Kicking the Tires: Verisign DNS Firewall


Cognitio has been evaluating the new Verisign DNS Firewall along with its Recursive DNS service for the last several weeks. Our bottom line conclusion: Integration of the Verisign DNS Firewall into an existing environment couldn’t be more seamless, configuration and management are a breeze, and it delivers immediate benefit to the security posture of any environment. For more information on the DNS Firewall and other Verisign Security Services check out their website: [link].

What is a firewall?

Network World

Network-based firewalls have become almost ubiquitous across US enterprises for their proven defense against an ever-increasing array of threats. A recent study by network testing firm NSS Labs found that up to 80% of US large businesses run a next-generation firewall. Research firm IDC estimates the firewall and related unified threat management market was a $7.6 What is a firewall?


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Cisco security warnings include firewall holes, Nexus software weaknesses

Network World

Cisco has issued another batch of security warnings that include problems in its Firepower firewall (FXOS), Unified Computing System (UCS) software and Nexus switch operating system (NX-OS).

Machine learning in Palo Alto firewalls adds new protection for IoT, containers

Network World

Palo Alto Networks has released next-generation firewall (NGFW) software that integrates machine learning to help protect enterprise traffic to and from hybrid clouds , IoT devices and the growing numbers of remote workers.

Palo Alto Networks: A Next Generation Firewall


The Palo Alto Networks security platform natively brings together all key network security functions, including advanced threat protection, firewall, IDS/IPS and URL filtering. Communications Companies Company Cyber Security Hot Technologies Security Companies Cisco Systems IP address Juniper Networks Network Security Palo Alto Palo Alto California Palo Alto Network WildFire Palo Alto Networks protects thousands of enterprise and governments from cyber threats.

Why bother with firewalls?

IT Toolbox

I get the purpose of firewalls. Every modern operating system has firewalls installed by default these days and even the average modem has a firewall built in. In short, just about every computer under the sun has some sort of firewall built in and you cannot access the internetThey are supposed to block people and connections from doing things they are not supposed to do.

Cisco issues firewall, SD-WAN security warnings

Network World

Amongst Cisco’s dump of 27 security advisories today only one was rated as critical – a vulnerability in its Firepower firewall system that could let an attacker bypass authentication and execute arbitrary actions with administrative privileges on a particular device.

VMware firewall takes aim at defending apps in data center, cloud

Network World

VMware has taken the wraps off a firewall it says protects enterprise applications and data inside data centers or clouds. Unlike perimeter firewalls that filter traffic from an unlimited number of unknown hosts, VMware says its new Service-defined Firewall gains deep visibility into the hosts and services that generate network traffic by tapping into into its NSX network management software, vSphere hypervisors and AppDefense threat-detection system.

Cisco uncorks 26 security patches for switches, firewalls

Network World

Cisco has bundled 25 security advisories that describe 26 vulnerabilities in Cisco NX-OS switch and Firepower FXOS firewall software. Also see What to consider when deploying a next generation firewall. | The vulnerabilities span a number of problems that would let an attacker gain unauthorized access, gain elevated privileges, execute arbitrary commands, escape the restricted shell, bypass the system image verification checks or cause denial of service (DoS) conditions, Cisco said.

To secure industrial IoT, use segmentation instead of firewalls

Network World

Each connected endpoint, if breached, creates a backdoor into the other systems. The internet of things (IoT) has been top of mind for network and security professionals for the better part of the past five years. This has been particularly true for the area of industrial IoT (IIoT). Connected industrial devices are nothing new, but most IT people aren’t familiar with them because they have been managed by operational technology (OT) teams.

Cisco warns a critical patch is needed for a remote access firewall, VPN and router

Network World

Cisco is warning organizations with remote users that have deployed a particular Cisco wireless firewall, VPN and router to patch a critical vulnerability in each that could let attackers break into the network. out of 10 on the Common Vulnerability Scoring System lets a potential attacker send malicious HTTP requests to a targeted device.

