BIND9、nsupdate 和该死的 DDNS

Question

我浏览了很多关于 DDNS 的 HOWTO 页面，试图解决这个问题……我不知所措。

工作站 X = CentOS 6.2 x64 ServerX = Ubuntu 12.04 LTS x64

我不明白为什么它不起作用......我真的没有想法。我已经多次重新生成和重新配置所有内容。

我已经确定：

• 在两台主机上运行 NTPD，我已验证 NTP 工作正常
• TZ 对两个节点都是正确的（硬件是 UTC）
• 我遵循了这些指南：
  • http://linux.yyz.us/nsupdate/
  • http://agiletesting.blogspot.com.au/2012/03/dynamic-dns-updates-with-nsupdate-and.html
  • http://www.cheshirekow.com/wordpress/?p=457
  • https://www.erianna.com/nsupdate-dynamic-dns-updates-with-bind9
  • http://consultancy.edvoncken.net/index.php/HOWTO_Manage_Dynamic_DNS_with_nsupdate
  • http://blog.philippklaus.de/2013/01/updating-dns-entries-with-nsupdate-or-alternative-implementations-your-own-ddns/

其中一些具有不同的生成密钥的方式，但其余的都是相同的......而且，当我尝试 nsupdate 时 - 即使在运行 dnssec-keygen 的服务器上（以及 bind 所在的位置），我也得到了相同的日志条目：

Aug 14 11:20:38 vps named[31247]: 14-Aug-2013 11:20:38.032 security: error: client 127.0.0.1#29403: view public: request has invalid signature: TSIG domain2.com.au.: tsig verify failure (BADKEY)

来自这个 nsupdate：

nsupdate -k Kdomain2.com.au.+157+35454.key
server localhost
zone domain2.com.au.
update add test.domain2.com.au. 86400 IN A 10.20.30.40
show
send

我收集的是正确的生成方法：

dnssec-keygen -a HMAC-MD5 -b 512 -n HOST domain2.com.au.

named.conf（为保护隐私，IP 已更改）：

acl ipv4                { 0.0.0.0/0; };
acl ipv6                { 2000::/3; ::1; fe80::/10; fec0::/10; };
acl safehosts           { 127.0.0.0/8; 3.2.2.40; 44.44.14.12; };

include "/etc/bind/rndc.key";

controls {
        inet * port 953
        allow { safehosts; } keys { "rndc-key"; };
};

options
{
        auth-nxdomain           yes;
        empty-zones-enable      no;
        zone-statistics         yes;
        dnssec-enable           yes;
        listen-on               { any; };
        listen-on-v6            { any; };
        directory               "/etc/bind/db";
        managed-keys-directory  "/etc/bind/keys";
        memstatistics-file      "/etc/bind/data/bind.memstats";
        statistics-file         "/etc/bind/data/bind.qstats";
};

logging
{
## CUT ##
};

view "public"
{
    recursion           yes;
    allow-query-cache   { safehosts; };
    allow-recursion     { safehosts; };

zone "." IN {
    type            hint;
    file            "root.zone";
};

zone "0.0.127.in-addr.arpa" {
    type            master;
    allow-update    { none; };
    allow-transfer  { none; };
    file            "0.0.127.in-addr.arpa.zone";
};

zone "localhost" {
    type            master;
    allow-update    { none; };
    allow-transfer  { none; };
    file            "localhost.zone";
};

zone "3.2.2.in-addr.arpa" {
    type            master;
    allow-update    { none; };
    allow-transfer  { none; };
    file            "3.2.2.in-addr.arpa.zone";
};

zone "domain1.com.au" {
    type            master;
    notify          yes;
    allow-update    { key "rndc-key"; };
    allow-transfer  { key "rndc-key"; };
    file            "domain1.com.au.zone";
};

zone "domain2.com.au" {
    type            master;
    notify          yes;
    allow-update    { key "rndc-key"; };
    allow-transfer  { key "rndc-key"; };
    file            "doomain2.com.au.zone";
};
};

/etc/bind/rndc.key:

key "rndc-key" {
    algorithm hmac-md5;
    secret "vZwCYBx4OAOsBrbdlooUfBaQx+kwEi2eLDXdr+JMs4ykrwXKQTtDSg/jp7eHnw39IehVLMtuVECTqfOwhXBm0A==";
};

Kdomain1.com.au.+157+35454.private

Private-key-format: v1.3
Algorithm: 157 (HMAC_MD5)
Key: vZwCYBx4OAOsBrbdlooUfBaQx+kwEi2eLDXdr+JMs4ykrwXKQTtDSg/jp7eHnw39IehVLMtuVECTqfOwhXBm0A==
Bits: AAA=
Created: 20130814144733
Publish: 20130814144733
Activate: 20130814144733

Answer 1

解决方案：

我不知道为什么，但它现在正在工作。我做的唯一事情是：

# chown -R named:named /var/named 

# find . -type d -exec chmod 770 {} \; 

# find . -type f -exec chmod 660 {} \;