PBNJ is a network tool that can be used to give an overview of an machine or multiple machines by identifying the details about the services running on them. PBNJ is different from other tools because it is based on using a scan from nmap parsed to amap. PBNJ parses the data from a scan […]
Tag Archive | "network-security"
Packet sniffing goes hi-tech? What’s wrong with ethereal? The equipment that technician Mark Klein learned was installed in the National Security Agency’s “secret room” inside AT&T’s San Francisco switching office isn’t some sinister Big Brother box designed solely to help governments eavesdrop on citizens’ internet communications. Rather, it’s a powerful commercial network-analysis product with all […]
Honestly, I always thought it’s ok.. Why not, if someone puts a seat in the middle of a public walkway I can sit on it right? I don’t need to ask permissions, nor fear I am doing something wrong. Likewise if someone broadcasts an open wireless network into my house or office or a public […]
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: […]
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 […]
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 […]
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 […]