Flaws expose Cisco small-business routers, firewalls to hacking

Network World

Three models of Cisco wireless VPN firewalls and routers from the small business RV series contain a critical unpatched vulnerability that attackers can exploit remotely to take control of devices. The vulnerability is located in the Web-based management interface of the Cisco RV110W Wireless-N VPN Firewall, RV130W Wireless-N Multifunction VPN Router and RV215W Wireless-N VPN Router.

Cisco starts patching firewall devices against NSA-linked exploit

Network World

Cisco Systems has started releasing security patches for a critical flaw in Adaptive Security Appliance (ASA) firewalls targeted by an exploit linked to the U.S. National Security Agency. The exploit, dubbed ExtraBacon, is one of the tools used by a group that the security industry calls the Equation, believed to be a cyberespionage team tied to the NSA.

IPSLA: Your IT Early Warning System


What we really need is an early warning system. The system doesn’t need to be smart enough to tell us exactly what’s wrong or how to fix it. IPSLA is best used together with the network management system (NMS) you already own. The HTTP command allowed me to download that web page every five minutes, giving me a 24/7 picture on the availability and performance of that system. It’s an incredibly useful early warning system for your network. Nathaniel Crocker.

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What users love (and hate) about 4 leading firewall solutions

Network World

While always an integral part of a company’s security procedures, firewalls are becoming even more important as more companies move to the cloud and software defined networks. A firewall is a network security system that controls and monitors incoming and outgoing network traffic, based on preset security parameters. Firewalls create a barrier between a secure internal network and a potentially less-secure outside network.

Vendor management and looking beyond SMB firewalls, anti-virus, and data backups

IT Toolbox

I just had lunch with a long-time business colleague who specializes in IT consulting and network systems integration for small and medium-sized businesses. From servers to PBXs and everything in between, his company sells, installs, and manages entire network environments for its customers. Companies like my colleague’s are the backbone of the enormously large group of businesses

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How OPM Could Have Avoided the Data Breach


During that time, the credentials were likely used to break into OPM’s systems. Given this timeline it is clear that the hackers had plenty of opportunity to rummage through systems; some evidence even points to re-occurring attacks going back for at least the last year. The one thing that is clear is that this breach went undiscovered by the OPM team and its threat defense system for as much as several months.

IDG Contributor Network: Barracuda protects industrial IoT with network-based firewall

Network World

Many industrial IoT systems have open doors that create unintended vulnerabilities. How do hackers identify vulnerable systems? How do IoT firewalls protect against such threats? Many industrial systems use TCP Port 502, which allows two hosts to establish a connection and exchange streams of data. Scans from services such as Shodan identify systems that have an open TCP port 502 that could be vulnerable.

DoS technique lets a single laptop take down an enterprise firewall

Network World

At a time when the size of distributed denial-of-service attacks has reached unprecedented levels, researchers have found a new attack technique in the wild that allows a single laptop to take down high-bandwidth enterprise firewalls. ICMP is commonly used for the ping network diagnostic utility, and attacks that try to overload a system with ping messages -- known as ping floods -- use ICMP Type 8 Code 0 packets.

Embrace DBaaS to Speed Up Mobile App Development


While many of the lessons we have learned from our web-based systems apply to mobile apps, there are some interesting new challenges in the way that we manage our data. This increase in usage leads to increased demands on your backend systems. The reasons for this frequent choice is due to the architectural traits of these database systems. Operations teams need to ensure that they are able to achieve SLAs far greater than the typical internal system has to achieve.

DARPA explores new computer architectures to fix security between systems

Network World

Air-gapping is the common practice of physically isolating data-storing computers from other systems, computers and networks so they theoretically can’t be compromised because there is nothing connecting the machines. Also read: What to consider when deploying a next generation firewall | Get regularly scheduled insights: Sign up for Network World newsletters ].

