Sunday, August 1, 2010

computer systems

First, the computer's settings
Close the "File and Print Sharing"
File and print sharing should be a very useful feature, but do not need it, is also very good hacking vulnerabilities. Therefore, there is no need to "File and Print Sharing" situation, we can turn it off. Right-click with the mouse "network neighbors", select "Properties", Dell inspiron mini 9 battery then click "File and Print Sharing" button, will pop up the "File and Print Sharing" dialog box in two hook can be removed . Although the "File and Print Sharing" turned off, but it does not ensure safety, but also to modify the registry, it is prohibited to change the "File and Print Sharing."
Open the Registry Editor, select the "HKEY_CURRENT_USER \ Software \ Microsoft \ Windows \ CurrentVersion \ Policies \ NetWork" primary key, primary key in the new DWORD under the key type, key named "NoFileSharingControl", key set to "1" the prohibition of this function to achieve the ban to change the "File and Print Sharing" purpose; key to "0" to allow this feature. In this way, "Network Neighborhood" and "Properties" dialog box "File and Print Sharing" to cease to exist.
Disable the Guest account
There are many invasions were further obtained through this account administrator password or permissions. If you do not want to put your computer to others as toys, that is a good ban. Open the Control Panel, double-click "Users and Passwords", click "Advanced" tab, then click the "Advanced" button, pop-up Local Users and Groups window. Guest account in the top right-click, select Properties, in the "General" page select "Account is disabled." In addition, the Administrator account was renamed to prevent hackers know the administrator account, which will in large part to ensure computer security.

Prohibit the establishment of air link
In the case of default, any user can connect to the server through the air connection, enumerate account and guess your password. Therefore, we must prohibit the establishment of air link. Is to modify the registry: Open the registry "HKEY_LOCAL_MACHINE \ System \ CurrentControlSet \ Control \ LSA", the DWORD value "RestrictAnonymous" The key to "1" can be.

Second, hide IP address
Hackers often use some network technology to detect host information see our main objective is to get the network host's IP address. IP address in network security is a very important concept, if the attacker knows your IP address is equivalent to ready his attack goal, he could be consulted IP Fadong various attacks such as DoS (Denial of Service) attacks , Floop overflow attacks. Hide IP address of the main method is to use a proxy server. Compared with the direct connection to the Internet using a proxy server to help protect Internet users IP address, thereby protecting the Internet security.
The principle of the proxy server is the client (user access to the Internet computer) and remote server (such as the user wants to access a remote WWW server) set up between a "transit point", when a client machine to the remote server requests for services, the proxy server first intercept the user's request, then the service request to the proxy server a remote server in order to achieve client and the link between the remote server. Obviously, using a proxy server, other users can only detect the proxy server IP address instead of the user's IP address, which the user IP address, Dell kd476 battery a hidden purpose, to protect the user access security. Free proxy server site there are many, you can own use tools such as proxy hunters to find.

Third, close unnecessary ports
Hackers often scan time of the invasion port of your computer, if you install the port monitor program (such as Netwatch), the monitoring program will have a warning prompt. If you encounter such invasion tool available for less than the port closed.

4, replacement of an administrator account
Administrator account has the highest system privileges, once the account is being used, lead to disastrous consequences. One common means of hacking is trying to get Administrator account's password, so we need to re-configure the Administrator account. The first is set for the Administrator account, a strong complex password, and then we rename the Administrator account, create an Administrator account without administrator privileges to deceive the intruder. In this way, intruders can hardly figure out which account has administrator privileges true, to some extent also reduced the risk.

Fifth, stop the invasion of Guest account
Guest account, the so-called guest account, it can access the computer, but limited. Unfortunately, Guest also opened the door for the hacker! Online There are many articles have introduced the use of Guest Users get administrator rights and for this reason, the eradication of Guest account on the system invasion.

Disable or delete the Guest account is a complete best way, but certain essential 在 use to Guest of account of, in respect require alternative ways to do defense work Le. First, set up to give a strong password Guest, and then set the Guest account in detail the physical access path. For example, if you want to prevent Guest users can access the tool folder, you can right-click the folder, the pop-up menu, select "Security" tab, from which you can access this folder to see all the users. Remove all users other than administrators can. Or permission for the corresponding user to set permissions, for example, only "List Folder Contents" and "read" and so on, so a lot safer.
6, install the necessary security software
We should also be installed on your computer and use the necessary Hacking Software, antivirus software and firewalls are essential. Open them in Internet time, so even if a hacker attack on our security is guaranteed.
7, against Trojans
Trojans are implanted into the computer will steal useful information, so we have to prevent the implantation of Trojan horses, hackers, commonly used methods are:
● In the download file into your first new folder, and then anti-virus software to detect, to play the role of prevention in advance.

● In "Start" → "program" → "Start" or "Start" → "program" → "Startup" option in the operation to see if there is an unknown item, if so, delete. The registry in HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Run All to "Run" as the prefix can delete all suspicious programs.

8, do not return messages from strangers
Some hackers may be posing as some of the formal name of the site, and then compile a high-sounding reason to send a letter asking you to enter your Internet user name and password, if you press the "OK", your account number and password into the hacker mailbox. So Do not return messages from strangers, even if he did not say pleasant, attractive fooled again.
9, do the security settings of IE
Applets ActiveX controls and strong features, but there are also being used by the hidden malicious code in Web pages is often use small programs written in these controls, simply open the web page will be run. So to avoid attacks by malicious web page only to run against these malicious code. IE provides several options to this specific setup steps are: "Tools" → "Internet Options" → "Security" → "Custom Level", it is recommended that you disable ActiveX controls and related options.
Some caution is not always wrong! In addition, the security settings in IE, we can set the Internet, Local Intranet, Trusted Sites, Restricted Sites. However, Microsoft is hidden here, "My Computer" security settings, by modifying the registry to the option open, Dell latitude d400 battery can enable us to deal with ActiveX controls and Applets have more choices, and to generate local computer security greater impact.

