[squid-users] [ext] ERR_TUNNEL_CONNECTION_FAILED

Mon Oct 5 15:46:52 UTC 2020

> 1601906504.874      0 141.42.231.251 NONE_NONE/500 0 CONNECT securefiles.laborberlin.com:443 - HIER_NONE/- - accessRule=- -
> 1601906505.047      0 141.42.231.251 NONE_NONE/500 0 CONNECT securefiles.laborberlin.com:443 - HIER_NONE/- - accessRule=- -
> 1601906505.225      0 141.42.231.251 NONE_NONE/500 0 CONNECT securefiles.laborberlin.com:443 - HIER_NONE/- - accessRule=- -

cache.log is more verbose with a similar domain (iris.charite.de):
2020/10/05 17:45:37| DNS error while resolving iris.charite.de: No valid address records

# dig +short @141.42.5.157 iris.charite.de
charite.science-it.ch.

# dig +short @141.42.5.157 charite.science-it.ch
iris.science-it.ch.
35.180.69.77

Huh? No valid address records?

Ralf Hildebrandt
Charité - Universitätsmedizin Berlin
Geschäftsbereich IT | Abteilung Netzwerk

Campus Benjamin Franklin (CBF)
Haus I | 1. OG | Raum 105
Hindenburgdamm 30 | D-12203 Berlin

Tel. +49 30 450 570 155
ralf.hildebrandt at charite.de
https://www.charite.de