With the state Education Support, education industry Information Rapid development, college, teaching educational administration, research management and office automation applications such as construction has begun to take shape. A certain scale of domestic universities have upgraded to Gigabit backbone network, enter the Gigabit era. Gigabit backbone effectively solved Campus Network Within the bandwidth of the shortage of tens of thousands of schools to meet the needs of the user’s network, but the export of regional campus network still faces many challenges. Hillstone rocks Net Branch Campus Network Security Solutions Using the first multi-core architecture Plus, using self-developed StoneOS seamless integration of multi-core CPU, developed a special security chip StoneASICTM and the exchange rate up to 48Gbps internal switching bus, making Hillstone rocks Network Division products and traditional X86 architecture, NP architecture, ASIC architecture when compared to the performance with a more substantial upgrade. Hillstone rocks Network Division Company through long-term practical experience in the education industry, and understand a wide range of user feedback, education, industry, complexity of network status Visit Behavior varied, but the lack of safe and effective protective measures, campus information security, network security issues become increasingly prominent. Has become the education industry information center managers of major concern. Information and network security issues continue to affect the normal teaching and school management, mainly in low forward network, security management measures are not perfect, scoring inside and outside the network hacking, Computer Vulnerabilities widespread misuse of network resources within the user control the intensity of the weak, especially for the ARP deception, Trojan viruses, DDos malicious attacks. Network Security Expert That the education industry is a more complex than the traditional areas, need the security industry, the education sector within the network security in the whole security plays an important position in the general campus network are large, very complex needs. Such as Peking University campus, is the largest campus networks, has completed 220 school buildings, office buildings, dormitories, faculty houses the fiber optic interconnection cable to provide information on nearly 60,000 points, campus networks need to provide a variety of access methods, a unified campus network user authentication, unified management and unified billing and so on. Leading network security equipment vendors and solution providers?? Hillstone rocks Net Branch company, with professional Technology Accumulation of power and business in the education sector to expand the network security in depth, based on deep understanding of the campus network, pragmatic research data, launched a new generation of tailored security solutions for campus network. Hillstone campus network security solutions, using self-developed StoneOS seamless integration of multi-core CPU, developed a special security chip StoneASICTM and the exchange rate of up to 48Gbps internal switching bus, the protection of campus network security, more effective meet the needs of tens of thousands of campus network users to assist schools to complete before the expected business objectives. Hillstone rocks Net Branch company launched the campus network security solutions, has strong anti-strike capability, for applications in various traffic control measures, a comprehensive VPN solution for internal network control and conduct online control, performance, high reliability and high stability, while Hillstone rocks Network Division first encrypted ARP protocol, solve the ARP attack. So far, Hillstone rocks Net Branch companies around education industry has formed a good reputation, with a wide range of users, such as Tsinghua University, Peking University, Beijing Forestry University, Central University of Finance, Xi’an Jiaotong University, North China Electric Power University, Huizhou University, Jinan University, South China University of Technology and other campus network, Hillstone rocks net branch campus network security solutions and universal access to the campus network security device users. Hillstone rocks Network Division will continue adhering to the “close to the market, close to the customer, quickly grasp and meet customer demand”, launched in various industry solutions and products, helping Chinese users access to network security. I am an expert from repairtestequipments.com, while we provides the quality product, such as 12PSB Test Bench , EUS-1001 Tester, repair test equipment,and more.
