





The Internet is a vast network of computers all over the world.In fact,the internet is actually a collection of smaller networks called local area networks or LANs.LANs connect computers across a very small geographical region,usually not more than a few kilometers wide.A network within a university would be a good example.In a LAN,all computers have access to a common channel of communication,usually a set of wires or a cable.Any computer that wishes to communicate with some other computer,uses this common cable.The main communication channel itself is independent of the computers that use it.This ensures that even if some computers malfunction,the rest of the LAN continues to operate.This also ensures that the speed of the LAN does not depend on the speeds of individual computers.Traditional LANs have speeds of 10 to 100 megabits per second or Mbps.Newer LANs are capable of speeds if hundreds of Mbps.
The Internet is somewhat similar to a LAN in the sense that it too is just a common communication channel independent of the communicating computers.but in addition to using simple cables,communication is carried out over conventional communication media like telephone networks and satellites.Another difference between a LAN and the internet that the internet uses special computers called is routers to direct the flow of information through its elaborate network.To send information to its destination using the most suitable path,routers use complex routing schemes called routing algorithms.Another very important role played by routers is the integration of different LANs.
The term 'internet' is derived from the more general term inter-network.To differentiate between the two,let us state that while an inter-network is a theoretical concept referring to a vast network of computers,the internet is its practical application; a vast network that exists in our times to link strategic organisations and private individuals all over the world.
The most popular way a distant or remote computer is connected to a LAN is by the use of conventional telephone lines.The distant computer connects to the telephone network using a special device called a modem.There must be a modem connected to the remote computer as well to the LAN.
The modem is required for a special reason.The reason is that telephone lines do not transmit information in the format used by the computer.Telephone lines have their own format to transmit information.So a device is needed which can translate between the format as understood by the computer and the one understood by the telephone lines.Such a device is the modem.Modems at both the ends of the network are capable of both modulation and demodulation,and thus,two-way communication is possible.In fact the term modem is short for MOdulator-DEModulator.
thus,using modems,computers that are not in the proximity of the LAN,may be effectively connected to it.Hence,because they can connect to a LAN,computers may connect to the internet if the LAN itself is connected to one of the internet's routers.
The Internet is by definition a meta-network, a constantly changing collection of thousands of individual networks intercommunicating with a common protocol.
The Internet's architecture is described in its name, a short from of the compound word "inter-networking". This architecture is based in the very specification of the standard TCP/IP protocol, designed to connect any two networks which may be very different in internal hardware, software, and technical design. Once two networks are interconnected, communication with TCP/IP is enabled end-to-end, so that any node on the Internet has the near magical ability to communicate with any other no matter where they are. This openness of design has enabled the Internet architecture to grow to a global scale.
In practice, the Internet technical architecture looks a bit like a multi-dimensional river system, with small tributaries feeding medium-sized streams feeding large rivers. For example, an individual's access to the Internet is often from home over a modem to a local Internet service provider who connects to a regional network connected to a national network. At the office, a desktop computer might be connected to a local area network with a company connection to a corporate Intranet connected to several national Internet service providers. In general, small local Internet service providers connect to medium-sized regional networks which connect to large national networks, which then connect to very large bandwidth networks on the Internet backbone. Most Internet service providers have several redundant network cross-connections to other providers in order to ensure continuous availability.
The companies running the Internet backbone operate very high bandwidth networks relied on by governments, corporations, large organizations, and other Internet service providers. Their technical infrastructure often includes global connections through underwater cables and satellite links to enable communication between countries and continents. As always, a larger scale introduces new phenomena: the number of packets flowing through the switches on the backbone is so large that it exhibits the kind of complex non-linear patterns usually found in natural, analog systems like the flow of water or development of the rings of Saturn.