Outbound Traffic Filtering | Roadmap to Securing Your Infrastructure

Linux Academy

This is filtering provided at the network edge by a firewall with rules (ACLs) restricting what internal users are allowed to access. Some firewalls have the ability to filter by an application (layer 7 firewalls), but we’re going to concentrate on standard packet-filtering firewalls and their capabilities. Review Your Firewall Logs to Find Infections. Now that outbound filtering is enabled, we can review firewall logs for blocked outbound traffic.

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What if your Camera Security System Itself is Not Secured?


Though a camera security system is installed to pare down the risk of burglaries and protect family and business assets from criminals. Home automation, alarm systems, Wi-Fi home surveillance systems are the powerful technologies that apart from protecting our possessions, also raising the standard of living. With a Wi-Fi home surveillance system, you can access the footage of any camera installed in your home or office. Security Camera System Vulnerability.

Dell patches critical flaws in SonicWALL Global Management System

Network World

Dell has patched several critical flaws in its central management system for SonicWALL enterprise security appliances, such as firewalls and VPN gateways. If left unfixed, the vulnerabilities allow remote, unauthenticated attackers to gain full control of SonicWALL Global Management System (GMS) deployments and the devices managed through those systems.

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Cisco turns out security patches 25 high-threat flaws for IOS, IOS XE

Network World

If you are a security admin with lots of systems running Cisco IOS and IOS XE software today is decidedly not your day. The vulnerabilities impact a wide-range of Cisco gear as IOS and IOS XE are the company’s most widely used operating systems. The warnings affect firewalls, wireless access points and switches. Cisco this week posted 25 “High” rated security advisories that stem from 34 vulnerabilities the company suggests should be fixed as soon as possible.

Solutions for Cybersecurity Defense – What’s effective?

Doctor Chaos

In an architecture where products share telemetry among themselves, you get a view of the end-to-end topology including network switches, access points, web application firewalls, load balancers, endpoints and other devices across the network for a further drill down for status and statistics.

Arista embraces segmentation as part of its zero-trust security

Network World

The new software, Macro-Segmentation Service (MSS)-Group, expands the company’s MSS security-software family, which currently includes MSS Firewall for setting security policies across customer edge, data-center and campus networks.

4 Ways to Deal with Rising Enterprise Resource Planning Security Risks

IT Toolbox

As companies and organizations grow and technology integrates all aspects of business processes, enterprise resource planning (ERP) systems continue to expand in an attempt to keep pace. Traditional security measures such as firewalls and encryption are stillOne thing that hasn’t changed is the need for superior security to protect sensitive information and financial investments.

Looking into an intelligent cloud future

David Linthicum

I sat in many meetings in 2009 and heard “over my dead body,” and “we’ll never run systems outside of our firewalls.” Do you know what IT will be doing 10 years from now? I can anticipate a few patterns that will remain, but for the most part, we tend to have short attention spans when it comes to technology.

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How does your SaaS vendor respond to the scalability question.

Social, Agile and Transformation

Ask some CTO’s about how their product scales and they’ll whip out a logical diagram showing you redundant networks, redundant firewalls, load balancers, clustered application servers, redundant databases, and SAN storage. How do they monitor their systems for service level and capacity issues? Social, Agile, and Transformation.

How To Fix iPhone Cannot Connect To iTunes Store


You can visit the Apple system page to check if the iTunes Store system is down. This page is available on Apple’s official website and contains information about the system status of Apple Services, Stores, and iCloud. Make sure Apple’s system is not down.

Cybersecurity jobs are everywhere, and non-tech professionals are taking them

Tech Republic Security

There's a lot more to cybersecurity than just systems, firewalls, and passwords. Much of it is people, laws, regulations, and social engineering, and that has led to non-tech workers being perfect fits

Leveraging Digital Publishing Platforms with DRM for Secured Content Distribution


Cyberattack susceptibility – Traditional file-sharing tools that require users to bypass firewalls before they download or upload files are no longer secure. The software puts you at risk of man in the middle , denial-of-service , and other threats to your system.

