The best open source networking and security software

Bro

Bro is an open-source network security monitor platform. It provide the stability and flexibility at a large scale and illuminates network activity in detail. Bro can also be used for different purposes like used it for forensic investigation, network measurements, traffic baseline and build Network intrusion detection systems (NIDS), etc. Bro is written in C++ and used in different operating systems like Linux, FreeBSD, Mac OS X. It comes under the BSD license. Bro blacklists the malware or harmful source after the indication of the administrator, and it has the ability to apply the firewall rule to block IPs. It supported the features of traffic inspection, attack detection, provide log recording and distributed analysis, etc.

Security Onion

Security Onion is a very excellent software solution for intrusion detection, network security monitoring, and log management. It provides different security tools like ELSA, Xplico, NetworkMiner, Snort, Suricata, Bro, OSSEC, Sguil, Squirt, Snorby. It comes with approximately 50 different security packages and provides centralized documentation without any harm or defect. It is free and open-source software available with publicly open-source code. It is mostly used to run in a small environment and allows the user to deploy distributed systems in any network enterprise environment.

OpenDaylight

Linux Foundation hosted the OpenDayligh open source project. It can be utilized for any scale and size by enabling the SDN(software-defined networking) and NFV(Network Functions Visualization) networks. It has a pluggable, modular and flexible controller that consists of its own Java Virtual Machine. It can be used in any Java-supported platform. OpenDaylight provides the features of integration. You can integrate it with OpenStack to access the features of security groups, distributed virtual router, and load balancing-as-a-service. The community of OpenDaylight develops the open SDN framework which consists of blueprints and code.

Wireshark

Wireshark is a free and open-source famous protocol analyzer. You can examine the network at a microscopic level very efficiently. Wireshark is used for analysis, network troubleshooting, development of communication protocol. It can be run on a number of operating systems like Linux, OS X, BSD, Solaris, and Microsoft Windows. Tshark is the version of Wireshark it is the terminal-based solution. It provides the most powerful display filters in the industry and captures files compressed with gzip. Wireshark provides a very deep inspection of protocols and also enables us to live capture and offline analysis. Wireshark used CSV or plain text for exporting output in XML.

Congress

Congress is an OpenStack project that provides policy for cloud services in order to offer governance and compliance for dynamic infrastructures. The basic purpose of Congress is to provide the extendable open-source framework for the organization and regulatory compliance in dynamic infrastructure. The main responsibility of Congress is policy enforcement. Congress allows the administrator to use high-level languages to describe business logic and it also provides the pluggable architecture which connects a collection of cloud services.