Tag Archive | "Open-Source-Software"


13 May 2010 | 8,380 views

Suricata – Open Source Next Generation Intrusion Detection and Prevention Engine

The Suricata Engine is an Open Source Next Generation Intrusion Detection and Prevention Engine. This engine is not intended to just replace or emulate the existing tools in the industry, but will bring new ideas and technologies to the field. Basically it’s a is a multi-threaded intrusion detection/prevention engine engine available from the Open Information [...]

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13 May 2008 | 3,760 views

oCERT – Responsing to Flaws in Open Source Software

So a new initiative – the Open Source Computer Emergency Response Team known as oCERT has been set up one of the main sponsors being Google (read more here – Contributing to Open Source Software Security). The oCERT project is a public effort providing security handling support to Open Source projects affected by security incidents [...]

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10 March 2006 | 22,784 views

SSL VPNs and OpenVPN – Part IV

4. Brief How-to …. Creating Multiple clients to Single site tunnels. Example of using PKI to create a client-to-site VPN: For a road warrior or roaming/multiple user scenario, static keys based VPNs don’t scale well. You will need to implement a PKI if you have Hub and Spoke architecture of VPN. From the OpenVPN.net website: [...]

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09 March 2006 | 21,417 views

SSL VPNs and OpenVPN – Part III

3. Brief How-to ….. OpenVPN and Site-to-Site Tunnels. OpenVPN can be implemented either Site-to-site or client-server model. I will take example configurations of both models. If you want to implement site-to-site configuration, the best way is to use static-keys instead of PKI. Using static keys, you can have your VPN tunnel up and running in [...]

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08 March 2006 | 16,447 views

SSL VPNs and OpenVPN – Part II

2. Why OpenVPN Here, in this article, I will lay down the emphasis on one important Open-Source SSL VPN software written by James Yonan and contributed by several others, which proposes security without the inherent complexity of IPsec AND using a trusted design of client component and VPN server. Usually VPNs require end points which [...]

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07 March 2006 | 27,240 views

SSL VPNs and Using OpenVPN

Requirement: To connect to a VPN server in a different country. Situation: A country which has proxies at every gateway. Issues: VPN based on IPSec is fussy when it comes across networks which are NAT’ted/ proxied. The Security Parameters Indexes don’t match and clients do not get connected. Objective: To connect VPN server in a [...]

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