systemd-resolved stub resolver and direct resolv.conf access
Fedora utilizes systemd-resolved as the primary DNS manager, operating a stub resolver at 127.0.0.53 . While this manages per-link DNS routing and local caching, a behavioral discrepancy occurs when applications bypass the D-Bus interface to read /etc/resolv.conf directly. The standard configuration relies on /etc/resolv.conf being a symlink to /run/systemd/