Firewalls And Infrastructure Security - 1201 Words

Firewalls and Infrastructure Security A firewall is a network device, hardware, software, or a combination of the two, whose purpose is to enforce a security policy across its connections. It is comparable to a wall that has a window where the wall serves to keep things out, except those permitted through the window. A security policy acts like the glass in the window; it permits some things to pass, light, while blocking others, air. The heart of a firewall is the security policy that it enforces. Security policies are a series of rules that define what traffic is permissible and what traffic is to be blocked or denied. These are not universal rules, and there are many different sets of rules for a single company with multiple†¦show more content†¦Advanced firewalls employ stateful packet filtering to prevent several types of undesired communications. Should a packet come from outside the network, in an attempt to pretend that it is a response to a message from inside the network, the firewall will have no record of its being requested and can discard it, blocking access. As many communications will be transferred to high ports, above 1023, stateful inspection will enable the system to determine which sets of high communications are permissible and which should be blocked. The disadvantage to stateful inspection is that it takes significant resources and processing to do this type of inspection and this reduces efficiency and requires more robust and expensive hardwa re. This type of inspection is essential in todays comprehensive networks. As they are in routers, switches, servers, and other network devices, Access control lists are a cornerstone of security in firewalls. Just as you must protect the device from physical access, Access control lists do the same task for electronic access. Firewalls can extend the concept of Access control lists by enforcing them as well at a packet level when packet-level stateful filtering is performed. This can add an extra layer of protection, making it more difficult for an outside attacker to breach a firewall. Some high-security firewalls also employ application layer proxies. As the nameShow MoreRelatedA Brief Note On Firewalls And Network Security954 Words   |  4 PagesJoshua Theophilus Jacqueline Stanton ITSA 255-4121 23 November 2015 Firewalls and Network Security The cyberspace has become a major concern to all stakeholders in view of persistent threats and attacks to IT infrastructures around the globe. Individuals, corporate entities and even governments have become victims of anonymous attacks in one form or the other. As a result of these, security professionals have continued to design and implement policies that can help protect valuable assets and vitalRead MoreDuke Energy Plan And Address The Security Aspects Of Its Network1712 Words   |  7 PagesFirewall Application Introduction Duke Energy should carefully plan and address the security aspects of its network by implementing appropriate firewalls. Duke Energy should implement appropriate security management practices and controls when maintaining and operating a secure network. It is imperative to ensure that the architecture of its network complies with industry standard security requirements. Duke Energy s IT organizations should commit to the ongoing process of maintaining the securityRead MoreSecurity Assessment - Aircraft Solutions Essay examples1349 Words   |  6 PagesCourse Project: Security Assessment and Recommendations – Phase I amp; II Aircraft Solutions Table of Contents Executive Summary†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦..1 Company Overview†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦..1 Hardware Vulnerability†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦...2 Policy Vulnerability†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦..3 Hardware Solution†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦4 Policy Solution†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦...5 Summary†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦6 Executive Summary The purpose of this paper is to explore and assessRead MoreProtecting Information with a Secure Network Essay687 Words   |  3 PagesAlternative Solution? 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The private-public network edge is considered particularly vulnerable to intrusionsRead MoreCommunication Networks Linking Smart Grid1364 Words   |  6 Pages SCADA vulnerabilities Increased communication: Communication networks linking smart grid or any other critical infrastructure devices and systems is creating more access points to the devices, hence chances of being attacked are increasing, Increased complexity: The systems are becoming more complex to understand hence establishing a strong security in the system is becoming a difficult task. Use of shared technology: The SCADA systems are using a major portion of common technologies, these technologiesRead MoreA Comprehensive Suite Of Managed Security Services827 Words   |  4 Pagessuite of managed security services, providing you with 24/7/365 management and monitoring of your security systems. Our globally available services are managed by a recognized team of experts, bringing years of experience into the equation when delivering secure solutions to your business. A steadfast firewall is one of the key elements of your network’s infrastructure. Without a secure firewall, hackers can easily infiltrate your most critical data. MACCIUS’ managed security services shield youRead MoreReview Of Tools Of The Trade1483 Words   |  6 PagesInformation Technology (IT) infrastructure, however, the tools specifically to manage a firewall and scan a network, and the universally reliable knowledge bases are the three decisive requisites (Davis, Schiller, Wheeler, 2011). In this critical thinking report an assessment has been provided for one predominant tool from each of these essential categories. The first tool highlighted is SecureTrack developed by Tufin Software Technologies Ltd. is one of the principal firewall management solutions (TufinRead MoreCritical Infrastructure Protection ( Cip )898 Words   |  4 PagesAmerican Transmission Corporation, WI. Dec ‘14 – Oct ‘15 Critical Infrastructure Protection (CIP) Consultant †¢ Responsible for ensuring ATC’s ability to remain compliant with NERC CIP standards, working with functional area teams to ensure that they have the necessary information to ensure compliance. †¢ Lead project for Role based training with functional areas to develop content in support for CIP requirements. †¢ Support the development and roll out of Core CIP training requirements. †¢ Worked