invalid   
      
   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.   
      
   >   
   > This particular system is hooked up seamlessly via a cable to a WLAN   
   > device which then goes to the router, all this being invisible to the   
   > PC.  That WLAN forwarder only knows ipv4.   
   > It looks as though the problem could be the router returning an ipv6   
   > address, even though the PC "knows" that it should only be using ipv4.   
   > Other addresses work.   
   >   
   > It's late here.  Tomorrow.   
   >   
   > Thanks though   
      
      
   --   
   Cheers,   
          Carlos E.R.   
      
   --- SoupGate-Win32 v1.05   
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