Securing your users

Default installations of almost any operating system are prime targets for hackers, and Solaris is no exception.These installations are usually devoid of any vendor patches, may be running system daemons with more privilege than necessary, and are likely to use insecure protocols.This chapter is designed to get you to begin thinking about Solaris in terms of security by examining the shortcomings of the default Solaris installation, as well as the tools available for monitoring the system. Most intrusions will result in your Solaris systems displaying uncharacteristic...

428p tailieuvip13 19-07-2012 34 11   Download

Unauthorized access is when an unauthorized entity gains access to an asset and has the possibility to tamper with that asset. Gaining access is usually the result of intercepting some information in transit over an insecure channel or exploiting an inherent weakness in a technology or a product. Getting access to corporate network resources is usually accomplished by doing some reconnaissance work. Most likely, the corporate network will be accessed through the Internet, tapping into the physical wire, remote modem dial-in access, or wireless network access.

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What does a typical BCS network look like? Most installations today have a dedicated BCS network with centralized control via an operator’s terminal in the facility manager’s office. There is no Internet (or LAN) connection, and thus no IT threat. However, the trend today is toward greater connectivity to enable new services, convenience, and savings on infrastructure costs. Newer buildings have network connections to the Inter- net. But even so, most BCS networks still have few resources that are of value to the typical “hacker”. ...

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A firewall is a device that controls the flow of information between your computer and the internet, similar to a router. Most modern operating systems include a software firewall. In addition to the operating system’s firewall, the majority of home routers have a firewall built in. Refer to your user’s guide for instructions on how to enable your firewall. Once your firewall is enabled, consult the user’s guide to learn how to configure the security settings and set a strong password to protect it against unwanted changes. ...

5p khongmuonnghe 04-01-2013 27 3   Download

Whether you are an experienced Security or System Administrator or a Newbie to the industry, you will learn how to use native, "out-of-the-box", operating system capabilities to secure your UNIX environment. No need for third-party software or freeware tools to be and stay secure! This book will help you ensure that your system is protected from unauthorized users and conduct intrusion traces to identify the intruders if this does occur. It provides you with practical information to use of the native OS security capabilities without the need for a third party security software application....

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LAN and Ethernet switches are usually considered as plumbing. They are easy to install and configure, but it is easy to forget about security when things appear to be simple. Multiple vulnerabilities exist in Ethernet switches. Attack tools to exploit them started to appear a couple of years ago (for example, the well-known dsniff package). By using those attack tools, a hacker can defeat the security myth of a switch, which incorrectly states that sniffing and packet interception are impossible with a switch.

361p vusuakhonghat 28-05-2009 542 251   Download

What is a VPN? Cisco Documentation on VPN • A VPN is a Virtual Private Network • Now, as more and more companies need access for remote users, mobile users or remote offices, your current architecture can be augmented with a VPN • A Virtual Private Network is a network that’s created by encryption (Tunneling) across another unsecured medium, like the Internet • What is great about Cisco and VPN’s is that all Cisco devices can be configured as a VPN enabled device solely by the IOS feature set itself. There is a concentrator series, but...

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When the concept of a network without wires was first suggested more than two decades ago, it sparked the imagination of scientists, product vendors, and users around the globe eager for the convenience and flexibility of a free roaming connection. Unfortunately, as the variety of wireless solutions began to emerge, anticipation turned to disappointment.The first wave of solutions proved inadequate for the networking, portability, and security needs of a changing IT environment.

513p maiphuong 11-08-2009 353 135   Download

PHP security, just like PHP itself, has advanced. Updated for PHP 5.3, the 2nd edition of this authoritative PHP security book covers foundational PHP security topics like SQL injection, XSS, user authentication, and secure PHP development. Chris Snyder and Tom Myer also delve into recent developments like mobile security, the impact of JavaScript, and the advantages of recent PHP hardening efforts. Pro PHP Security, Second Edition will serve as your complete guide for taking defensive and proactive security measures within your PHP applications.

