From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ww0-f47.google.com (mail-ww0-f47.google.com [74.125.82.47]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id 3CAC8200627; Sat, 16 Jul 2011 20:57:30 -0700 (PDT) Received: by wwf27 with SMTP id 27so2105872wwf.28 for ; Sat, 16 Jul 2011 21:36:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:from:date :x-google-sender-auth:message-id:subject:to:cc:content-type; bh=KYWmDCH+PYdc1ze4H8gBk0U5EAAdZGIE5EEBQ5EwOPs=; b=aadHsvH6q/4etzlI7Hm4LbHwy7MKdpr3VTTVpBCPZWGZaI6sDILpXTp1RTWJlSS3Vi u9PWVCJLf6slpe3yOpfWdimips/hwUiitcP2vlo7AkaNVmkuLviVG/1mf1D68ON2977W JlXmiXonzj5J1PbeW/Puv4eACDsxzmr1LaqLQ= Received: by 10.227.12.20 with SMTP id v20mr4514597wbv.42.1310877367097; Sat, 16 Jul 2011 21:36:07 -0700 (PDT) MIME-Version: 1.0 Sender: davehart@gmail.com Received: by 10.227.41.200 with HTTP; Sat, 16 Jul 2011 21:35:47 -0700 (PDT) In-Reply-To: <4E2226B3.3070907@hp.com> References: <4E2226B3.3070907@hp.com> From: Dave Hart Date: Sun, 17 Jul 2011 04:35:47 +0000 X-Google-Sender-Auth: 7OKeOWmA0FSom_Rjad1TrxlZE94 Message-ID: Subject: Re: smoketest #6 of cerowrt is go for testing To: Rick Jones Content-Type: text/plain; charset=UTF-8 Cc: bismark-bootcamp@projectbismark.net, bloat-devel , bismark-devel@lists.bufferbloat.net X-BeenThere: bloat-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: "Developers working on AQM, device drivers, and networking stacks" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 17 Jul 2011 03:57:30 -0000 On Sun, Jul 17, 2011 at 00:02 UTC, Rick Jones wrote: > If you configure ntpd with bare IP addresses rather than names, will the > getaddrinfo() return without attempting any DNS in the first place? Yes, basically. ntpd might not even call getaddrinfo() in that case (it may use inet_pton() or similar to convert the IP address to binary representation). At any rate, using only numeric IPv4 or IPv6 addresses will avoid any DNS lookups. Cheers, Dave Hart