From: Didier 'OdyX' Raboud Date: Wed, 17 Sep 2025 08:39:02 +0200 Subject: In CNAME validation, catch the dns.resolver.NoResolverConfiguration exception This allows tests to pass in an environment without network (such as Debian package builds) Origin: vendor Forwarded: https://github.com/desec-io/certbot-dns-desec/pull/33 --- certbot_dns_desec/dns_desec.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/certbot_dns_desec/dns_desec.py b/certbot_dns_desec/dns_desec.py index dbfbae0..7e207be 100644 --- a/certbot_dns_desec/dns_desec.py +++ b/certbot_dns_desec/dns_desec.py @@ -71,7 +71,7 @@ class Authenticator(dns_common.DNSAuthenticator): for _ in range(7): validation_name = dns.resolver.resolve(validation_name, 'CNAME')[0].target logger.debug(f"CNAME lookup result: {validation_name}") - except (dns.resolver.NXDOMAIN, dns.resolver.NoAnswer): + except (dns.resolver.NXDOMAIN, dns.resolver.NoAnswer, dns.resolver.NoResolverConfiguration): pass if isinstance(validation_name, dns.name.Name): validation_name = validation_name.to_text().rstrip('.')