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Posts Tagged ‘security’

Best Security for Your Network

Tuesday, March 9th, 2010

Network security is usually in the forefront of every network administrator’s mind. Protecting critical and confidential data, resources, and multimedia traffic, as well as business continuity from the myriad of potential attackers in cyberspace is key in maintaining not only business functions, but also your customers’ confidence.  What is the best way to secure your network?

Most routers and switches, and other network components have built in security protections like firewalls, intrusion prevention systems, encryption, etc.  But as you expand your network to include laptops, smartphones, and other mobile devices, you broaden the attack surface, leaving your network– and therefore your data– open to hackers.

One way to add an additional level of security, and peace of mind, is through Cisco’s ASA 5500 Series Adaptive Security Appliances. These components, designed for all network sizes, provide intelligent threat defense and highly secure communications services. In short, they help organizations lower their deployment and operational costs while delivering comprehensive network security through a unified security platform. Members of the ASA 5500 Series Adaptive Security Appliances include the ASA5505-50-BUN-K9, the 8-port ASA5505-50-BUN-K8, and the ASA5500-HW .

Keep in mind that you can keep costs down by purchasing these components used for much less than the distribution chain through a reputable alternate distributor.

Obama’s Future Outlook on Cybersecurity and Cisco

Wednesday, June 24th, 2009

On May 29, 2009, President Obama made an announcement regarding the U.S. government’s role in ensuring cybersecurity for the country as a whole, businesses operating within the U.S., and American citizens in the Cyberspace Policy Review:
Assuring a Trusted and Resilient Information
and Communications Infrastructure
. The 76-page document stated,

The globally-interconnected digital information and communications infrastructure known as “cyberspace”underpins almost every facet of modern society and provides critical support for the U.S. economy, civil infrastructure, public safety, and national security. This technology has transformed the global economy and connected people in ways never imagined. Yet, cybersecurity risks pose some of the most serious economic and national security challenges of the 21st Century. The digital infrastructure’s architecture was driven more by considerations of interoperability and efficiency than of security. Consequently, a growing array of state and non-state actors are compromising, stealing, changing, or destroying information and could cause critical disruptions to U.S. systems. At the same time, traditional telecommunications and Internet networks continue to converge, and other infrastructure sectors are adopting the Internet as a primary means of interconnectivity. The United States faces the dual challenge of maintaining an environment that promotes efficiency, innovation, economic prosperity, and free trade while also promoting safety, security, civil liberties, and privacy rights.1 It is the fundamental responsibility of our government to address strategic vulnerabilities in cyberspace and ensure that the United States and the world realize the full potential of the information technology revolution.

But how can you, as a business owner, provide security for both your business’ data as well as keep confidential information about your vendors, customers, and employees private? There are several ways. Among them are: the use of one or more members of the Cisco PIX Security Appliance Series. PIX delivers cost effective, easy to redistribute user and application policy implementation, multi-vector attack protection, and secure connectivity services. Cisco is the leader in security-featured IT networking equipment. The Cisco Self-Defending Network enables IT organizations to protect critical assets, enforce business policies, and rapidly identify and respond to evolving threats while easing the administrative burden of IT making the total cost of ownership of Cisco network devices lower.

Router Security Features Made Easy: What is IDS?

Sunday, February 15th, 2009

If you’re not an I.T. wiz, some of the descriptions of the router security features might seem more like a foreign language than anything aimed at helping you decipher which integrated services router is right for your company. We’re here to help you understand the security features of a router by breaking them down for you one at a time. Let’s talk about IDS.

First off, what is IDS?

IDS stands for ‘intrusion detection system’ and is commonly used along with an IPS (intrusion prevention system) for maximum security protection, but doesn’t always have to. Some IDS’s stand alone, but do little to actually protect a network from intrusion. While an IPS is designed to actually shut down a network the moment an intrusion is detected to keep it safe, an IDS acts more as an observer. The IDS is passive. It simply examines packets of data traversing the network and it does so from afar—the IDS is located in a monitoring port. When the IDS sees something that doesn’t meet configured rules, it sets off an alarm. For systems with the IPS also, the IPS then kicks in and either shuts down the network or isolates the malicious traffic.

The problem with an IDS, other than it doesn’t do more than simply detect something bad has entered the network, is that it tends to be pessimistic—and often sees ‘good’ data as ‘bad’ data simply because it doesn’t recognize that the good data is good. That creates an atmosphere were false positives abound and like a car alarm that goes off not only when a thief is breaking in, but also when the wind hits it just right, or the rain, or a tree branch, administrators spend significant time dealing with things that aren’t problematic at all.

There are certainly some pluses to an IDS though. An IDS has the ability to detect more, and different types of attacks, that a simple firewall can’t. An IDS can sense data-driven attacks, host-based attacks, network attacks, unauthorized logins, and malware like worms, Trojan horses, and viruses. The reason they’re more sensitive is that IDS’s employ multiple methods in threat detection all at once.