Each communication packet goes up the hierarchy of Internet networks as far as necessary to get to its destination network where local routing takes over to deliver it to the addressee. In the same way, each level in the hierarchy pays the next level for the bandwidth they use, and then the large backbone companies settle up with each other. Bandwidth is priced by large Internet service providers by several methods, such as at a fixed rate for constant availability of a certain number of megabits per second, or by a variety of use methods that amount to a cost per gigabyte. Due to economies of scale and efficiencies in management, bandwidth cost drops dramatically at the higher levels of the architecture.
There are many possible causes. Here are a few tips for resolving the problem.
Overview and general information
What is an Internet Protocol (IP) address?
Computers use IP addresses to locate and talk to each other on the Internet, much the same way people use phone numbers to call someone, street addresses for sending mail, and e-mail addresses to send electronic messages to a specific person. There are two kinds of IP addresses: static and dynamic.
Why would I need a static IP address?
You may want to consider a static IP address if you:
Do I need a static IP address to have my own web site?
Not necessarily. However, if you store and run your web site using your computer as a server, you will need static IP addresses.
What are the advantages and disadvantages of having only a single static IP address?
Advantages:
A single static IP address uses Network Address Translation (NAT), and It is used for:
Disadvantages:
Single static IP's do not provide the ability to assign a gateway address or assign a public IP address to devices on your internal network.
Why would I need multiple static IP addresses (referred to as a "block")?
If you need the ability to assign a gateway address or assign a public IP address to devices on the internal network, you will need a block of static IP addresses.
What is ARIN?
ARIN (American Registry for Internet Numbers) is a nonprofit corporation that manages the distribution of IP addresses for most of North America.
Why do I have to register my Static IP's?
Static IP addresses require registration for several reasons. Two of the most important reasons are 1) to avoid duplicate distribution, and 2) to ensure that traffic intended for a static IP reaches the correct destination.
Who has access to these numbers and how will they be used?
Static IP addresses, like phone numbers and physical addresses are largely common knowledge. Static IP addresses are used to ensure that data intended for a specific machine can consistently reach that machine, which generally is not possible with dynamic IPs as they can change over time.
How many static IP addresses can I lease per high-speed Internet telephone line?
You can lease a single static IP address from a block of several contiguous IP addresses. Each high-speed Internet telephone line can only have one block leased to it, however there are several choices of block sizes available.
| # of IP Addresses | Assignable |
| N/A | 1* |
| 8 | 5 |
| 16 | 13 |
| 32 | 29 |
| 64 | 61 |
What happens to my IP addresses if I upgrade or downgrade block size?
If you want to increase or decrease your static IP block size, you will be assigned new IP addresses (you can't keep any existing IP addresses). You will then need to make the necessary configuration changes in your equipment to accommodate the new IP address assignments.
What is the difference between how many static IP addresses I lease and how many can be assigned to individual computers on the network?
When you lease a block of IP addresses, three addresses are reserved for network functions. The others are user-assignable to individual computers or servers.


ADSL Broadband via Landline (telephone line)
This is is the traditional method of obtaining a broadband connection.Some Peakweb ADSL services have NO download limits. Unlike many providers, Peakweb does not cut off your service when your limit is reached, instead it slows down to 64kbits/s which is still faster than dial up. Alternatively you may purchase additional GB to keep you going till your next period.
Requirements
Your local telephone exchange must be "broadband" enabled
You must have an analogue telephone line (ie not digital / ISDN)
if you have a digital line you will need a new analogue line installed or you will need to convert your ISDN line back to analogue.
Benefits
High speed web surfing and email collection
Accessible from the internet (VPN in) with fixed IP address
Surf on the web and talk on the phone at the same time
Enables free or low cost telephone calls with VOIP
Peakweb supply broadband to both businesses and home users
Electronic mail, often abbreviated to e-mail, email, or originally eMail, is a store_and_forward method of writing, sending, receiving and saving messages over electronic communication systems. The term "e-mail" (as a noun or verb) applies to the Internet e-mail system based on the simple Mail Transfer Protocol, to network systems based on other protocols and to various mainframe,computer or internet by a particular systems vendor, or on the same protocols used on public networks.