The following are specific ways: Open the "Start" menu "Run" in the pop-up "Run" dialog box, type Regedit.exe, open the Registry Editor, click in front of "+" sign in turn expand to: HKEY_CURRE -NT_USER \ Software \ Microsoft \ Windows \ CurrentVersion \ InternetSettings \ Zones \ 0, in the right window, find the DWORD value of "Flags", the default key is 21 hexadecimal (decimal 33), double-click the "Flags", the pop-up The dialog will change its key value "1" to close the Registry Editor.

Without restarting the computer, re-open IE, once again click on "Tools → Internet Options → Security" tab, you'll see one more "My Computer" icon, where you can set its security level. The level of security it set higher, so to prevent more closely.

Final recommendations to patch their systems, Microsoft is still very useful to those patches.

Network Administration

In any organization that has an IT environment with multiple computers that are connected, there is a need for network administration. In general, the job of a network administrator involves supporting the hardware and software that are associated with the network of the IT environment. However, the functions of network administration differ depending on the requirement of the business. It may include network design and implementation, network security, connectivity to servers, working with routers, or troubleshooting at individual workstation. However, the basic function remains the same. Seattle network administration offers a practical solution to the IT environment of different types of organizations where computer network is the core of the system.

Function of Seattle Network Administration

Network administration is crucial to keep the network functioning of an IT environment at the optimal level. Depending on the complexity of the network the duties of the network administrator can vary tremendously. Apart from maintaining the LAN and WAN of the network, the functions include email administration, backup and maintenance of server, maintenance of user logon and accessibility, etc. some service providers also offer the service of protecting internal users from outside threats such as viruses, spyware and hackers.

Why Organizations Need Network Administration

For a perfect and smooth running of an IT environment, it is essential that the computers connected with each other can communicate with each other as well as communicate with the server and printers of the network. Network administration makes sure that these things work well along with the Internet services. Besides, the maintenance of VPNs, FTP servers and gateways also comes under the service of Seattle network administration.

There is also a significance of hiring network administration. Network administrator decides the law and order of the network which has a greater significance for the company. This provides the users a complete idea about the policies of the company.

What are the Benefits of Hiring Seattle Network Administration

Although many companies have their in-house network administrators to maintain their IT network system, outsourcing the job to a Seattle network administration service provider has its own benefits. First of all, you can have a skilled technician to handle the important and crucial function of network services in your organization. Again, hiring the services means you can have an experienced person maintaining your IT network who might have worked with advance technologies that can be of added advantage for your organization. Also, by hiring such services you don't have to worry about looking for a full time employee who can meet your requirements and deliver satisfactory services.

There are different types of network administration services. Some are designed to only the entry-level jobs, while others are to perform the most complicated tasks. But, each type of service has its own importance and the organizations with multiple computers in network require such services for a smoother working environment. Seattle network administration services are crucial to maintain servers and computers in network with a wide range of services such as maintenance of server, router and computer security, connectivity, network design, etc.

Computer Support

Computer related technical problems are very common. But when a problem occurs in a business organization where computers are the important aspect of business, it can cause a lot of trouble to the entire firm. As increasing number of business organizations are introducing IT environment to their businesses, computer support systems are becoming more essential services for the organizations. From smaller requirements like regular maintenance of the computers to various major problem like system crash and virus attacks, every time u need a professional for proper running of computers and smooth functioning of the entire organization. Seattle computer support services are one of the feasible solutions for the organizations that work with computer environment and need support services for their basic and specific needs.

Computer support is a kind of service that deals with various computer related problems. Some of the organizations may not feel the requirement of such services for their companies for they may be conscious of their budget. However, there are many other strong reasons that for which you should consider the need of a support system for your company.

Instant Services:
It's not difficult to understand the urgency of solving the computer related problems when your business is mostly dependent on the IT environment of your organization. If you outsource your computer support services to a Seattle computer support, you will be assured of getting quick response from them as this is their core business. Sometimes, they can provide you remote services by logging in to your network and fixing the software related problems in real time.

Reliable Services:
There are many service providers whose prime business is to provide solutions to computer related problems in bigger and smaller firms. The competition in the industry is so tough that a small mistake can cause a great loss to their business. Hence, the Seattle computer support services vie for providing the best service to their client so that they can have returning customers. With their services you will be assured of getting quick response time.

Expert Services:
You may be confused of the expertise of the technicians provided by the service provider to take care of your IT environment. But, you must remember that the core business of the Seattle computer support service provider is to assure you a better and smooth running IT environment for your business. Hence, they will try to appoint expert and qualified technicians to meet their clients' requirements and retain their clients for long.

Cost-Effective Services:
As smaller firms are more concern about their budgets, hiring Seattle computer support services can be a more affordable solution for their problems related to IT environment of their organizations. It is the best alternative to hiring a full-time technician for the company. These days, numbers of large companies also have realized that third party solution for computer support is a better option.

The Seattle computer support solutions are available in different types of service packages. The services providers offer online services or onsite services depending on the clients' need. However, it is important to carefully select the service provider and service packages for your organization.