equivalent of Windows PortQry utility to test udp/tcp services listening on remote servers

[sunhux G]

Hi,

I'm looking for Linux/Unix (Solaris/HPUX) equivalent of the following
Windows tool :

PortQryUI - User Interface for the PortQry Command Line Port Scanner :
http://www.microsoft.com/downloads/details.aspx?familyid=8355e537-1ea6-4569-aabb-f248f4bd91d0&displaylang=en

How To: Use Portqry to Troubleshoot Active Directory Connectivity:
http://support.microsoft.com/kb/816103

Need something that's not "rpm" build - just an executable like top which
can be run off command line straight after it's being copied into the Unix
OS.
If can be run straight away without compilation, better still (dont want
source code)

"netstat -an | grep ... "  only do it for local host

Thanks
U