Firewall is a tool to achieve security policy (security policy). While the security policy, based on the balance between the facilities provided security. More stringent security policy, a more complex service configuration information or fewer devices available on the network. On the contrary, more and more facilities are available or in such a simple configuration application, more easily and people deal with ‘gossip’ into the system from outside Lai (a weak safety policy of the Zhijie results).

This article will attempt to look at some common security policies, a network connection to the Internet.

Firewall

Firewall is usually used to refer to a component or network component, which is used to restrict internal network between the two networks and, more specifically access to the Internet global network set up a term. Firewall has several tasks:

* The first is: to be able to achieve in the network (site security policy security policy). If some behavior is not allowed to this policy, then the firewall must ensure that all the efforts, said the operation failed or failure. Therefore, all the networks (not authorized) unauthorized access will be denied.
* Implementation of the filter: to require all traffic to pass through the issuance and use of all information in the course of the firewall service. In this case, the data packet traffic from / to the firewall, select based on IP address, port number, or direction, adjust the security policy.
* Firewall should be able to record / record suspicious events, and inform against all attempts to penetrate security policy administrator.

Planning and network firewall

Plan a firewall system on the network, what is closely related to whether the facilities will be provided to the user, what level of risk, safety level is acceptable, and how much time, money and expertise available (technical and economic factors). Firewalls usually include (also known as the screen or suffocation) and gateway (the door) filters. Filtering to restrict access, narrow channels, or block certain traffic classes. Place access restrictions, it will reduce the network to function. In order to maintain in an environment with a firewall, in general, the network communication function in two ways:

* First, if we imagine a network for protecting fortress is that communication can occur through the fortress of exit doors. This method is known as packet filtering, and filter not only for refusing to use the channel or channel flow is large enough security risks, while still allowing the canal to other traffic.
* The second method, using the agent system, each communication took place between the two networks must pass operators in this case, the proxy server. Such as Telnet and SMTP (Simple Mail Transfer Protocol some agreements), will be more effective with evaluation data packet (packet filtering), treatment, while others, such as FTP (File Transfer Protocol), Archie, Gopher, and HTTP (Hypertext Transfer Protocol ) will be more effective agents for processing. Most firewalls use these technologies (packet filtering and proxy combined).

Spyware Categories

There are several categories of spyware, namely:

1. Trojan / Backdoor

2. Adware

3. Keylogger

4. DDoS agents (zombies)

5. Sniffer, password cracking

6. Browser Helper Object

7. Kazaa’s P2P example.

8. Rats – Remote Access Tools / trojan.

If we see a duplication of the anti-virus solution, the part of the Trojan. Anti-virus solution to detect the existence of a common Trojan horse in our system. But for other categories, such as adware, P2P networks, hacking tools, the general anti-virus detection does not enter this category.

So why tools such as sniffer into spyware? There is a reason behind it. As we know, sniffing tool, there are two aspects, good or useful for the administrator side.
Sniffer can be used by administrators to do a ‘trace’ or analysis package in their network.Network bandwidth capacity of the load utility that also use sniffer technology. Intrusion detection tool – Network intrusion detection systems based on use of sniffer technology to a network intrusion detection.

But on the other side of the original sniffer can be used for that purpose is not a good example for the olfactory user name and password to the network. Therefore, when the existing verification system does not use the encrypted password and user ID, or the form of ‘plain text’, then the sniffer can easily see the user names and passwords.

In addition, there are types of spyware, people are pleased to install it in the P2P – peer to peer software Kazaa example – P2P file sharing is very popular. Kazaa’s with a lot of adware – software ads – because there they get the profits. This category includes the ‘user awareness of installation’ means a user to trigger installation of their own making, or through an embedded device, for example, when downloading or surfing the Internet.

POP E-mail
E-mail is the same type of e-mail notification you received from your ISP (for those who connect to the Internet for home or office).

Benefits:
The main advantage of POP e-mail is the ability to read offline (can not connect to the internet).To check your e-mail, you need to connect to your POP mail server, and then download all the messages. After, you can disconnect from the Internet and read e-mail. When you are ready to answer, you can connect to the Internet, and then press send. To do this you must use the mail client program such as Eudora or Outlook Express.

Shortcomings
The lack of POP e-mail is that you can not view e-mail anywhere.

Web-based e-mail
Recommend this type offered by the e-mail sites such as Yahoo, Hotmail’s BolehMail, LoveMail so.

Benefits
You can check your e-mail from anywhere and any browser.

