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更新 bind 软件包触发器 named ,来在严重程度为 info 时给出 SERVFAIL 错误。

Solution In Progress - Updated -

Issue

  • 将 bind 软件包从 bind-9.9.4 更新至 bind-9.11.4 ,当名称查询无法通过 named 解析时,将严重程度为 'info' 时的 'SERVFAIL' 错误记录到 /var/log/messages 中。
[root@test ~]# tail /var/log/messages
Jul 2 13:27:20 slave named[3884]: client @0x7fa4740e98e0 ::1#36944 (dnssec-failed.org): query failed (SERVFAIL) for dnssec-failed.org/IN/A at ../../../bin/named/query.c:8580

如果 named 有启用了调试日志的 bind-9.9.4 ,则这种类型的错误只记录到 /var/named/data/named.ca(默认),但启用 bind-9.11.4 时,只要查询日志在 named.conf 中处于活动状态,同样的错误就会记录到 /var/log/messages 中,而无需任何配置更改。

Environment

  • Red Hat Enterprise Linux 7
  • bind-9.11.4

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