Paessler PRTG
Paessler PRTG is an all-inclusive monitoring solution with an intuitive, user-friendly interface powered by a cutting-edge monitoring engine. It optimizes connections and workloads, reduces operational costs, and prevents outages. It also saves time and controls service level agreements (SLAs). This solution includes specialized monitoring features such as flexible alerting, cluster failover, distributed monitoring, maps, dashboards, and in-depth reporting.
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AdRem NetCrunch
NetCrunch runs on Windows Server (virtual or physical) and allows for efficient, agentless network monitoring, network visibility and advanced alert and remediation action management system. It can monitor practically any device, system or data source in your network, as non standard data can be pushed to NetCrunch or read from log, file or database to be included in NetCrunch network atlas.
Developed by AdRem Software, NetCrunch includes 540+ predefined monitoring packs and ready to use sensors to track and troubleshoot network services uptime, performance of switches, routers, storage devices and applications, cloud services, bandwidth, and traffic flow. AdRem NetCrunch supports monitoring of all major OS types, such as Linux, Windows, VMWare ESX/ESXi, Mac OS X, and BSD.
It allows creating all types of live network maps, performance charts, flexible dashboards and graphical views that are updated automatically, displaying live status of any monitored device, connection link, metric or alert.
Data collected by NetCrunch can be shared securely via web console or any of over 30 ready to use integrations with most popular help desk systems (Jira, Freshdesk) or group collaboration (Slack, MS Teams, PagerDuty, Trello).
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Sniffnet
Sniffnet is a network monitoring application crafted to assist users in effortlessly tracking their Internet traffic. It not only collects statistics but also delves into detailed network activities, offering extensive monitoring capabilities. The tool prioritizes user-friendliness, making it more accessible than many traditional network analyzers. Available as a completely free and open-source solution, Sniffnet is dual-licensed under MIT or Apache-2.0, with its full source code hosted on GitHub. Built entirely with Rust, this modern programming language enhances the software's efficiency and reliability while prioritizing performance and security. Among its standout features are the ability to choose a network adapter for analysis, implement filters on monitored traffic, observe overall statistics and live charts of Internet activity, export detailed capture reports in PCAP format, and identify over 6,000 upper-layer services, protocols, trojans, and worms. Additionally, it allows users to uncover domain names and ASNs of hosts, as well as trace connections within the local network, making it a versatile tool for network oversight.
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tcpdump
Tcpdump serves as a robust command-line tool for analyzing network packets, enabling users to view the details of packets sent or received over the network their computer is connected to. Compatible with a variety of Unix-like operating systems such as Linux, Solaris, FreeBSD, NetBSD, OpenBSD, and macOS, it leverages the libpcap library for capturing network traffic effectively. This utility can process packets either directly from a network interface card or from a previously recorded packet file, and it offers the flexibility to direct output to either standard output or a file. Users have the option to apply BPF-based filters to manage the volume of packets being analyzed, making it particularly useful in environments experiencing heavy network traffic. Tcpdump is distributed as free software under the BSD license, which promotes accessibility. Moreover, it is often included as a native package or port in numerous operating systems, making updates and ongoing maintenance straightforward for users. This ease of use contributes to its popularity among network administrators and analysts alike.
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