Open Source Linux Network Scanners
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Network Scanners for Linux
View 61 business solutionsBrowse free open source Network Scanners and projects for Linux below. Use the toggles on the left to filter open source Network Scanners by OS, license, language, programming language, and project status.
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Ship Agents FasterGemini Enterprise Agent Platform lets you rapidly build, scale, govern and optimize production-ready agents grounded in your organization's data. The platform enables developers to build custom or pre-built agents for virtually any use case. New customers get $300 in free credits.
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Build Securely on AWS with Proven FrameworksMoving to the cloud brings new challenges. How can you manage a larger attack surface while ensuring great network performance? Turn to Fortinet’s Tested Reference Architectures, blueprints for designing and securing cloud environments built by cybersecurity experts. Learn more and explore use cases in this white paper.
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Angry IP Scanner
A cross-platform network scanner that is fast and simple to use
Angry IP scanner is fast and friendly network scanner for Windows, Linux, and Mac. It is very extensible, allowing it to be used for very wide range of purposes, with the primary goal of being useful to network administrators. -
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OpenVAS Scanner
This repository contains the scanner component for Greenbone Community
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. -
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RustScan
The Modern Port Scanner
The Modern Port Scanner. Find ports quickly (3 seconds at its fastest). Run scripts through our scripting engine (Python, Lua, Shell supported). Scans all 65k ports in 3 seconds. Full scripting engine support. Automatically pipe results into Nmap, or use our scripts (or write your own) to do whatever you want. Adaptive learning. RustScan improves the more you use it. No bloated machine learning here, just basic maths. The usuals you would expect. IPv6, CIDR, file input and more. Automatically pipes ports into Nmap. RustScan is a modern take on the port scanner. Sleek & fast. All while providing extensive extendability to you. Not to mention RustScan uses Adaptive Learning to improve itself over time, making it the best port scanner for you. Speed is guaranteed via RustScan. However, if you want to run a slow scan due to stealth that is possible too. We have tests that check to see if RustScan is significantly slower than the previous version. -
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ZMap
ZMap is a fast single packet network scanner for network surveys
ZMap is a fast single packet network scanner designed for Internet-wide network surveys. On a typical desktop computer with a gigabit Ethernet connection, ZMap is capable scanning the entire public IPv4 address space in under 45 minutes. With a 10gigE connection and PF_RING, ZMap can scan the IPv4 address space in under 5 minutes. ZMap operates on GNU/Linux, Mac OS, and BSD. ZMap currently has fully implemented probe modules for TCP SYN scans, ICMP, DNS queries, UPnP, BACNET, and can send a large number of UDP probes. If you are looking to do more involved scans, e.g., banner grab or TLS handshake, take a look at ZGrab 2, ZMap's sister project that performs stateful application-layer handshakes. ZDNS is a utility for performing fast DNS lookups, such as completing an A lookup for all names in a zone file, or collecting CAA records for a large number of websites. ZDNS contains its own recursive resolver and supports A, AAAA, ANY, AXFR, CAA, CNAME, DMARC, MX, NS, PTR, TXT, etc. -
MongoDB Atlas runs apps anywhereMongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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WatchYourLAN
Lightweight network IP scanner
WatchYourLAN is a local network monitoring tool that displays connected devices, providing insight into network activity and device status. -
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Smap
a drop-in replacement for Nmap powered by shodan.io
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. -
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jNetMap
Graphical network monitoring and documentation tool
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 -
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NetAlertX
Centralized network visibility and continuous asset discovery
NetAlertX is a network visibility and asset intelligence framework for continuous device discovery and monitoring. It is designed for homelabs, IT teams, MSPs, NOCs, and distributed environments that need a centralized view of connected assets. The platform monitors devices, detects changes, tracks unauthorized hardware, and helps maintain a source of truth for network infrastructure. It supports discovery through methods such as arp-scan, Pi-hole imports, DHCP lease imports, UniFi controller imports, and SNMP-enabled router imports. NetAlertX can send notifications through many services, connect with Home Assistant, expose API endpoints, and support custom automation through webhooks and plugins. It also supports multi-site monitoring through Sync Nodes, making it useful for remote sites, VLANs, branch offices, and segmented networks. -
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xpoc
A fast emergency response tool designed for supply chain vulnerability
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. -
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Zeus Scanner
Advanced reconnaissance utility