Origin
E-mail predates the inception of the Internet, and was in fact a crucial tool in creating the Internet.
MIT first demonstrated the Compatible Time-sharing System (CTSS) in 1961.It allowed multiple users to log into the IBM 7094 from remote dial-up terminals, and to store files online on disk. This new ability encouraged users to share information in new ways. E-mail started in 1965 as a way for multiple users of a time-sharing mainframe computer to communicate. Although the exact history is murky, among the first systems to have such a facility were SCD's Q32and MIT's CTSS.
E-mail was quickly extended to become network e-mail, allowing users to pass messages between different computers by at least 1966 (it is possible that the SAGE system had something similar some time before).
The ARPANET computer network made a large contribution to the development of e-mail. There is one report that indicates experimental inter-system e-mail transfers began shortly after its creation in 1969. Ray Tomlinson initiated the use of the @ sign to separate the names of the user and their machine in 1971. The ARPANET significantly increased the popularity of e-mail, and it became the killer app of the ARPANET.
The diagram above shows a typical sequence of events that takes place when Alice composes a message using her mail user agent (MUA). She types in, or selects from an address book, the e-mail address of her correspondent. She hits the "send" button.
This sequence of events applies to the majority of e-mail users. However, there are many alternative possibilities and complications to the e-mail system:
It used to be the case that many MTAs would accept messages for any recipient on the Internet and do their best to deliver them. Such MTAs are called open mail relays. This was important in the early days of the Internet when network connections were unreliable. If an MTA couldn't reach the destination, it could at least deliver it to a relay that was closer to the destination. The relay would have a better chance of delivering the message at a later time. However, this mechanism proved to be exploitable by people sending unsolicited bulk e-mail and as a consequence very few modern MTAs are open mail relays, and many MTAs will not accept messages from open mail relays because such messages are very likely to be spam.
Each message has exactly one header, which is structured into fields. Each field has a name and a value. RFC 5322 specifies the precise syntax.
Informally, each line of text in the header that begins with a printable character begins a separate field. The field name starts in the first character of the line and ends before the separator character ":". The separator is then followed by the field value (the "body" of the field). The value is continued onto subsequent lines if those lines have a space or tab as their first character. Field names and values are restricted to 7-bit ASII characters. Non-ASCII values may be represented using MIME encoded words.
Internet fax
It uses the internet to receive and send faxes.
Traditional faxing involves sending a scanned copy of a document (a facsimile) from one fax machine to another, over the phone network. Internet faxing (or "online faxing") is a general term which can refer to one of several methods of achieving this over the Internet - with a goal of both reduced costs and increased functionality over traditional faxing.
Depending on the specific method/implementation (see below), advantages of using the internet can include
The traditional method for sending faxes over phone lines (PSTN)
A fax machine is an electronic instrument composed of a scanner, a modem, and a printer. It transmits data in the form of pulses via a telephone line to a recipient, usually another fax machine, which then transforms these impulses into images, and prints them on paper.
The traditional method requires a phone line, and only one fax can be connected to send or receive at a time.
Internet Fax
Internet Fax achieves a dramatic reduction in communication costs especially when long faxes are frequently exchanged with overseas or distant offices.
Since there is no telephone connection charge when sending a fax over the Internet, the cost of sending faxes is covered entirely by the fixed line Internet connection fee. The recipient machine must also be compatible with Internet Fax.
Hardcopy is converted to TIFF or PDF data and attached to an e-mail in MIME format. Then, taking advantage of a connection to the office LAN, data is sent via TCP/IP directly to any Internet Fax on the intranet or Internet. Because they make use of TCP/IP, Internet Faxes do not incur long-distance transmission costs and reception is verifiable.
IP Fax and IP Address Relay
IP Fax transmits data over an office intranet from a networked multifunctional device to the IP address of another. Taking advantage of an established LAN / WAN infrastructure, IP Fax eliminates costly connection and transmission fees.
