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Based on obscure ARPANET access control system for terminal servers, later documented and extended by Cisco Forwards username and password to TACACS server, returns authorization response XTACACS, Extended TACACS Adds support for multiple TACACS servers, logging, extended authorization Can independently authorize access via PPP, SLIP, telnet and ssh TACACS+...
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The next time you pick up that car phone to conduct last-minute business on the way to the airport, take a second to consider whether it would matter if your conversation were overheard by an AT&T executive, or some other third party. Unless both parties are using encryption or...
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Behind every attack & security problem is – bad software A major concern is that security professionals are often un-aware the problem is – bad software Encrypt your data lines? The riskiest category of software today is Internet-enabled apps “Using encryption on the Internet is the equivalent of arranging...
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Secure the weakest link Low-hanging fruit is picked first, I.e. Attack end points, not encrypted links Risk analysis ID’s the weakest link Apportion resources according to risk Practice defense in depth One layer is never enough Overlapping & redundant Fail securely Failure is unavoidable Allow least privilege Only...
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It’s all a “confidence” game. Providing adequate confidence that … … Data will not be altered or misused. … Only authorized access is allowed. … Customers’ wishes are being honored. Recent surveys of online consumers 70% said privacy was important to them, but only 40% read privacy statements 53%...
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When you start talking about lots of bytes, you get into prefixes like kilo, mega and giga, as in kilobyte, megabyte and gigabyte (also shortened to K, M and G, as in Kbytes, Mbytes and Gbytes or KB, MB and GB). The following table shows the multipliers: Basic UNIX...
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Entity authentication using public key cryptography Extends and clarifies ISO 9798 entity authentication standard Signed challenge/response protocol: Server sends server nonce SN Client generates client nonce CN Client signs SN and CN and returns to server Server verifies signature on the data Mutual authentication uses a three-pass protocol Server...
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Tool Use Netstat.exe Displays protocol statistics and current TCP/IP network connections. Arp.exe Displays and modifies the IP-to-Physical address translation tables used by address resolution protocol (ARP). Net.exe Net used with [ ACCOUNTS | COMPUTER | CONFIG | CONTINUE | FILE | GROUP | HELP | HELPMSG | LOCALGROUP...
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Things to consider: Full Administrative Audit Trail All management operations logged Full User Audit Trail All session activity (login, logout, timeout) All network flows (not just web) All System Events Support for External Syslog Servers https://www.bestitdocuments.com/Samples
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Audit Evidence Requirement. IS Auditing Guideline. Information Systems Audit and Control Computer Security Incident Handling: Step-by-Step. System Administration Networking and Security (SANS) Institute Publications. Computer Security Incident Response Policy. The Center for Information Technology. Detecting Signs of Intrusion. CERT Coordination Center. Carnegie Mellon Software Prepare to respond to intrusions....
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Remote authentication for user services Provides an authentication server for one or more clients VPN, Wreless or legacy (dial-in hosts) Client communicates with RADIUS server via encrypted communications using a shared secret key Radius Protocol: Client forwards user access request to RADIUS server Server replies with Reject access Allow...
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Databases Structured data Application specific Performance driven Limited solutions available Email Out of control Semi-structured data Well-understood applications Distributed files Unstructured data Content searchable (documents) Non-content searchable (media) SRM/HSM type solutions Emerging data indexing solutions Mainframe files Semi-structured data HSM solutions Many products...
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Simple PKC-based challenge/response protocol Server sends challenge Client signs challenge and returns it Server verifies clients signature on the challenge Vulnerable to chosen-protocol attacks Server can have client sign anything Algorithm-specific attacks (eg RSA signature/encryption duality) https://www.bestitdocuments.com/Samples
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Firewall Advantages and Limitations Now that the theory behind a firewall has been presented, this section will focus on examining the several kinds of firewalls available as well as highlighting the kind of protection they can offer. The position that a firewall sits with respect to the rest of...
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Conceptually, there are two types of firewalls: 1. Network Level 2. Application Level They are not as different as you might think, and latest technologies are blurring the distinction to the point where it’s no longer clear if either one is “better” or “worse.” As always, you need to...
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Abuse of Privilege: When a user performs an action that they should not have, according to organizational policy or law. Access Control Lists: Rules for packet filters (typically routers) that define which packets to pass and which to block. Access Router: A router that connects your network to the...
