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Author: Omar Santos, John Stuppi
Pub Date: 2015
ISBN: 978-1-58720-566-8
Pages: 608
Language: English
Format: PDF
Size: 51 Mb

Ccna Security 210-260 Pdf Download Free

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Is a best-of-breed Cisco exam study guide that focuses specifically on the objectives for the CCNA Security Implementing Cisco Network Security (IINS) 210-260 exam. Cisco Security experts Omar Santos and John Stuppi share preparation hints and test-taking tips, helping you identify areas of weakness and improve both your conceptual knowledge and hands-on skills. Material is presented in a concise manner, focusing on increasing your understanding and retention of exam topics.
Presents you with an organized test-preparation routine through the use of proven series elements and techniques. “Do I Know This Already?” quizzes open each chapter and enable you to decide how much time you need to spend on each section. A list of official exam topics makes referencing easy. Chapter-ending Exam Preparation Tasks help you drill on key concepts you must know thoroughly.
The official study guide helps you master all the topics on the CCNA Security Implementing Cisco Network Security (IINS) 210-260 exam, including

• Security concepts and threats
• Implementing AAA using IOS and ISE
• Bring Your Own Device (BYOD)
• VPN technology and cryptography
• IP security
• Implementing IPsec site-to-site VPNs
• Implementing SSL remote-access VPNs using Cisco ASA
• Securing Layer 2 technologies
• Network Foundation Protection (NFP)
• Securing the management, data, and control planes
• Understand, implement, and configure Cisco firewall technologies
• Cisco IPS fundamentals
• Mitigation technologies for e-mail, web-based, and endpoint threats

Secure Access

Implementing AAA in Cisco IOS

… that administrator (remember, the local database means the running configuration on that specific router), you must create that same user account ten different times, once on each router. If he ever needs to change the password, it also requires going back to all those ten devices and manually changing it on each one. This solution does not scale well in environments with multiple administrators and many devices.

A solution to this is to have a centralized database where all the usernames and passwords are kept for authentication and what the individual users are allowed to do (the authorization portion of AAA). This is primarily what theAccess Control Server (ACS) can provide. It is a two-part process. The first part is to configure on the ACS server information about the users and their passwords and what those users are allowed to do. The second part is to tell the router that it should refer any of its decisions about authentication or authorization to the ACS server.

Ccna Security 210-260 Pdf Download Pdf

One other note about the wordusers. Often when we refer to the management plane, and we refer to users, those users are very likely administrators who need access to the commandline interface (CLI) or the web management console via HTTP/HTTPS. Also be aware that end users will not need CLI access, but will need access to network services and to have their packets allowed through the router. You can use the ACS server to authenticate either type of user, and you can call on it for authorization for these users. In addition, you can use the ACS server as a destination for logging (called accounting), noting which users access the system and what they do while there.

Virtual Private Networks (VPN)

Ccna Security 210-260 Pdf Download Pc

Implementing SSL VPNs Using Cisco ASA

To use SSL, the user connects to an SSL server, which is a fancy way of saying a web server that supports SSL, by using HTTPS rather than HTTP. An easy way to remember is that the S means secure. Depending on whom you talk to, SSL may also be labeled asTransport Layer Security or TLS. To the end user such as you or I, it represents a secure connection to the server, and to the correct server.

Even if the users does not type in HTTPS, the website could redirect the user behind the scenes to the correct URL. Once there, the browser requests that the web server identify itself. (Be aware that all of this that is about to happen is occurring in the background and does not require user intervention.) The server sends the browser a copy of its digital certificate, which may also be called an SSL certificate. When the browser receives the certificate, it checks whether it trusts the certificate. The browser decides whether it is trusted by looking at the digital signature of the CA that is on the certificate; using the method for verifying a digital signature discussed earlier, the browser determines the certificate is valid based on the signature of the CA (or is not valid). (If the signature is not valid, or at least if our browser does not think the certificate is valid, a pop-up is usually presented to the user asking whether the user wants to proceed.) This is where user training is important and users should be trained never to continue or accept a certificate that the browser does not trust.) Assuming the certificate is trusted, the browser now has access to the server’s public key contained in the certificate.