查看客户端的IP地址，机器名，MAC地址，登陆名等信息

SELECT s.session_id,s.login_time,s.host_name,p.loginame,s.program_name,c.client_net_address,c.client_tcp_port    ,p.net_address as client_mac_address, c.local_net_address,c.local_tcp_port,c.net_transportFROM sys.dm_exec_connections c     JOIN sys.dm_exec_sessions s ON c.session_id = s.session_id     JOIN sys.sysprocesses p ON s.session_id = p.spid

select host_name,client_net_address from #t group by host_name,client_net_address

drop table #t