Open Source Networking: 60 Replacements for Popular Networking Tools: Page 2

These open source networking apps can help administrators set up, maintain, secure and manage their networks.
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Open Source Networking: Multi-Function Server

16. ClearOS

Replaces: Windows Small Business Server

This software allows small business owners to set up their own networks with a server that offers file and printer sharing, anti-virus, Web server, mail server, firewall, content filtering, VPN, multi-WAN and many other features. It also comes in a professional version with paid support and additional apps. Operating System: Linux.

17. SME Server

Replaces: Windows Small Business Server

Also aimed at small and medium-sized enterprises, SME Server is based on CentOS and RedHat Linux. It offers easy administration, file and print sharing, mail server, firewall, directory services, Web application server and more. Operating System: Linux.

18. Zentyal

Replaces: Windows Small Business Server

Small businesses can use this app as a gateway, infrastructure manager, unified threat manager, office server, unified communication server or all of the above. It's goal is to provide "a single, easy-to-use platform to manage all your network services." Operating System: Linux.

Open Source Networking: Network Firewalls

19. Devil-Linux

Replaces: Barracuda Firewalls, Check Point Appliances

Devil-Linux originated as a hardened version of Linux meant for use as a firewall/router. However, now it can also be used as an application server, as well as a network firewall. Operating System: Linux.

20. Turtle Firewall

Replaces: Barracuda Firewalls, Check Point Appliances

Turtle allows administrators to configure iptables to set up a Linux-based firewall. It includes a Web interface, or you can directly modify XML files. Operating System: Linux.

21. Shorewall

Replaces: Barracuda Firewalls, Check Point Appliances

Another iptables-based firewall, Shorewall can be used on a PC used as a dedicated firewall, a multi-function gateway/router/server or on a standalone GNU/Linux system. It doesn't claim to be the easiest Linux firewall to use, but it does claim to be the most flexible and the most powerful. Operating System: Linux.

22. IPCop

Replaces: Barracuda Firewalls, Check Point Appliances

Aimed at home or SOHO users, IPCop also helps users configure a system as a Linux firewall for their network. Unlike some of the other Linux firewall options, it features a user-friendly Web-based interface. Operating System: Linux.

23. Vuurmuur

Replaces: Barracuda Firewalls, Check Point Appliances

Yet another iptables firewall, Vuurmuur boasts a simple-to-learn configuration tool that allows for very complex setups. Features include secure remote administration, traffic shaping and powerful monitoring capabilities. Operating System: Linux.

24. m0n0wall

Replaces: Barracuda Firewalls, Check Point Appliances

While most of the firewalls on our list run on Linux, this one runs on BSD. It was designed for appliances, but it can also be used on standard PCs. Operating System: FreeBSD.

25. pfSense

Replaces: Barricuda NG Firewall, Check Point Appliances

Downloaded more than 1 million times, this m0n0wall fork was designed for use on standard PCs. It functions as a firewall and a router for enterprise networks, small home networks and everything in between. Operating System: FreeBSD.

Open Source Networking: Network Management

26. OpenNMS

Replaces: IBM Tivoli Network Manager, OpManager

The "world's first open source, enterprise grade network management application platform," OpenNMS has been helping administrators monitor their networks for more than a decade. It's highly customizable and highly scalable, and it offers automated and directed discovery and provisioning, event and notification management, service assurance, and performance measurement capabilities. Operating System: Windows, Linux, OS X, iOS.

27. RANCID

Replaces: Orion NCM, CiscoWorks LAN Management Solution

Short for "Really Awesome New Cisco confIg Differ," RANCID discovers and tracks configuration details for routers and other devices. It supports a variety of hardware, including Cisco routers, Juniper routers, Catalyst switches, Foundry switches, Redback NASs, and ADC EZT3 muxes. Operating System: Linux.

Open Source Networking: Network Monitoring

28. Zenoss

Replaces: IBM Tivoli Network Manager, OpManager

Zenoss helps IT departments monitor and manage their networks, applications and servers, and it includes support for virtualized and cloud environments. Commercial products based on the open source community version are available through Zenoss, Inc. Operating System: Linux, OS X.

29. Nagios

Replaces: Nimsoft, Orion NPM, OpManager

The self-described "industry standard in IT infrastructure monitoring," Nagios helps users "achieve instant awareness of IT infrastructure problems," by monitoring servers, switches, applications, and services. The link above will take you to the open source version; enterprise versions can be found at Nagios.com. Operating system: Linux, Unix.

30. Opsview

Replaces: IBM Tivoli Network Manager, OpManager

Designed for use in DevOps environments, Opsview offers a unified view of physical, virtual and cloud-based systems, and it's compatible with Nagios plug-ins. In addition to the free Core version, it also comes in Pro, Enterprise and MSP versions. Operating System: Linux.

31. Munin

Replaces: Nimsoft, Orion NPM, OpManager

Named for a Norse god of memory, Munin aims to help network administrators analyze trends and figure out why performance problems occur. It offers a Web interface, easy installation and easy use. Operating System: Linux, OS X.

32. RRDTool

Replaces: Nimsoft, Orion NPM, OpManager

RRDtool calls itself "the open source industry standard, high performance data logging and graphing system for time series data." It's been incorporated into numerous other networking tools, including Endian and Cacti Operating System: Windows, Linux.


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