Also, IP Fax does not require a dedicated server or make use of the office mail server. IP Address Relay forwards to a multifunctional device for relaying to a local G3 fax machine.
Computer-based faxing
As modems came into wider use with personal computers, the computer was used to send faxes directly. Instead of first printing a hard copy to be then sent via fax machine, a document could now be printed directly to the software fax, then sent via the computer's modem. Receiving faxes was accomplished similarly.
A disadvantage of receiving faxes this way is that the computer has to be turned on and running the fax software to receive any faxes.
Internet fax servers/gateways
The Internet has enabled development of several other methods of sending and receiving a fax. The more common method is an extension of computer-based faxing, and involves using a fax server gateway to the Internet to convert between faxes and emails. It is often referred to as "fax to mail" or "mail to fax". This technology is more and more replacing the traditional fax machine because it offers the advantage of dispensing with the machine as well as the additional telephone line.
Reception:
A fax is sent via the Public Switched Telephone Network (PSTN) on the fax server, which receives the fax and converts it into PDF or TIFF Tformat, according to the instructions of the user. The fax is then transmitted to the Web server which posts it in the Web interface on the account of the subscriber, who is alerted of the reception by an email containing the fax as an attached file and sometimes by a message on their mobile phone.
Sending:
From his/her computer, in the supplier Web site, the user chooses the document s/he wants to send and the fax number of the recipient. When sending, the document is usually converted to PDF format and sent by the Web server to the fax server, which then transmits it to the recipient fax machine via the Standard Telephone Network. Then the user receives a confirmation that the sending was carried out, in his/her web interface and/or by email.
An Internet fax service allows one to send faxes from a computer via an Internet connection, thanks to a Web interface usually available on the supplier's Web site. This technology has many advantages:
Early email to fax services such as the phone company and Digital chicken were developed in the mid-1990s.
Making phone calls over the Internet (Voice over Internet Protocol, orVOIP ) has become increasingly popular. Compressing fax signals is different from compressing voice signals, so a new standard has been created for this. If the VoIP adapter and gateway are T.38 compliant, most fax machines can simply be plugged into the VoIP adapter instead of a regular phone line.
As with regular faxes, only one fax can be sent or received at a time.
While the needs of computer-to-fax communications are well covered, the simplicity of quickly faxing a handwritten document combined with the advantages of email are not.
"iFax" was designed for fax machines to directly communicate via email. Faxes are sent as e-mail attachments in a TIFF-F format.
A new fax machine (supporting iFax/T.37) is required, as well as a known email address for the sending and receiving machines. This has limited the standard's use, though a system for looking up a fax's email address based on its phone number is under development.
To work with existing fax machines, all iFax machines support standard faxing (requiring a regular phone line). Alternatively, an iFax can be used in conjunction with a fax gateway.
This al Qaeda website image claims responsibility for attacks in Kenya and the United States.The story of the presence of terrorist groups in cyberspace has barely begun to be told. In 1998, around half of the thirty organizations designated as "Foreign Terrorist Organizations" under the U.S. Antiterrorism and Effective Death Penalty Act of 1996 maintained websites; by 2000, virtually all terrorist groups had established their presence on the Internet. Our scan of the Internet in 2003–4 revealed hundreds of websites serving terrorists and their supporters. And yet, despite this growing terrorist presence, when policymakers, journalists, and academics have discussed the combination of terrorism and the Internet, they have focused on the overrated threat posed by cyberterrorism or cyberwarfare (i.e., attacks on computer networks, including those on the Internet) and largely ignored the numerous uses that terrorists make of the Internet every day.