User Account Control Main article: User Account Control User Account Control is a new infrastructure that requires user consent before allowing any action that requires administrative privileges. With this feature, all users, including users with administrative privileges, run in a standard user mode by default, since most applications do not require higher privileges. When some action is attempted that needs administrative privileges, such as installing new software or changing system settings, Windows will prompt the user whether to allow the action or not. If the user chooses to allow, the process initiating the action is elevated to a higher privilege context to continue. While standard users need to enter a username and password of an administrative account to get a process elevated (Over-the-shoulder Credentials), an administrator can choose to be prompted just for consent or ask for credentials. UAC asks for credentials in a Secure Desktop mode, where the entire screen is faded out and temporarily disabled, to present only the elevation UI. This is to prevent spoofing of the UI or the mouse by the application requesting elevation. If the application requesting elevation does not have focus before the switch to Secure Desktop occurs, then its taskbar icon blinks, and when focussed, the elevation UI is presented (however, it is not possible to prevent a malicious application from silently obtaining the focus). Since the Secure Desktop allows only highest privilege System applications to run, no user mode application can present its dialog boxes on that desktop, so any prompt for elevation consent can be safely assumed to be genuine. Additionally, this can also help protect against shatter attacks, which intercept Windows inter-process messages to run malicious code or spoof the user interface, by preventing unauthorized processes from sending messages to high privilege processes. Any process that wants to send a message to a high privilege process must get itself elevated to the higher privilege context, via UAC. Applications written with the assumption that the user will be running with administrator privileges experienced problems in earlier versions of Windows when run from limited user accounts, often because they attempted to write to machine-wide or system directories (such as Program Files) or registry keys (notably HKLM) UAC attempts to alleviate this using File and Registry Virtualization, which redirects writes (and subsequent reads) to a per-user location within the user profile. For example, if an application attempts to write to :program filesappnamesettings.ini and the user doesn have permissions to write to that directory, the write will get redirected to :UsersusernameAppDataLocalVirtualStoreProgram Filesappname. Bitlocker Drive Encryption Main article: BitLocker Drive Encryption Formerly known as “Secure Startup”, this feature offers full disk encryption for the system volume. Using the command-line utility, it is possible to encrypt additional volumes. Bitlocker utilizes a USB key or Trusted Platform Module (compliant with the version 1.2 of the TCG specifications) to store its encryption key. It ensures that the computer running Windows Vista starts in a known-good state, and it also protects data from unauthorized access. Data on the volume is encrypted with a Full Volume Encryption Key (FVEK), which is further encrypted with a Volume Master Key (VMK) and stored on the disk itself. Windows Firewall Main article: Windows Firewall Windows Vista significantly improves the firewall to address a number of concerns around the flexibility of Windows Firewall in a corporate environment: IPv6 connection filtering Outbound packet filtering, reflecting increasing concerns about spyware and viruses that attempt to “phone home”. With the advanced packet filter, rules can also be specified for source and destination IP addresses and port ranges. Rules can be configured for services by its service name chosen by a list, without needing to specify the full path file name. IPsec is fully integrated, allowing connections to be allowed or denied based on security certificates, Kerberos authentication, etc. Encryption can also be required for any kind of connection. A connection security rule can be created using a wizard that handles the complex configuration of IPsec policies on the machine. Windows Firewall can allow traffic based on whether the traffic is secured by IPsec. A new management console snap-in named Windows Firewall with Advanced Security which provides access to many advanced options, including IPsec configuration, and enables remote administration. Ability to have separate firewall profiles for when computers are domain-joined or connected to a private or public network. Support for the creation of rules for enforcing server and domain isolation policies. Windows Defender Main article: Windows Defender Windows Vista includes Windows Defender, Microsoft’s anti-spyware utility. According to Microsoft, it was renamed from ‘Microsoft AntiSpyware’ because it not only features scanning of the system for spyware, similar to other free products on the market, but also includes Real Time Security agents that monitor several common areas of Windows for changes which may be caused by spyware. These areas include Internet Explorer configuration and downloads, auto-start applications, system configuration settings, and add-ons to Windows such as Windows Shell extensions. Windows Defender also includes the ability to remove ActiveX applications that are installed and block startup programs. It also incorporates the SpyNet network, which allows users to communicate with Microsoft, send what they consider is spyware, and check what applications are acceptable. Parental controls Parental controls control panel Windows Vista includes a range of parental controls for non-domain user accounts. Windows Parental Controls rely on UAC to implement reduced rights account identities needed for offline restrictions. An administrator can apply parental control restrictions to other users on the computer. Facilities include: Web content blocking, including the ability to limit web browsing to “kids websites”, as well as blocking particular categories of content such as “Pornography”, “Drugs”, “Web e-mail”, “Web chat”, and so on. File downloads may also be disabled. Web content filtering is implemented as a Winsock LSP filter. Time limitations on when the account may be used. When active, users are blocked from logging on if not already logged on. If they are logged on and the time limit is reached, user accounts are locked using Fast User Switching without the users being logged out to prevent unsaved data in that account from getting lost. Restrictions on what kind of games may be played. An administrator may choose from one of five different game rating services: ESRB (United States and Canada), PEGI (Europe), USK (Germany), OFLC (Australia and New Zealand), or CERO (Japan). Ratings