Shortcomings
The main disadvantage is the web-based e-mail to check your e-mail should always be connected to the Internet. For those who only received dozens of e-mail or so not sure. But for those who receive dozens or even hundreds of e-mail or e-mail will be felt, especially in terms of less than costs (increased costs, need not always be connected to the internet).

E-mail forwarding
Recommend this type seem to benefit those who have not yet found a suitable e-mail service alias for each e-mail. In principle, this is an e-mail forwarding services will forward an e-mail messages sent to your email account to another.

Benefits
You can hide your e-mail address is real. You do not have to tell you that a new e-mail (if you have frequently exchanged e-mail). You give a forwarding email address.

Shortcomings
Because it is as an intermediary, the message will take longer time to where you are.

Google the so-called optical fiber testing, to support national broadband plan from the Federal Communications Commission. Google offers himself as a candidate for a competitive price of service, millions of people. Google’s goal to make fiber-optic network in order to help access to the Internet faster and better for everyone. Google explained that it had tested a new way to build fiber-optic network, and operates a network of “open” to provide users with a variety of service provider choice.

However, the development of fiber-optic network news do not think Google is bad news, for many Internet service providers, who have a long cooperation with Google. Although Google is also with the ISP network, but Internet service providers such as AT & T also mengkompalin Google’s properties, such as YouTube should pay more of the goods on the ISP network.

Basic search is a search function, is common, when we use the direct access to google.com.

Advanced Search provides many options for a good search capabilities of basic services, file format, we wish to search, language, region, and so on.
Search function is still very much a matter of fact, we can use, but not in the Advanced Search menu option. In other words, we have to query the search form directly in the basic search.Now, the game operator’s query and search, in fact will be discussed in this article.

Basic search function

1. And: to find information contains the word you’re looking for. You can use one of the following three options: jepara carving carving carving + and jepara jepara

2. Or: search for information, with one or two words. You can use one of the following two options: to know or to know Tempe | Tempe

3. Phrase: Looking for information containing the search phrase using the symbol “.” For example: “software”

4. Can not: the search results contain the word before, not behind the minus sign (-). The following example will find the information that contain the word fish, but not fish. Fish Fish

5. Alias (~): to find words and their synonyms, sinonimnya. The following example will bring results: vehicle (car) and synonyms sinonimnya. ~ Car

6. ASTERIK (*): replace the word character. From the following example, the results can be obtained: spicy grilled chicken, spicy fried chicken, cooked spicy chicken wings, spicy chicken, etc. *

7. Landmark points (.): Character replace the letters, numbers and single characters. From the following example, the results can be: coffee, cook, rate, etc. ko.i

8. Case-insensitive: Google search on the needs of capital, rather than the capital the same thing. Therefore, the Luomisate Wawa horno, horno Luomisate Wawa, or Luomisate Wawa horno will bring the same results

9. Fault words: Google ignores keywords in the form of a single character, the following text: 1, about one, and is as, B number, from how I am in, it, and, or, so, um, right, are we going to , when, where, among them. If we still want to look for these words, you can use the + character in front of the search term (example: Star Wars Episode + I), it can be with his phrases (example: “Star Wars”)

10. I’m Feeling Lucky: I want us to go directly to the first results of our inquiry

Continue to search function

1. Definition: Find the definition of terms. From the following example, the results obtained in a variety of definitions of e-learning, from the definition of a variety of sources: e-learning

2. Cache: Display Google site has been indexed, even if it is no longer active. The following example will generate a word search sites PHP ilmukomputer.com in Google’s index. Cache: ilmukomputer.com PHP’s

3. Link: Display a list of links to a site. The following example will display a list of links leading to ilmukomputer.com sites: ilmukomputer.com

4. Related: Displays a list of similar sites, similar to a relationship or related websites: romisatriawahono.net

5. Information: displays information website for information on Google: romisatriawahono.net

6. Web site: displays a special search site specified on Java Web site: ilmukomputer.com

7. File Type: Search results are displayed in the form of the type (extension) of the specific file.The file type can be found: the document, xls, RTF format, Swiss francs, polystyrene, LWP, and resources to learn how to operate, PPT, PDF format, MDB’s, txt files, and so on. The following example will appear in the search results PDF file, which contains the keyword software engineering software engineering file type: pdf

8. allintitle: the display all the search words in the title page. The following example will produce Java programming in the title of the page. allintitle can not be combined with the operator (syntax) other. Intitle for this purpose. allintitle: The Java Programming

9. Intitle: Display a word search of the title page. The following example will produce a page in the Java title and content pages containing the text of the Enterprise intitle: Enterprise Java

