During November 2024, Siretart enhanced DNS robustness in the containers/gvisor-tap-vsock repository by addressing a crash that occurred when resolv.conf was empty. Siretart introduced a dedicated error, errEmptyResolvConf, and updated the getDNSHostAndPort function in Go to return this error when no DNS hosts were configured. This approach improved error handling and system configuration, ensuring that the application no longer failed at runtime in DNS-absent environments. Siretart also revised the test suite to skip DNS setup when this condition was detected, which reduced false failures in continuous integration and contributed to greater deployment stability and reliability.