![Dnsperf DNS 缓存](https://linux22.com/image/764993/Dnsperf%20DNS%20%E7%BC%93%E5%AD%98.png)
我安装了 dnsperf 和 unbound,我想在我的 centos 服务器上缓存 DNS 记录列表,我使用 dnsperf 来缓存 dns 列表
[root@mail bin]# cat domains.txt
facebook.com. MX
google.com. MX
gmail.com. MX
twitter. MX
dnsperf -s 8.8.8.8 -d domains.txt
Statistics:
Queries sent: 20
Queries completed: 20 (100.00%)
Queries lost: 0 (0.00%)
Response codes: NOERROR 20 (100.00%)
Average packet size: request 29, response 67
Run time (s): 1.107204
Queries per second: 18.063519
Average Latency (s): 0.166944 (min 0.005329, max 1.096674)
Latency StdDev (s): 0.235990
然而,执行此命令后,我期望这些记录被缓存,但这并没有发生
查询仍然需要时间,并且查询似乎没有缓存