https://blogs.damiendye.uk/en/tags/fedora/ Recent content in Fedora on Damien Dye's Blog Hugo en-GB Sun, 27 Sep 2026 09:00:00 +0100 https://blogs.damiendye.uk/en/dns/resolved-the-resolver-you-are-already-running/ Sun, 27 Sep 2026 09:00:00 +0100 https://blogs.damiendye.uk/en/dns/resolved-the-resolver-you-are-already-running/ systemd-resolved is on most Linux desktops, caching every lookup and validating none of them. What the stub on 127.0.0.53 does, measured cache figures, turning DNSSEC on, why DNS over TLS works but DNS over HTTPS does not exist, what Fedora, Ubuntu, Debian and RHEL each ship, and why you almost certainly do not need a custom build. https://blogs.damiendye.uk/en/certificates/webex-certificates-on-a-build-server/ Tue, 15 Sep 2026 09:30:00 +0100 https://blogs.damiendye.uk/en/certificates/webex-certificates-on-a-build-server/ Webex on Linux says "Offline - No internet connection" on a machine whose network is fine: the OpenSSL Cisco ship looks for its trust store inside their own build container. What breaks, the fixes that fail, the one that works, what the build process got wrong, and how a security appliance vendor ships a client that cannot check a certificate.