统信桌面操作系统专业版V20（1070）
Linux uos 5.10.97-arm64-desktop

uos基础 systemd-resolve 清除dns缓存，重新解析域名

root@uos:/home/code# systemd-resolve --flush-caches
root@uos:/home/code# systemd-resolve --statistics
DNSSEC supported by current servers: yes

Transactions
Current Transactions: 0
  Total Transactions: 2

Cache
  Current Cache Size: 0
          Cache Hits: 0
        Cache Misses: 0

DNSSEC Verdicts
              Secure: 0
            Insecure: 0
               Bogus: 0
       Indeterminate: 0
root@uos:/home/code#