In this report we turn the spotlight on these latter activities, identifying, analyzing, and illustrating ways in which terrorist organizations are exploiting the unique attributes of the Internet. The material presented here is drawn from an ongoing study (now in its sixth year) of the phenomenon, during which we have witnessed a growing and increasingly sophisticated terrorist presence on the World Wide Web. Terrorism on the Internet, as we have discovered, is a very dynamic phenomenon: websites suddenly emerge, frequently modify their formats, and then swiftly disappear—or, in many cases, seem to disappear by changing their online address but retaining much the same content. To locate the terrorists' sites, we have conducted numerous systematic scans of the Internet, feeding an enormous variety of names and terms into search engines, entering chat rooms and forums of supporters and sympathizers, and surveying the links on other organizations' websites to create and update our own lists of sites. This is often a herculean effort, especially because in some cases (e.g., al Qaeda's websites) locations and contents change almost daily.
The report begins by sketching the origins of the Internet, the characteristics of the new medium that make it so attractive to political extremists, the range of terrorist organizations active in cyberspace, and their target audiences. The heart of the report is an analysis of eight different uses that terrorists make of the Internet. These range from conducting psychological warfare to gathering information, from training to fundraising, from propagandizing to recruiting, and from networking to planning and coordinating terrorist acts. In each instance, we offer concrete examples drawn from our own research, from cases reported in the media, and from contacts with Western intelligence organizations. Although the bulk of the report amounts to a strong argument for the political, intelligence, and academic communities to pay much more attention to the dangers posed by terrorists' use of the Internet, the report concludes with a plea to those same communities not to overreact. The Internet may be attractive to political extremists, but it also symbolizes and supports the freedom of thought and expression that helps distinguish democracies from their enemies. Effective counterterrorist campaigns do not require, and may be undermined by, draconian measures to restrict Internet access.

We have identified eight different, albeit sometimes overlapping, ways in which contemporary terrorists use the Internet. Some of these parallel the uses to which everyone puts the Internet—information gathering, for instance. Some resemble the uses made of the medium by traditional political organizations—for example, raising funds and disseminating propaganda. Others, however, are much more unusual and distinctive—for instance, hiding instructions, manuals, and directions in coded messages or encrypted files.
Terrorism has often been conceptualized as a form of psychological warfare, and certainly terrorists have sought to wage such a campaign through the Internet. There are several ways for terrorists to do so. For instance, they can use the Internet to spread disinformation, to deliver threats intended to distill fear and helplessness, and to disseminate horrific images of recent actions, such as the brutal murder of the American journalist Daniel Pearl by his captors, a videotape of which was replayed on several terrorist websites. Terrorists can also launch psychological attacks through cyberterrorism, or, more accurately, through creating the fear of cyberterrorism. "Cyberfear" is generated when concern about what a computer attack could do (for example, bringing down airliners by disabling air traffic control systems, or disrupting national economies by wrecking the computerized systems that regulate stock markets) is amplified until the public believes that an attack will happen. The Internet—an uncensored medium that carries stories, pictures, threats, or messages regardless of their validity or potential impact—is peculiarly well suited to allowing even a small group to amplify its message and exaggerate its importance and the threat it poses.
Al Qaeda combines multimedia propaganda and advanced communication technologies to create a very sophisticated form of psychological warfare. Osama bin Laden and his followers concentrate their propaganda efforts on the Internet, where visitors to al Qaeda's numerous websites and to the sites of sympathetic, aboveground organizations can access prerecorded videotapes and audiotapes, CD-ROMs, DVDs, photographs, and announcements. Despite the massive onslaught it has sustained in recent years—the arrests and deaths of many of its members, the dismantling of its operational bases and training camps in Afghanistan, and the smashing of its bases in the Far East—al Qaeda has been able to conduct an impressive scare campaign. Since September 11, 2001, the organization has festooned its websites with a string of announcements of an impending "large attack" on U.S. targets. These warnings have received considerable media coverage, which has helped to generate a widespread sense of dread and insecurity among audiences throughout the world and especially within the United States.
