1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
Received: from sog-mx-2.v43.ch3.sourceforge.com ([172.29.43.192]
helo=mx.sourceforge.net)
by sfs-ml-3.v29.ch3.sourceforge.com with esmtp (Exim 4.76)
(envelope-from <robert@mckay.com>) id 1WmYAY-0006xC-U2
for bitcoin-development@lists.sourceforge.net;
Tue, 20 May 2014 00:44:38 +0000
Received-SPF: pass (sog-mx-2.v43.ch3.sourceforge.com: domain of mckay.com
designates 37.1.88.131 as permitted sender)
client-ip=37.1.88.131; envelope-from=robert@mckay.com;
helo=mail.mckay.com;
Received: from mail.mckay.com ([37.1.88.131])
by sog-mx-2.v43.ch3.sourceforge.com with esmtps (TLSv1:AES256-SHA:256)
(Exim 4.76) id 1WmYAX-0001rY-MH
for bitcoin-development@lists.sourceforge.net;
Tue, 20 May 2014 00:44:38 +0000
Received: from www-data by mail.mckay.com with local (Exim 4.76)
(envelope-from <robert@mckay.com>)
id 1WmYAP-0004nb-PP; Tue, 20 May 2014 01:44:29 +0100
To: Jeff Garzik <jgarzik@bitpay.com>
X-PHP-Originating-Script: 0:func.inc
MIME-Version: 1.0
Content-Type: text/plain;
charset=UTF-8;
format=flowed
Content-Transfer-Encoding: 7bit
Date: Tue, 20 May 2014 01:44:29 +0100
From: Robert McKay <robert@mckay.com>
In-Reply-To: <CAJHLa0O_F3MJc1KJJn+L6AjT-wa8sPunibb4rfWGGUWYSOkVOg@mail.gmail.com>
References: <ll29m5$r6c$1@ger.gmane.org> <ll5ems$6pt$1@ger.gmane.org>
<09E70F88-DA1C-4E3F-9342-547FB8794EAB@heliacal.net>
<CALDj+BZrn6TBjdVjGkc293SLAAcqzni+-7daFpZAq5gSaL1cKw@mail.gmail.com>
<CAJHLa0OaAKTLR2hL6kReBFcD6FoXYV9AoqMbn0WwqYgtTNtQKw@mail.gmail.com>
<CALDj+BY2jEL6-NwGdrh3wdcmjW_7tEDDxmyiP6woOxCg8bMQKw@mail.gmail.com>
<ll7hps$8gs$1@ger.gmane.org>
<CALDj+BYqMDxv+YYcrEzaZH+qFqUsme3UYuYh5Es7C6FbMZCtpg@mail.gmail.com>
<ll7l9t$m82$1@ger.gmane.org>
<CALDj+BamyawuTgDhzM0AyB5LWNPb_xY_BQeDHqs9t9WLPibiCQ@mail.gmail.com>
<779f3ed92d29cfd6922a92c5d60d3f9d@webmail.mckay.com>
<CAJHLa0O_F3MJc1KJJn+L6AjT-wa8sPunibb4rfWGGUWYSOkVOg@mail.gmail.com>
Message-ID: <0f40d061612966ff809fff04d3f698eb@webmail.mckay.com>
X-Sender: robert@mckay.com
User-Agent: Roundcube Webmail/0.5.3
X-Spam-Score: -2.3 (--)
X-Spam-Report: Spam Filtering performed by mx.sourceforge.net.
See http://spamassassin.org/tag/ for more details.
-1.5 SPF_CHECK_PASS SPF reports sender host as permitted sender for
sender-domain
-0.0 SPF_PASS SPF: sender matches SPF record
-0.7 RP_MATCHES_RCVD Envelope sender domain matches handover relay
domain
-0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from
author's domain
0.1 DKIM_SIGNED Message has a DKIM or DK signature,
not necessarily valid
-0.1 DKIM_VALID Message has at least one valid DKIM or DK signature
X-Headers-End: 1WmYAX-0001rY-MH
Cc: Bitcoin Dev <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] DNS seeds unstable
X-BeenThere: bitcoin-development@lists.sourceforge.net
X-Mailman-Version: 2.1.9
Precedence: list
List-Id: <bitcoin-development.lists.sourceforge.net>
List-Unsubscribe: <https://lists.sourceforge.net/lists/listinfo/bitcoin-development>,
<mailto:bitcoin-development-request@lists.sourceforge.net?subject=unsubscribe>
List-Archive: <http://sourceforge.net/mailarchive/forum.php?forum_name=bitcoin-development>
List-Post: <mailto:bitcoin-development@lists.sourceforge.net>
List-Help: <mailto:bitcoin-development-request@lists.sourceforge.net?subject=help>
List-Subscribe: <https://lists.sourceforge.net/lists/listinfo/bitcoin-development>,
<mailto:bitcoin-development-request@lists.sourceforge.net?subject=subscribe>
X-List-Received-Date: Tue, 20 May 2014 00:44:39 -0000
On Mon, 19 May 2014 19:49:52 -0400, Jeff Garzik wrote:
> On Mon, May 19, 2014 at 4:36 PM, Robert McKay <robert@mckay.com>
> wrote:
>> It should be possible to configure bind as a DNS forwarder.. this
>> can
>> be done in a zone context.. then you can forward the different zones
>> to
>> different dnsseed daemons running on different non-public IPs or two
>> different ports on the same IP (or on one single non-public IP since
>> there's really no reason to expose the dnsseed directly daemon at
>> all).
>
> Quite the opposite. dnsseed data rotates through a lot of addresses
> if available. Using the bind/zone-xfer system would result in fewer
> total addresses going through to the clients, thanks to the addition
> of caching levels that the bind/zone-xfer system brings.
>
> That said, if the choice is between no-service and bind, bind it is
> ;p
Setting it up as a zone forwarder causes each request to go through to
the dnsseed backend for each request.
Rob
|