Top 12 Open-Source Alternatives to Port Authority

The top open-source alternatives to Port Authority are Angry IP Scanner, ipcalc, and ZMap. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

Angry IP Scanner Landing Page
1

Angry IP Scanner

Open-source and cross-platform network scanner designed to be fast and simple to use
Pricing:
- Open Source
#Monitoring Tools #Network Scanning #Network Security 32 social mentions
ipcalc Landing Page
2

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ipcalc

IP Calculator. ipcalc takes an IP address and netmask and calculates the resulting broadcast, network, Cisco wildcard mask, and host range. By giving a second netmask, you can design subnets and supernets....
Pricing:
- Open Source
#Monitoring Tools #Network Scanning #Security 9 social mentions
ZMap Landing Page
3

ZMap

ZMap is a fast single packet network scanner designed for Internet-wide network surveys.
Pricing:
- Open Source
#Security #Security Monitoring #Monitoring Tools 7 social mentions
Zabbix Landing Page
4

Zabbix

Track, record, alert and visualize performance and availability of IT resources
Pricing:
- Open Source
- Free
#Monitoring Tools #Performance Monitoring #DevOps Tools 5 social mentions
Ralph Landing Page
5

Ralph

Ralph is full-featured Asset Management, DCIM and CMDB system for data center and back office.
Pricing:
- Open Source
#Monitoring Tools #Log Management #Product Deployment
Vernet Landing Page
6

Vernet

Vernet - Network Analyzer and Monitoring Tool
Pricing:
- Open Source
#Monitoring Tools #Security #Network Scanning
Wireshark Landing Page
7

Wireshark

Wireshark is a network protocol analyzer for Unix and Windows. It lets you capture and interactively browse the traffic running on a computer network.
Pricing:
- Open Source
#Monitoring Tools #Log Management #Performance Monitoring 11 social mentions
OnionCat Landing Page
8

OnionCat

An IPv6-Transparent TOR Hidden Service Connector.
Pricing:
- Open Source
#Security #Monitoring Tools #VPN
Vistumbler Landing Page
9

Vistumbler

Vistumbler is a wireless network scanner for Windows Vista and Windows 7. Features:
Pricing:
- Open Source
#Monitoring Tools #Log Management #Development
runZero Landing Page
10

runZero

runZero is a comprehensive cyber asset attack surface management solution with the fastest and easiest way to full asset inventory. Gain essential visibility and insights for every asset connected to your network.
Pricing:
- Open Source
- Freemium
- Free Trial
- $5000.0 (500 assets)
#CAASM #Cyber Asset Management #Network Scanning 5 social mentions
Nagios Landing Page
11

Nagios

Complete monitoring and alerting for servers, switches, applications, and services
Pricing:
- Open Source
#Monitoring Tools #Performance Monitoring #Log Management
Cabot Landing Page
12

Cabot

Self-hosted, easily-deployable monitoring and alerts service - like a lightweight PagerDuty
Pricing:
- Open Source
#Monitoring Tools #Website Monitoring #Uptime Monitoring 2 social mentions