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 large scale and illuminate network activity in detail. Bro can also be used for different purposes like used it for forensic investigation, network measurements, trafic base line 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 BSD license. Bro blacklist the malware or harmful source after the indication of administrator, and it has a 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 provice different security tool like ELSA, Xplico, NetworkMiner, Snort, Suricata, Bro, OSSEC, Sguil, Squert, Snorby. Its comes with approximately 50 different security packages and provide the 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 on small environment and allow the user to deploy distributed systems in any network enterprise environment.
OpenDaylight
Linux Foundation hosted the OpenDayligh open source project. It can be utilize for any scale and size by enabling the SDN(software-defined networking) and NFV(Network Functions Visualization) networks. It has pluggable, moduler and flexible controller that consist of on its own Java Virtual Machine. It can be used in any Java supported platform. OpenDaylight provide 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 develop the open SDN framework which consist of blueprints and code.
Wireshark
Wireshark is a free and open source famous protocol analyzer. You can examine network at a microscopic level very efficiently. Wireshark is used for analysis,network troubleshooting,development of communication protocol. It can be run on number of operating systems like Linux, OS X, BSD, Solaris and Microsoft Windows. Tshark is the version of Wireshark it is terminal based solutionl. It provide the most powerful display filters in the industry and capture files compressed with gzip. Wireshark provide the very deep inspection of protocols and also enable for us live capture and offline analysis. Wireshark used CSV or plain text for exporting output in XML.
Congress
Congress is an OpenStack project provide policy fo 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 organization and regulatory compliance in dynamic infrastructure. The main responsibility of Cognress is policy enforcement. Congress allow administrator to use high level languages to describe business logic and it also provide the plug gable architecture which connects collection of cloud services.