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If your GSM phone doesn’t have a SIM card installed, you can’t connect to mobile networks for voice and data services, but you can connect to a Wi-Fi network to sign into your Google Account and to use all the features of your phone, except placing a cell phone call. (CDMA phones don’t rely on a SIM card to connect to mobile networks.) If you start a GSM Android phone the first time without a SIM card, you’re asked if you want to touch Connect to Wi-Fi to connect to a Wi-Fi network (instead of to a mobile network) to set up your phone. To learn more,...

384p tailieuvip13 24-07-2012 51 10   Download

Now more than ever, it is imperative that users be able to protect their system from hackers trashing their Web sites or stealing information. Written by a reformed hacker, this comprehensive resource identifies security holes in common computer and network systems, allowing system administrators to discover faults inherent within their network- and work toward a solution to those problems.

670p muathu_102 28-01-2013 59 10   Download

Whether you develop web applications or mobile apps, the OAuth 2.0 protocol will save a lot of headaches. This concise introduction shows you how OAuth provides a single authorization technology across numerous APIs on the Web, so you can securely access users’ data—such as user profiles, photos, videos, and contact lists—to improve their experience of your application.

80p titatu_123 01-03-2013 37 10   Download

pring Security 3.1" is an incremental guide that will teach you how to protect your application from malicious users. You will learn how to cleanly integrate Spring Security into your application using the latest technologies and frameworks with the help of detailed examples. This book is centred around a security audit of an insecure application and then modifying the sample to resolve the issues found in the audit.

456p titatu_123 01-03-2013 34 9   Download

Also discussed is one of the most fundamental and important topics of concern to any systems administrator: what to do when a system will not boot. When the inevitable happens, knowing the right things to look for and having some tricks up your sleeve may possibly help you avoid a potential nightmare and a major loss of service for your users. Understanding these tools is fundamental to getting through the RHCE Debug exam.

42p mylinh 17-08-2009 48 8   Download

With the Android platform fast becoming a target of malicious hackers, application security is crucial. This concise book provides the knowledge you need to design and implement robust, rugged, and secure apps for any Android device. You’ll learn how to identify and manage the risks inherent in your design, and work to minimize a hacker’s opportunity to compromise your app and steal user data.

112p hoa_can 29-01-2013 19 7   Download

To help ensure security, passwords should be used carefully. These recommendations will help protect your passwords: • Never write down your password. • Never share your password with anyone. • Never use your network logon password for another purpose. • Use different passwords for your network logon and the Administrator account on your computer. • Change your network password every 60 to 90 days or as often as required in your specific environment. • Change your password immediately if you think it has been compromised....

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Introduction to Check Point Mobile for Windows Check Point Mobile for Windows is a remote access client for easy, secure connectivity to corporate resources over the internet, through a VPN tunnel.The Installation Process Important - To install a Remote Access Client on any version of Windows, you need Administrator permissions. Consult with your system administrator. To install a Remote Access Client: 1. Log in to Windows with a user name that has Administrator permissions. 2. Get the installation package from your system administrator, and double-click the installation package. 3.

17p hoangtumayman 20-08-2012 26 4   Download

Home Security Store caters to the do-it-yourself home or business owner who knows true safety: understanding and installing your own alarm system. If there’s one household appliance that you should know how to operate, it’s your alarm system. That’s why we stock the best and most user-friendly brands in the industry. From Honeywell to DSC, we have the tools to help you build the peace of mind you and your family deserve.

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The Installation Process Important - To install a Remote Access client on any version of Windows, you need Administrator permissions. Consult with your system administrator. To install a Remote Access client: 1. Log in to Windows with a user name that has Administrator permissions. 2. Get the installation package from your system administrator, and double-click the installation package. 3. Follow the installation wizard. Note - On Windows Vista and Windows 7, there may be a prompt to allow access, depending on the UAC settings....

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Attackers can infect your computer with malicious software, or malware, in many different ways. They can take advantage of unsafe user practices and flaws in your computer’s programs (flaws including vulnerabilities and unsecured services and features) and use social engineering (in which an attacker convinces someone to perform an action such as opening a malicious email attachment or following a malicious link). Once your computer is infected, intruders can use the malware to access your computer without your knowledge to perform unwanted actions.

11p khongmuonnghe 04-01-2013 29 3   Download