bind遇到递归查询的最大数量问题处理

logging {
channel default_debug {
file “data/named.run”;
severity dynamic;
};
channel warning {
file “data/named.log” versions 3 size 2048k;
severity warning;
print-category yes;
print-severity yes;
print-time yes;
};
channel query {
file “data/query.log” versions 3 size 2048k;
severity info;
print-category yes;
print-severity yes;
print-time yes;
};
category default {warning;};
category queries {query;};

};

上述配置抓日志，配置在/etc/named.conf下，发现named.log下报错

network: warning: not listening on any interfaces

client: warning: client @0x7fde752ca260 (no-peer): TCP client quota reached: quota reached

在 /etc/named.conf下 的options下配置

recursive-clients 300000;

定义递归查询最大数量，一个递归约20K，按照实际内存去算最大支持量