Sunday, May 15, 2011

Networking Articles and Tips

Networking Articles and Tips

WiFi Security Best Practices

Posted: 14 May 2011 11:22 PM PDT

1. Use WPA/WPA2 encryption. Avoid using Open or WEP-encrypted WiFi. Use WiFi Protected Access (WPA) or WPA2 with 802.1x authentication if possible. If you use a Pre-Shared Key (PSK) authentication, use a strong passphrase (aka WPA shared key) that is at least eight characters long and is a combination of alphanumeric and special characters. 2. Change default [...]


Reliable Multicast Framework for Light-weight Sessions and Application Level Framing

Posted: 14 May 2011 11:22 PM PDT

This paper describes SRM (Scalable Reliable Multicast), a reliable multicast framework for light-weight sessions and application level framing. The algorithms of this framework are efficient, robust, and scale well to both very large networks and very large sessions. The SRM framework has been prototyped in wb, a distributed whiteboard application, which has been used on [...]


Application Layer Network Window Management in the SSH Protocols

Posted: 10 May 2011 05:52 AM PDT

A number of network applications make use of multiplexed channels inside of a single TCP connection to handle data transfer and/or control information. Because these channels cannot make use of the TCP windows for flow control they must implement their own. This means that a second window can be imposed on top of the existing [...]


The Evolution of Mobile VPN and its Implications for Security

Posted: 10 May 2011 05:44 AM PDT

This document describes how Virtual Private Networking (VPN) technology is evolving for use in wireless handheld devices. Mobile VPNs enable enterprises and service providers to extend their services to mobile employees and partners without compromising the risk in their existing security standards. Traditionally, Virtual Private Networking (VPN) is discussed in the context of creating a [...]


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Saturday, May 14, 2011

Networking Articles and Tips

Networking Articles and Tips

Towards Automated Auditing for Network Configuration Changes

Posted: 14 May 2011 10:39 PM PDT

IP network operators face the challenge of making and managing low-level device configuration changes to accommodate the rapidly evolving needs of IP  networks. As a first step towards automating this task, we explore a data-driven approach to audit high-level change activity in IP networks, by  reverse engineering low-level longitudinal configuration data. We demonstrate the utility [...]


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Saturday, April 16, 2011

Networking Articles and Tips

Networking Articles and Tips

Multiprotocol Label Switching (MPLS)

Posted: 16 Apr 2011 04:50 AM PDT

Multiprotocol Label Switching (MPLS) This sample configuration shows how to set up a Multiprotocol Label Switching (MPLS) network for further tasks such as Virtual Private Network (VPN) or traffic engineering (see these Sample Configurations on the MPLS Support Page for more information).  An MPLS network is commonly a backbone network comprised of MPLS−enabled routers called Label [...]


Wireless Network Security

Posted: 16 Apr 2011 04:37 AM PDT

WIRELESS NETWORK SECURITY Much attention has been focused recently on the security aspects of existing Wi-Fi (IEEE 802.11) wireless LAN systems. The rapid growth and deployment of these systems into a wide range of networks and for a wide variety of applications drives the need to support security solutions that meet the requirements of a wide [...]


VPN & QOS

Posted: 16 Apr 2011 04:28 AM PDT

The term "VPN," or Virtual Private Network, has become almost as recklessly used in the networking industry as has “QoS” (Quality of Service) to describe a broad set of problems and “solutions,” when the objectives themselves have not been properly articulated. This confusion has resulted in a situation where the popular trade press, industry pundits, [...]


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Monday, April 11, 2011

Networking Articles and Tips

Networking Articles and Tips

What is a Penetration Test ?

Posted: 11 Apr 2011 08:55 AM PDT

Penetration Test  - Much of the confusion surrounding penetration testing stems from the fact it is a relatively recent and rapidly evolving field. Additionally, many organisations will have their own internal terminology (one man’s penetration test is another’s vulnerability audit or technical risk assessment). At its simplest, a penetration-test (actually, we prefer the term security assessment) [...]


The Nuts & Bolts of Networking

Posted: 11 Apr 2011 08:55 AM PDT

Networking is a method that is used to build relationships. These relationships could be with classmates, co-workers, business partners, vendors, service providers and even family. We often attend family reunions where we meet new and distant relations. This is an excellent vehicle for networking.


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