are used to determine the highest allowed game rating. As with web content blocking, a number of categories of content may also be blocked regardless of game ratings. Restrictions on what programs may be executed. Implemented using Windows Software Restriction Policies. Activity reports to monitor and log what was done under Parental Controls through event logging interfaces APIs expose the policy and in-box restrictions settings, and logging functionality for parental controls functionality to be extended or replaced. Encrypting File System Main article: Encrypting File System Encrypting File System (EFS) in Windows Vista can also be used to encrypt the system page file and the per-user Offline Files cache. EFS is also more tightly integrated with enterprise Public Key Infrastructure (PKI), and supports using PKI-based key recovery, data recovery through EFS recovery certificates, or a combination of the two. There are also new Group Policies to require smart cards for EFS, enforce page file encryption, stipulate minimum key lengths for EFS, enforce encryption of the user Documents folder, and prohibit self-signed certificates. The EFS encryption key cache can be cleared when a user locks his workstation or after a certain time limit. The Encrypting File System rekeying wizard allows the user to choose a certificate for EFS and to select and migrate existing files that will use the newly chosen certificate. Certificate Manager also allows users to export their EFS recovery certificates and private keys. Users are reminded to backup their EFS keys upon first use through a balloon notification. The rekeying wizard can also be used to migrate users in existing installations from software certificates to smart cards. The wizard can also be used by an administrator or users themselves in recovery situations. This method is more efficient than decrypting and reencrypting files. Preventing exploits Windows Vista uses Address Space Layout Randomization (ASLR) to load system files at random addresses in memory. By default, all system files are loaded randomly at any of the possible 256 locations. Other executables have to specifically set a bit in the header of the Portable Executable (PE) file, which is the file format for Windows executables, to use ASLR. For such executables, the stack and heap allocated is randomly decided. By loading system files at random addresses, it becomes harder for malicious code to know where privileged system functions are located, thereby making it unlikely for them to predictably use them. This helps prevent most remote execution attacks by preventing Return-to-libc buffer overflow attacks. The Portable Executable format has been updated to support embedding of exception handler address in the header. Whenever an exception is thrown, the address of the handler is verified with the one stored in the [...]
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There are a variety of measures you can take to insure that your PBX is safe from hackers. Listed below are tips you can use right now to protect your business. 1. Take steps to secure your authorization codes on a permanent basis. Remind employees of the need to keep all access codes secure and change them frequently. 2. Contact your equipment vendors and ask for any and all information on the available security systems in place to detect toll fraud. They should also provide information on monitoring services available to help you quickly detect unusual usage. 3. Work closely with your PBX administrator to ensure that all of the PBX security features available are in place and are being implemented. 4. Unless needed for routine business, block outgoing international calling, 809 and 900 calling capabilities. 5. Conduct regular and routine auditing of your telecommunication systems and bills, especially just after regular vacation months and holiday seasons. It is during these times of year that PBX toll fraud most often occurs. 6. Wherever possible, limit the number of employees who are authorized to use remote access. And if possible, change pass codes and authorization codes when an employee permanently leaves the company. 7. NEVER transfer a call outside your PBX if you are unaware of the identity of the caller. Instruct employees that phone companies will never ask customers to be part of a “test” – no matter how official the caller may sound. 8. Always be alert to possible PBX abuse signs. These could include repeated calls of short duration, sudden increase in 800 usage, or unexplained changes incoming, outgoing or especially after-hours calling patterns. 9. Consider out sourcing your telecom bills to a firm that will provide bill paying and audit services on an ongoing monthly basis. You’ll save money across the board and catch toll fraud at the time it happens. Karen Thatcher is President and CEO of TelCon Associates, Inc. a 32 year old telecom audit and bill management firm. For a 66 page report on PBX safety and security, visit http://www.telconassociates.com
Some window alarms emit not only a loud noise, but a shock that’s designed to scare off intruders. This is a great deterrent, but you’ll need to take care children, pets or unsuspecting visitors won’t be scared or harmed if they accidentally trigger window alarms. Silent alarm windows are another option to consider. When these alarms are triggered, notification is immediately sent to your home security monitoring company. It’s also possible to set alarms so that you are instantly notified of an intrusion. Alarms designed for windows typically have on and off switches, although some more advanced designs may involve keying in a code to turn them off. One very convenient option for alarms is remote access, so you can turn them on or off with a remote control. When choosing window alarms, consider how they may be of value in your home in addition to their primary function of keeping burglars out. For example, if you have small children at home, window alarms that emit a noise can warn you of potential danger. It takes just seconds for a child to climb or fall out of a window. Window alarms can also help ensure loved ones with dementia stay safely inside. Although you may wish to invest in window alarms as part of a home security system you purchase through a professional company, it isn’t necessary to do so to be safe. You can easily purchase your own window alarms very affordably either in home goods stores or online. Small window alarms often attach with double-sided tape. It’s then simply a matter of remembering to turn them on and replace the batteries as needed. Window alarms provide instant protection against burglars, and they also make you more aware of entrance points into your home. Once you’ve installed window alarms, you’ll need to turn them off to open your windows. Most people find they’re much less likely to forget to close windows after airing out their homes when they’ve invested in and started using window alarms.
