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Top Forums UNIX for Beginners Questions & Answers Open ports from source to destination Post 303043065 by Neo on Friday 17th of January 2020 05:21:06 AM
Old 01-17-2020
I use basic port scan tools; as all sys admins should do port scans from time-to-time to check open ports (basic IT security).

From a quick Goggle search:

Code:
8 Port Scanner Tools for Network Administrator
1 TCP Port Scanner.
2 Nmap.
3 Netcat.
4 Port Authority.
5 Advanced Port Scanner.
6 Network Scanner by MiTeC.
7 PortQryUI.
8 NetScanTools.

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FCNSQ(8)							  Open-FCoE Tools							  FCNSQ(8)

NAME
fcnsq - Fibre Channel Name Server Query Tool SYNOPSIS
fcnsq host --gpn port_id [-q | --quiet] fcnsq host --gnn port_id [-q | --quiet] fcnsq host --gspn port_id [-q | --quiet] fcnsq host --gsnn wwpn [-q | --quiet] fcnsq ? DESCRIPTION
The fcnsq command performs Fibre Channel Name Server queries for a user-specified FC Host. The supported name server query commands include: Get Port Name (GPN), Get Node Name (GNN), Get Symbolic Node Name (GSNN), and Get Symbolic Port Name (GSPN) as described in FC-GS-3 for the Common Transport (CT) services. fcnsq takes the host bsg name as the input for the target host. Host bsg name must be a valid bsg device, e.g., "host12" as derived from /dev/bsg/fc_host12. For each name server query command, the argument is either a Port ID or a World Wide Port Name. Port IDs and World Wide Names must be specified in hexadecimal. To disable verbose output, use the --quiet option. OPTIONS
host --gpn port_id Get Port Name by Port ID for host. host --gnn port_id Get Node Name by Port ID for host. host --gspn port_id Get Symbolic Port Name by Port ID for host. host --gsnn wwpn Get Symbolic Node Name by World Wide Port Name for host. -q, --quiet Disable verbose output. ? Display a help message with basic usage instructions. EXAMPLES
Query Get Port Name (GPN) from host12 for Port ID 0xbf0027 fcnsq host12 --gpn bf0027 Query Get Node Name (GNN) from host12 for Port ID 0xbf0027 fcnsq host12 --gnn bf0027 Query Get Symbolic Port Name (GSPN) from host12 for Port ID 0xbf0027 fcnsq host12 --gspn bf0027 Query Get Symbolic Node Name (GSNN) from host12 for WWWPN 0x1000001B213C9DDA fcnsq host12 --gsnn 0x1000001B213C9DDA SEE ALSO
fcoeadm(8) SUPPORT
fcnsq is part of the fcoe-utils package, maintained through the Open-FCoE project. Resources for both developers and users can be found at the Open-FCoE website http://open-fcoe.org/. Open-FCoE 06/09/2010 FCNSQ(8)
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