Zeus-Scanner is an advanced reconnaissance utility designed to simplify web application reconnaissance for security testing. It combines URL parsing, search engine querying, crawling, proxy support, and vulnerability assessment workflows in one tool. The scanner can work with multiple search engines, extract URLs from Google ban and webcache URLs, and parse robots.txt or sitemap.xml files. It also supports proxy configurations, Tor proxy compatibility, and Tor browser emulation for flexible routing during authorized assessments. Zeus-Scanner includes checks for issues such as XSS, SQL injection, clickjacking, exposed admin panels, port scanning, whois lookup, and header protection. It is most useful for penetration testers and researchers who need a broad reconnaissance toolkit, though its older Python 2-style setup makes environment compatibility important. -
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scanless
Online port scan scraper
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. -
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Zippy-Ip-Scanner
Free, open-source IP scanner
Zippy Ip Scanner is a free, open-source cross-platform IP scanning application written in python. -
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pj-net-tools
Pure Java Network Tools
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 -
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cardionet
A beautiful, modern Terminal User Interface (TUI) for nmap
CardioNet simplifies network scanning by providing an intuitive graphical interface for nmap, making it accessible to both beginners and advanced users. Build complex scanning commands visually, execute them in real-time, and export results in multiple formats. -
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Handy TCP/IP Server/Client Tools
Various TCP/IP servers, clients and network management tools
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. -
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TraceMAC - Traceroute for MAC addresses
TraceMAC is a command-line Layer 2 traceroute for Cisco switches
TraceMAC is a Windows/Linux command-line tool that allows you to trace a specific MAC address thru Cisco switches. It works by connecting to a switch using SSH, SNMP, Telnet, HTTP or HTTPS and do some "show commands" and later process the output, this will happen recursively until it finds the switch where that MAC address (PC/Printer/Etc) is directly connected. Note: It works with Cisco switches only and you must have CDP enabled at least on trunks/links between switches! Is tested with Cisco switches: Catalyst: 2960,3560,3750,4948,6509,9200,9300,9500 (All protocols) Nexus: C9332C, 93180YC-EX (NX-OS SSH) Express 500 (HTTP) FYI: It uses Nbtscan.exe (NetBIOS) as a alternative method to discover the mac address of a host and now seems that it is considered a malware. Anyway it is just a simple network tool that can scan the network similar to NMAP or Angry IP Scanner, etc... -
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Pearl DDE
Beautiful Deepin Desktop Environment on Pearl Linux
This special edition release is a twist from Pearl's familiar OS X styled desktop. This custom tweaked version of DDE is safe, beautiful and includes ability to install extra software from either Pearl's Software Manager or Deepin's App Store. Synaptic is also included. Most distros that release a DDE version have issues with multi monitor setup ..We solved that by adding ARANDR. -
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Pearl Desktop (PDE) 12
The Stable Solid Multimedia Workhorse Powerful OS with Eye Candy
Pearl Linux Desktop (PDE) 12 is based on Ubuntu 24.04 LTR. This is your go to work horse daily driver for the advanced as well as the new Linux user. We say YES to APT, Flatpak and Appimages but NO to Snaps. Featuring Firefox-ESR instead of Firefox, Pulseasudio by default however Install package pearl-pipewire-config from our REPO to have pipewire as your default sound server. Very Smooth and Easy Configs. Compiz is the default Window Manager and you may switch window managers without rebooting. Tons of New Software. Pre-Configured SAMBA Shares for Network Shares, Pied Piper handles great sounding natural Text to Speech Voice Models. -
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knocker
A simple, portable port scanner
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. -
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( pro ping )pinger network alert monitor
Pinger alert, STATICTICAL TABLES, send EMAILs or SMS by SMS GATEWAY
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 -
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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.
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VScan is a small, text-based, platform independent port scanner written in python, which supports multithreading and banner grabbing.
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Net Tools for Development
A collection of network-oriented tools
This Eclipse RCP application contains several free, useful network tools. Among others: - Standard network tools: ping, netstat, traceroute, nslookup - A port scanner - Servers: HTTP, FTP, TFTP servers - an HTTP proxy - A TCP tunnel - Clients: FTP client, embeddable PuTTY (for Windows only) -
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IP Scanner (only /24 s.mask) (scan export to .xls) Port Scanner Point to Point Chat Works on linux/windows/mac os
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NetLoony is a complete Apache Server GUI written in 100% Java 1.2. Swing based and can remotely control, configure and build Apache servers. It includes a services(port) scanner and performance monitor, and plans to support other network services.