10. Allinurl: Show all search words web site. The following example will generate a list of URLs containing the word Java and programming. allinurl can not be combined with the operator (syntax) other. In use, inurl used for this purpose. allinurl: Java Programming

11. Inurl: displays a search word web site. The following example will generate a list of URLs containing the word Java and content of the page contains the text of the enterprise inurl: Java Enterprise

Search, we will be more effective if we tried to bring some good business on the basic search functions. For example, we want to find PDF files http://www.pdii.lipi.go.id/ site. Therefore, we will combine the two operators: file type: pdf site: www.pdii.lipi.go.id

What makes Chrome so fast? It turned out that the additional speed of access to this new browser from another computer. Chrome is the main engine WebKit, and an HTML rendering library. This machine is based on Apple’s Safari browser. Project rendering engine Web site displayed in the browser in the establishment of such a page with the HTML language. WebKit is also applicable to mobile phones is relatively very slow, in the production process. As the program has adopted a streamlined and optimized memory load, providing a faster speed. The Internet is not only to build HTML, but there are other factors, such as JavaScript.

With the Web-based applications, such as Google Docs, the browser and run, the entire plan will require substantial resources. Energy needs come from Google’s V8’s JavaScript engine, to develop their own pace and optimization of a certain trick. Engine provides a class, will be hidden objekobjek with a group. If the object is required to access faster than using the usual techniques. Memory management on the V8 engine has earned enough to save time. Since direct instruction in the machine code, and directly handled by the CPU. Each of these processes a problem, just to save time in milliseconds. However, when run 10000 times, increasing the speed of access to an important.

In addition, Chrome is a programming genius. When a browser to write data to the hard disk (for example, in the cache), the browser will create a separate process. In this way, a slow hard drive will not affect the speed of the browser. Chrome also offers a new thing in the world browser, that is, prefetch the DNS. Work in the background, this feature is ongoing transformation of connected IP addresses to access a particular site. So, when I click on the link, Chrome will save time and address of the DNS server in the search.

Although the survey results, he decided to wait for the central office the same day and take kebijakaan the company, they will be chaos in the hearts of generation … is to try to pekerjaa whether accsess affordable wireless broadband services in this forest area, I do sebingsal ….

But now he berkembangan wireless technology and broadband access nirekabel experienced things, just staff have begun to address its WiMAX technology. WiMAX Let us recall that it is little by little, at least we know the technology broadand of WiFi Internet access. Now the wireless nature of the nirekable to the above services

Acronym for or on behalf of WiMAX technology, is the world’s natural MICROWIVA interoperability ACCSES. This means that the evolution of WiMAX is a broadband wireless technology (BWA) technology, broadband wireless access, if it is still proprietsry (some), which is a broadband wireless access communications equipment provider, or rely on the use the same manufacturer.

With the WiMAX technology, with the open standards nature of meaning types of equipment, communications equipment, WiMAX suppliers / manufacturers of different responses, for example, equipment suppliers / manufacturers and suppliers / manufacturers B can still dilakaukan (propretarsy not )….

Before you continue, Yu. Du Lu we have discussed the development of wireless technology, the first time. A start is the first radio link, and then expand menjdai infrared, infrared capabilities, feel less capable, which is the Bluetooth technology (IEEE.802.15) later developed a more Bluetooth wireless technology, you do not know the technology, Wi - Fi rich ‘mobile phone or laptop, in the conditions of Wi – Fi kerenya called IEEE.802.11.

Then through the Wi – Fi technology, rather gandrungi, and to strengthen the wireless efektibilitas later evolved into or IEEE.802.16 WiMAX technology, so the order of wireless broadband technology, the first one to change the infrared wireless connection from the gel, and then turned into Bluetooth technology, from Bluetooth evolosi of Wi – Fi, WiMAX changes again …….

WiMAX or more well-known terms IEEE.802.16 This means that in merupakah yes IEEE.802.16 standard protocol nirekabel network created by the U.S. Institute of Electrical and Electronics Engineers (IEEE), the United States. Standard agreement is made in Europe the standard Eropuean Telecomunications Institute (ETSI). WiMAX wireless Metropolitan Area Network, including coverage in its category for more than 50 KM.WIMAX 1-generation wireless technology, 4 or more information, please margin 4G.utuk the right of appeal to appeal YG wireless technology already exists ….

WiMAX wireless broadband accsess labor sight (LOS) and non-Mbps, Los Angeles, 70 mbps of sebesar134

Los Angeles is defined as electromagnetic waves directly to the rough, which will optimize the gel if the answer roads in the area by the non-declared long-term resistance Fresnel Zone 1 (Expressway). Essentially there are two additional reply to WiMAX, towers, each tower tsbt see each other face to face with each other so that the signal coverage area passes reply ..

