Open Source BSD Network Scanners

OpenVAS Scanner is the scanner component of Greenbone Community Edition and serves as a full-featured vulnerability scanning engine. It executes a continuously updated feed of Vulnerability Tests to identify security weaknesses across systems and services. The scanner is also used within Greenbone Enterprise appliances, which reflects its role in broader vulnerability management workflows. It can be built and installed from source, integrated with other GVM modules, or deployed through Greenbone’s container-based options. The repository includes the current C-based scanner implementation as well as a Rust project intended to simplify and centralize the scanner stack over time. OpenVAS Scanner is best suited for security teams, administrators, and vulnerability management programs that need structured, feed-driven assessment capabilities.

jNetMap is a graphical network monitoring and documentation tool. It will ping all registered devices every x minutes, updating the status according to the result of the ping. Requires Java 8 or higher

Smap is a passive port scanner designed as a drop-in alternative to Nmap while using Shodan.io data. It accepts many familiar Nmap-style command-line arguments and can produce Nmap-like output formats, which makes it easier to integrate into existing workflows. Because it relies on Shodan’s free API, it can scan quickly without directly contacting targets in its default mode. The project emphasizes speed, with support for scanning large numbers of hosts per second. Smap can provide service and version fingerprinting, vulnerability detection, and results in formats such as XML, greppable, normal, JSON, and custom output. It is useful for authorized reconnaissance where fast external visibility matters, while users should remember that passive results may be delayed or incomplete compared with active scanning.

Pure Java Network Tools. Free portable cross-platform. Include: 01) ICMP-ping, 02) ICMP-traceroute, 03) DNS-check resolver, 04) Parallel Host TCP-scanner, 05) IP-calculator, 06) Syslog-server, 07) Local ARP-cache request, 08) Parallel Network Ping-Scanner, 09) Snmp-Get concrete value utility. 10) Parallel ICMP flood utility. 11) Parallel UDP flood utility. 12) TFTP-server. 13) NTP-server. 14) Host TCP-ping. 15) SNMP-MRTG traffic monitor. 16) Anonymous FTP-server. 17) Parallel Network TCP-scanner. 18) Parallel Network SNMP-scanner. 19) Parallel Network DNS-scanner. 20) Parallel SNMP-DoS. 21) Parallel HTTP/HTTPS-DoS Need JRE-1.8: https://www.oracle.com/java/technologies/javase/javase8-archive-downloads.html . Source - https://github.com/harp077/pj-net-tools . If you like this - put a star on https://github.com/harp077/pj-net-tools

PScan: A port scanner for PalmOS Devices. This scanner is being developed by the Blue Collar Hacker's Union and is meant to be built using GNU tools (PRC-Tools, specifically), to be released under GPL.

Fastspy is a multithreaded network port scanner. It minimizes connection idle time performing fast subnet service search, classic port range scan, hosts list scan, and also send user data over a connection to log servers response.

IPtools is an all in one package that includes various TCP/IP tools. Server: - FTP - TFTP - Syslog - Web - Remote Command - General UDP server - Multicast server Client utilities: - Multicast client - TFTP client Starting on version 0.2.0, a powerful network connection tools UBridge is added, it can bridge: - VXLAN (newly released) - UDP sessions - NIC card of the PC - Connections to Cisco Router Simulator "GNS3/dynamips" and H3C Router Simulator (LITO/CEN). UBridge can also be used as a Ethernet over UDP tunnel to remote bridge PC's local NIC, VXLAN, UDP proxy etc. Visit the Wiki page for detail. GUI tools include a network monitoring tool PMON, a SNMP and IP scanner. The project aim is to make them as light weight tools that can be directly executed in command prompt without the need of installation. (Except pmon and UBridge to bridge PC's NIC which require Winpcap). The whole package can be put into USB flash and 伴侶highly portable.

Knocker is a simple, versatile, and easy-to-use TCP security port scanner written in C, using threads. It is able to analyze hosts and the network services which are running on them. It is available for Linux, FreeBSD, Unix, and Windows95/98/2000.

LinScope is GUI(QT), port scanner with enumerating windows network shares (SMB). LinScope can save favorites list. You can add different ip address ranges and scan them apart or together. Linscope searches FTP and HTTP services too.

SiPS is a simple cross-platform TCP Port Scanner. Probable service names based on http://www.iana.org/assignments/port-numbers.

Thank you for your DONATIONS for Pinger alert, STATICTICAL TABLES, send EMAILs or SMS by SMS GATEWAY. Look on the tab files, select and download the version of the operating system that you need of this slight textual code that requires no system update. Network monitoring analyzer, network scanner with ping, traceroute and beeper alert and warning mail sender. Capable of scanning IP INFINIT, automatic detection of the source of network interruptions without GUI interface configurations. More, it is designed for the computer technician who carries a powerful tool in the USB key. In addition, an audible alarm warns you via Telnet or SSH terminal, a log files recorded can be used to convey specific information to the system administrator. It is comes with a configurable for warning by email. lightweight code, coming with the source files, written in C, Email warning sender, ANDROID ping, SPARC, AMD64, traceroute, DETECT SOURCE Downs, Warning by Email, C language

PHP, Perl and MySql based web interface for the Nessus security scanner and Nmap port scanner. The system presents scan results via a Email notification, a HTML interface, or exported to a PDF file.

NetworkTools has 2 components: A protocol analyzer which plays a TCP client or server or pipeline, which sits between a client and server and shows how they communicate. A port scanner can scan a range of IP addresses and ports. See screenshots.

VScan is a small, text-based, platform independent port scanner written in python, which supports multithreading and banner grabbing.

Network scanner built in javascript language to detect hosts up and opened ports in a TCPIP network. It uses javascript , HTML and AJAX with a web browser. Only works fine in MS Internet Explorer.

Target of this project is to code a network scanner which creates the nagios config automatically. Therefore the administrator starts the scanner with an ip address and the scanner results the open ports. nagioscanner provides a web based gui (cgi based)

scanless is a Python command-line utility and library for running port scans through third-party online scanning services. It is built for users who want quick visibility into exposed ports without running a local scanner directly from their own machine. The tool can scan an IP address or domain, choose a specific supported scanner, select a random scanner, or run all available scanners. It supports services such as ipfingerprints, spiderip, standingtech, viewdns, and yougetsignal. scanless can return raw scan output as well as parsed results that include port, state, service, and protocol details. The repository is archived and no longer maintained, so it is best treated as a legacy utility for authorized testing, research, or reference use.

A library of LAN tools based on wxWidgets. A ping, a network scanner searching for all the available PCs,printers etc, a local port scanner, a chat/fileshare and a data-traffic collector . Anything else can be added.

xpoc is a lightweight command-line scanner created for fast emergency response in supply chain vulnerability scanning. It is designed to help security teams test single targets, multiple targets, and target lists through direct input, files, or pipes. The tool can retrieve proof-of-concept plugins from the cloud, list available plugins, synchronize new plugins, and update itself from the command line. It uses the xray YAML POC format and supports plugin writing and loading for TCP and UDP checks. It can also be extended with custom Go plugins for more advanced detection logic, crawling, screenshots, and additional scanner behavior. It is most useful for authorized vulnerability validation, rapid triage, and security teams that already work with the xray ecosystem.