Best of TechEd 2013: 13 FREE Hands-on Labs for Enabling YOUR.

IT Pros Rock!

Be an Early Expert on Windows Server 2012, Hyper-V Server, System Center 2012, Azure and Windows 8. - Powered by System Center. System Center 2012. For detailed requirements for firewall configurations and Internet connectivity, see that enable you to more easily control system administration and accelerate automation. Sign in. IT Pros ROCK! at Microsoft.

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Step-by-Step: Build a FREE SharePoint 2013 Dev/Test Lab in the.

IT Pros Rock!

Be an Early Expert on Windows Server 2012, Hyper-V Server, System Center 2012, Azure and Windows 8. - Powered by System Center. System Center 2012. In the Virtual Machine Operating System Selection list, select Windows Server 2012 Datacenter and click the button. In the Virtual Machine Operating System Selection list, select SQL Server 2012 SP1 Enterprise and click the button. Close Windows Firewall with Advanced Security window. Sign in.

5 Critical Regulations for Cyber Security Compliance

Doctor Chaos

It mandates that businesses have firewalls, encryption and safeguards in place to protect confidential financial information during transactions of any sort. With these guidelines, they can secure their data and information system by improving their cyber defense.

Step-by-Step: Running FREE Linux Virtual Machines in the Cloud.

IT Pros Rock!

Be an Early Expert on Windows Server 2012, Hyper-V Server, System Center 2012, Azure and Windows 8. - Powered by System Center. System Center 2012. This will navigate to the Endpoints page for this virtual machine, listing all firewall endpoint traffic that is currently permitted inbound to this virtual machine. In the YaST2 Control Center main menu, use arrow keys to select System –> System Services (Runlevel) to start the Web server.

What Business Users Should Do To Mitigate DDoS Threats


If you don't understand what you have got you will never be able to keep systems patched and will have a hard time changing default passwords. Use a DNS firewall to reduce two major issues: 1) users visiting sites known to have malicious code that threatens your enterprise and 2) malicious code inside your enterprise that seeks to beacon out to its controller. We recommend Verisign's DNS Firewall. Bob Gourley.

Bayshore Networks: Cloud- and on-premises-based IoT cybersecurity technology for industrial enterprises


The company’s policy-based Information Technology/Operational Technology (IT/OT) Gateway, an alternative to next-generation firewalls in some settings, inspects and filters industrial data for customers in fields such as manufacturing, connected cars and smart cities. The Bayshore IT/OT Gateway software provides operational and security policy for Industrial Automation and Control Systems (IACS). Research Team.

Exploit found in Supermicro motherboards could allow for remote hijacking

Network World

Also see: What to consider when deploying a next-generation firewall | Get regularly scheduled insights: Sign up for Network World newsletters ]. BMCs are designed to permit administrators remote access to the computer so they can do maintenance and other updates, such as firmware and operating system patches. A security group discovered a vulnerability in three models of Supermicro motherboards that could allow an attacker to remotely commandeer the server.

Security Vulnerabilities Generated by COVID-19 and How to Address Them

Doctor Chaos

It also meant that all of their equipment, the systems they required access to, and related technologies had to be adapted for the new conditions. Because things moved so quickly, it opened up many of these technologies and systems to outside attacks.

SS8’s time machine is designed to automate the hunt for compromises  

Network World

Prevention largely depends on knowing what is bad and priming security devices like firewalls and intrusion prevention systems with the rules necessary to keep bad stuff out. The problem is, something can be bad but nobody knows it yet, so there’s no rule to put in the firewall. This column is available in a weekly newsletter called IT Best Practices. Click here to subscribe.

How to eliminate the default route for greater security

Network World

If portions of enterprise data-center networks have no need to communicate directly with the internet, then why do we configure routers so every system on the network winds up with internet access by default? Part of the reason is that many enterprises use an internet perimeter firewall performing port address translation (PAT) with a default policy that allows access the internet, a solution that leaves open a possible path by which attackers can breach security.

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