I'm using UM in our office. there is a problem with snaps here. Snap can not connect to snap store. Here the error:
error: unable to contact snap store
As far as I know, our network does not use any proxy but obviously there is something in our network configuration that prevent snap from accessing snap store. As result I can't update default snap packages in UM and I think this will cause further problems with upgrading my system to 21.10.
Here is the results of
curl -D- -v https://api.snapcraft.io command
* Trying 22.214.171.124:443... * Connected to api.snapcraft.io (126.96.36.199) port 443 (#0) * ALPN, offering h2 * ALPN, offering http/1.1 * successfully set certificate verify locations: * CAfile: /etc/ssl/certs/ca-certificates.crt * CApath: /etc/ssl/certs * TLSv1.3 (OUT), TLS handshake, Client hello (1): * TLSv1.3 (IN), TLS handshake, Server hello (2): * TLSv1.2 (IN), TLS handshake, Certificate (11): * TLSv1.2 (IN), TLS handshake, Server key exchange (12): * TLSv1.2 (IN), TLS handshake, Server finished (14): * TLSv1.2 (OUT), TLS handshake, Client key exchange (16): * TLSv1.2 (OUT), TLS change cipher, Change cipher spec (1): * TLSv1.2 (OUT), TLS handshake, Finished (20): * TLSv1.2 (IN), TLS handshake, Finished (20): * SSL connection using TLSv1.2 / ECDHE-RSA-AES128-GCM-SHA256 * ALPN, server did not agree to a protocol * Server certificate: * subject: CN=api.snapcraft.io * start date: May 3 13:51:43 2021 GMT * expire date: Aug 1 13:51:43 2021 GMT * subjectAltName: host "api.snapcraft.io" matched cert's "api.snapcraft.io" * issuer: C=US; O=Let's Encrypt; CN=R3 * SSL certificate verify ok. > GET / HTTP/1.1 > Host: api.snapcraft.io > User-Agent: curl/7.74.0 > Accept: */* > * Mark bundle as not supporting multiuse < HTTP/1.1 200 OK HTTP/1.1 200 OK < Server: gunicorn/19.7.1 Server: gunicorn/19.7.1 < Date: Wed, 23 Jun 2021 07:45:09 GMT Date: Wed, 23 Jun 2021 07:45:09 GMT < Content-Type: text/html; charset=utf-8 Content-Type: text/html; charset=utf-8 < Content-Length: 64 Content-Length: 64 < Snap-Store-Version: 39 Snap-Store-Version: 39 < X-View-Name: snapdevicegw.webapi.root X-View-Name: snapdevicegw.webapi.root < X-VCS-Revision: dd4c5232 X-VCS-Revision: dd4c5232 < X-Request-Id: 2D549D02AB680A325D7301BB60D2E6802BA92DE X-Request-Id: 2D549D02AB680A325D7301BB60D2E6802BA92DE < snapcraft.io store API service - Copyright 2018-2019 Canonical. * Connection #0 to host api.snapcraft.io left intact
thank you in advance and sorry for my english.