Of non-Los Angeles (non line of sight) to the electromagnetic waves in a straight line, but was blocked at the obstacles (buildings, hills), in order to receive the signal in the distal (tower) in the form of direct waves and reflected waves of non-Los Angeles bayangin 70 Mbps to say what the Reuters more …

Comparison of WiMAX and other wireless technology and network technology (DSL), namely:

50 km 1.Coverage the highest, and in the presence of a significant contribution to the wireless metropolitan area network, which is what waireless text Metropolise Accsess networks in large cities, Jakarta, Surabaya and so on.

2. Installation fee is quite cheap, the economy, because it does not have enough cable time-consuming and complex permission to dig.

3.Layanannya for Registration (customers) are able to respond or not Los Angeles, Los Angeles,

Comparison of WiMAX (4G technology) and 3G

4. Bandwide its spectrum cheap 1000 times / Hz compared to the third generation of

5. A faster data transfer rates than 3G

6. WiMax is a technology solutions, application requirements bandwide that big, you can use the services of data, voice and video synchronization

7. Service than the 3G phones nomadic reply mobiltity (mobile)

8. More economical, because the equipment is WiMAX cheap mensuport

As this is the other people who enjoy the networking services, and served as network marketing, browsing is an activity, has never escaped my daily life. So many links or websites, I found the site, I hope I have a disability or storage. As long as bookmarks, not enough, who am I like the Internet, in the virtual world every second to find new things. Especially if I only bookmark a personal computer (PC). When I had to change to another PC, I will be lost or difficult to access the link, my bookmarks. So, how to solve? Stored in a laptop? No. .. not all the workers who use the Internet access, a laptop computer? What then? Do we want to record in a book? Of course not very practical.

To this end, I have a very telling prompted to save, hundreds or even thousands of links, you feel relaxed. Just copy and paste your favorite link and save it, then you can easily re-open it at any time, because you need.
1. Open http://vibizhope.com, vibizhope is an online bookmark service, you can store your favorite links. Enough to register for free (like Facebook account), you can simply enter some data, such as name and email address, you can immediately use this service.
2. If you do not understand how it work, I am following this tutorial vibizhope use, you can access tutorials on the use of vibizhope: http:// Contact http://ictfiles.com/tutorial/2009/11/19/personal_bookmark_online_vibizhope or they can be directly use of tutorial uses Web vibizhope http://vibizhope.com
3. In addition to saving favorite links, vibizhope also offers online credit card facilities and the agenda online. These online cards can be used to store, in other words card to back up your partner’s name, to avoid four scattered or lost, you can easily find it when you need.

If the material or article in Facebook may cause interference or insult or illegal activities, it has become a Facebook account for elimination of these dangerous policies. All of the social networking sites memoliki policies in order to eliminate material that can be caused by stress or harassment. Even the robber class fish, 罗伊博德莱 (28) detective who has been booed for 18 months, and said he could not be caught, but in the end he was arrested and sentenced to imprisonment for 3.5 years.

“We recognize that the issue of prisoners and Facebook accounts used to make pressure on the victim’s family and their friends, and we say that Facebook will not accept inappropriate content active configuration, who also reached a Facebook site created at. “Straw explained.

This will certainly lead to a breach of the printing industry. Newspapers, magazines, tabloids, journals, all the printing down, down one after another. They like to die is not hiduppun reluctantly. Print print newspapers and magazines will be destroyed, there is no good. All the signs appear in front of the eyes, through the presence on the Internet. For example, you can see a newspaper in the country, Uncle Sam (American Red) fell, one after a bankruptcy. In fact, many of them who is more than a century. One of the best to do this because their main source of income (advertising) is falling. 1 Who are you? Online Course.

In the future to determine almost all the world’s population who live in cities will be connected via the Internet. It’s a form of the world, through the portable computer equipment, such as notebook computers are now possible, it can be anywhere. Anything you can connect to the Internet, or even the toilet, but the. We can communicate with anyone face to face, and here with the broker’s notebook computer screen. Everyone can learn also what is happening in the world any part of the world in a few seconds, without waiting for the next day’s newspapers.Everyone can let the world know that he had just experienced, seen and heard (jurnalistic citizens), without having to know how to do his job journalists.

Finally, people will always wish her the desired information satisfaction. Sooner or later, the arrival of this day and age. Community will no longer need to wait too long to be able to understand what is happening in the world. All you can run just a few clicks of a few seconds things. Welcome to the digital age!