我尝试通过终端中的 telnet 命令连接到localhost 3310端口上的ClamAV守护程序 clamd ：telnet 127.0.0.1 3310
Trying 127.0.0.1...
Connected to 127.0.0.1.
Escape character is '^]'.
nIDSESSION [pressed ENTER button on keyboard]
nPING [pressed ENTER]
但它给出了错误：
1: Only nCMDS\n and zCMDS\0 are accepted inside IDSESSION. ERROR
1: Error processing command. ERROR
Connection closed by foreign host.
输入 zPING\0 [pressed ENTER] 或 nPING\n 无效，再次提示错误。
你能提出什么建议吗？