From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-3.1 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 7746 invoked from network); 3 Nov 2020 17:41:30 -0000 Received: from mother.openwall.net (195.42.179.200) by inbox.vuxu.org with ESMTPUTF8; 3 Nov 2020 17:41:30 -0000 Received: (qmail 21726 invoked by uid 550); 3 Nov 2020 17:41:27 -0000 Mailing-List: contact musl-help@lists.openwall.com; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-ID: Reply-To: musl@lists.openwall.com Received: (qmail 21664 invoked from network); 3 Nov 2020 17:41:27 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=trint.com; s=google; h=mime-version:from:date:message-id:subject:to; bh=t0bhBtJBj2XTzOwbBeI+rhDlnPRCNHxk8zPUcIP4jOI=; b=SddakcaHp50iTCYI9j3HELo0d9tvUhpZ829hscPUKe/v/caAUL4Sw89Es/2g/j8Sjk fTpXCNK52lfCC+wPez/sk5mcSCsAOvcSye/ZoLNbyMmS8gedbGubXemBYcEl3dVazoKC wrm71Dj4ND4G7OL++VRa5pDwwr3coAC9O/+oxFsZn7rjFqja11UWY9UhGW78tqsmpKIj Hhd/4ZquJw2aSUlMewtRgKaP3RbQIqErkQ3ENHM00G4qvIp2moUmRYv5cbdN9F0AlaPL NVNjhO3vQoVl4KnZmS7N55yDS4kgqp3VIDgdCsn87pOrjX86tjsTfp2RjAHff8meSSY6 6L+w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=t0bhBtJBj2XTzOwbBeI+rhDlnPRCNHxk8zPUcIP4jOI=; b=EJfadXbXilSNakwCYQGTm8VdST6uWLj6CH0/ZOkPB8l7r/XNl0zBcq93XizKnp2M1V bm7HKTZ8/Dc9VyTz4ILvCWa20uEkiDuZYvHN2FazY/dudPZcMPyLKW1wTsEoiwLeGaTD Ke0B4PvKbU2uDtzCfuX1ABkXKPj3K/F6/J8zWVSpBKXtGOw/iRXi5MkKEVGVKy5+knyN HOwHjV/rCT5sHE6TRrpGoafPCDFhAM+lMUxs54mqUp+wHpnpuagdnKUjB4dMgNR/uJng mprMIuqI1zwNArpkFnS68rzm1Ub27OpoX2LvTpxhg9gUfZztMajOFM0zb0zbAIQXTcAQ erUA== X-Gm-Message-State: AOAM530/XbKDp+YsIwg9h7LaH7cdqTMB4VVe6smdJjI10HNsxvgwgf7k ujyP1ULlj74lh/MskNvF9kpwjjnkuFRobQTFB16wGDcUMwiHVC0F6zvr9vOIJofsHr4QX34siuH c/PYJAjSqyotxHFrSMAzlBSFCqpKxX6qAxdG7tc0Z X-Google-Smtp-Source: ABdhPJytiInDbYv98hvrWFnp8TyZ4AfX6ay0TQ7Ct1iGAoz76OU9FDb7zN/SUk1sC2zFrVp0wSGRmuCTe9Zzy5K8KjY= X-Received: by 2002:a92:874e:: with SMTP id d14mr16179349ilm.86.1604425275089; Tue, 03 Nov 2020 09:41:15 -0800 (PST) MIME-Version: 1.0 From: =?UTF-8?Q?Bart=C5=82omiej_Palmowski?= Date: Tue, 3 Nov 2020 17:41:04 +0000 Message-ID: To: musl@lists.openwall.com Content-Type: text/plain; charset="UTF-8" Subject: [musl] EDNS0 support? Hi, we run alpine based docker images in AWS (inside our VPCs). Which means that we're using dns servers provided by the AWS[1]. The problem arises when we want to resolve a dns record that yields a large response, for example: $ nslookup eu.data.logs.insight.rapid7.com Server: 10.11.12.13 Address: 10.11.12.13:53 Non-authoritative answer: *** Can't find eu.data.logs.insight.rapid7.com: No answer Non-authoritative answer: *** Can't find eu.data.logs.insight.rapid7.com: No answer According to what I managed to find out the reasons are as follows: * edns0 is not advertise by the resolver * there is no retry with TCP Please advise on how we could reconfigure our images so that we're able to resolve records with lots of RRs with a musl resolver. 1 - https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/DNSBehavior.html -- *The information contained in this message is intended for the addressee only and may contain classified information. If you are not the addressee, please delete this message and notify the sender; you should not copy or distribute this message or disclose its contents to anyone. Any views or opinions expressed in this message are those of the individual(s) and not necessarily of the organization. No reliance may be placed on this message without written confirmation from an authorised representative of its contents. No guarantee is implied that this message or any attachment is virus free or has not been intercepted and amended.*