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Define network domain security policy Create high level structure Examine other firewalls Create low-level structure Test firewall / Review security policy Periodic testing /Maintenance Firewall Product Evaluation Checklist Identification – Who are we buying from Education and Documentation – Is there sufficient and clear documentation that comes with the...
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Set the institution’s definition of “disaster” Driven by Business Impact Priority of Mission Critical Applications Priority of Mission Critical Business and IT Services Define Requirements Set Threshold for Recovery Questions to Consider: What is the threshold on recovery time (RTO) and recovered data (RPO)? What is the objective during...
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HA offers Application Resiliency Critical Applications can remain active even when the primary hardware they rely on goes down Applications can remain active through maintenance cycles and backups HA offers the promise of minimal down time Staff can remain working on HA equipment almost transparently Customers can keep using...
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What is it “Ability to recover from the loss of a complete site, whether due to a natural disaster or malicious intent.” “A plan of action to recover from an unlikely event of a severe or catastrophic business disruption.” It’s NOT a planning for Mean-Time-To-Recovery (MTTR) from daily operational...
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Any threat that uses multiple means of propagation AND requires an integrated response from more than one technology Discovering Vulnerabilities How vulnerabilities are discovered: By accident or chance Browsing through CVS entries, software development, bug databases, or change logs Using source code scanning tools ITS4, Flawfinder, or RATS Utilizing...
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The best backup strategy starts with the Restore! Determine what data needs to be archived Create a plan Base backup Incremental backup Differential backup Frequency and speed of data restore Consider your network environment Operating systems (Windows, Unix, etc.) Firewalls (bandwidth, etc.) Routers, Switches Carefully consider the backup media...
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Goal to have all imagery served to all A -B Corporate users from a single location Evaluation Outsource to Spatial Energy Host Internal via ESRI Image Server www.bestitdocuments.com
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Single storage location for all eGIS data Access for Corporate Users Web Based Mapping Access to all Geo-spatial Data Compliant with Corporate Security Policy Subscription Service to Download Geo-spatial Data Map based access to Documents in Document Management System Map based access to Permits including geographic coverage Collaboration Geo-spatial...
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Background Companies are suffering from an overwhelming influx of security data from an array of software and hardware solutions, including antivirus software, firewalls, intrusion detection systems, access control, identity management, single sign-on, authentication and many more. A typical enterprise has one or more of each of these solutions deployed,...
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Business Need / Problem Statement The current Vulnerability Assessment is inadequate and requires a large number of customization and man-hours to produce any meaningful report data. Current system is lacking key features such as centralized management, role-based access control, limited data export formats and lacks the reports that management...
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New Assets, Technologies, Patches, Configurations Discovered Tracked by: Spreadsheets Asset Inventory System New Vulnerabilities and Threats Discovered Validated by: Alerts Web Site Research Information Collected and Validated Remediation: Database Spreadsheet Validation Tests Correlate Vulnerabilities to Assets Deployment Validated by: Risk Analysis Tools Develop Critical Vulnerability and Threat Risk-Ranked List...
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Identify and potentially mitigate risk at all layers Perimeter Defenses: Packet Filtering, Stateful Inspection of Packets, Intrusion Detection Network Defenses: VLAN Access Control Lists, Internal Firewall, Auditing, Intrusion Detection Host Defenses: Server Hardening, Host Intrusion Detection, Auditing Application Defenses: Validation Checks, Verify HTML / Cookies Source, Secure IIS Data...
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Security Event Management Proactively discover and detect intrusive activities/vulnerabilities Provide real-time prevention Provide a multi-layered approach to intrusion defense (Host/Network) Correlation & Visualization Integrate any event from the enterprise Collect, consolidate, and normalize events across the enterprise Filter events, alert and notify personnel, execute countermeasures Response, Reporting – Forensics...
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Proactive, not reactive! Enhance your process: Capability, Deployment and Sustainability Access to assured and validated content Risk-based for work prioritization Step-by-step remediation instructions Real-time asset and technology inventory Task completion and tracking in enterprise reports
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Inaccurate inventory of system configurations and software patches. Complexity of integrating/managing existing tools. Inefficient/unreliable research capabilities/methods. Lack of resources and cycles. Inability to quantify metrics. Costly resources and tools. www.bestitdocuments.com
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