Interestingly, al Qaeda has consistently claimed on its websites that the destruction of the World Trade Center has inflicted psychological damage, as well as concrete damage, on the U.S. economy. The attacks on the Twin Towers are depicted as an assault on the trademark of the U.S. economy, and evidence of their effectiveness is seen in the weakening of the dollar, the decline of the U.S. stock market after 9/11, and a supposed loss of confidence in the U. S. economy both within the United States and elsewhere. Parallels are drawn with the decline and ultimate demise of the Soviet Union. One of bin Laden's recent publications, posted on the web, declared that "America is in retreat by the Grace of Almighty and economic attrition is continuing up to today. But it needs further blows. The young men need to seek out the nodes of the American economy and strike the enemy's nodes."
The Internet has significantly expanded the opportunities for terrorists to secure publicity. Until the advent of the Internet, terrorists' hopes of winning publicity for their causes and activities depended on attracting the attention of television, radio, or the print media. These traditional media have "selection thresholds" (multistage processes of editorial selection) that terrorists often cannot reach. No such thresholds, of course, exist on the terrorists' own websites. The fact that many terrorists now have direct control over the content of their message offers further opportunities to shape how they are perceived by different target audiences and to manipulate their own image and the image of their enemies.
As noted earlier, most terrorist sites do not celebrate their violent activities. Instead, regardless of the terrorists' agendas, motives, and location, most sites emphasize two issues: the restrictions placed on freedom of expression and the plight of comrades who are now political prisoners. These issues resonate powerfully with their own supporters and are also calculated to elicit sympathy from Western audiences that cherish freedom of expression and frown on measures to silence political opposition. Enemy publics, too, may be targets for these complaints insofar as the terrorists, by emphasizing the antidemocratic nature of the steps taken against them, try to create feelings of unease and shame among their foes. The terrorists' protest at being muzzled, it may be noted, is particularly well suited to the Internet, which for many users is the symbol of free, unfettered, and uncensored communication.
Terrorist sites commonly employ three rhetorical structures, all used to justify their reliance on violence. The first one is the claim that the terrorists have no choice other than to turn to violence. Violence is presented as a necessity foisted upon the weak as the only means with which to respond to an oppressive enemy. While the sites avoid mentioning how the terrorists victimize others, the forceful actions of the governments and regimes that combat the terrorists are heavily emphasized and characterized with terms such as "slaughter," "murder," and "genocide." The terrorist organization is depicted as constantly persecuted, its leaders subject to assassination attempts and its supporters massacred, its freedom of expression curtailed, and its adherents arrested. This tactic, which portrays the organization as small, weak, and hunted down by a strong power or a strong state, turns the terrorists into the underdog.
A second rhetorical structure related to the legitimacy of the use of violence is the demonizing and delegitimization of the enemy. The members of the movement or organization are presented as freedom fighters, forced against their will to use violence because a ruthless enemy is crushing the rights and dignity of their people or group. The enemy of the movement or the organization is the real terrorist, many sites insist: "Our violence is tiny in comparison to his aggression" is a common argument. Terrorist rhetoric tries to shift the responsibility for violence from the terrorist to the adversary, which is accused of displaying its brutality, inhumanity, and immorality.
A third rhetorical device is to make extensive use of the language of nonviolence in an attempt to counter the terrorists' violent image. Although these are violent organizations, many of their sites claim that they seek peaceful solutions, that their ultimate aim is a diplomatic settlement achieved through negotiation and international pressure on a repressive government.
The Internet may be viewed as a vast digital library. The World Wide Web alone offers about a billion pages of information, much of it free—and much of it of interest to terrorist organizations. Terrorists, for instance, can learn from the Internet a wide variety of details about targets such as transportation facilities, nuclear power plants, public buildings, airports, and ports, and even about counterterrorism measures. Dan Verton, in his book Black Ice: The Invisible Threat of Cyberterrorism (2003), explains that "al-Qaeda cells now operate with the assistance of large databases containing details of potential targets in the U.S. They use the Internet to collect intelligence on those targets, especially critical economic nodes, and modern software enables them to study structural weaknesses in facilities as well as predict the cascading failure effect of attacking certain systems." According to Secretary of Defense Donald Rumsfeld, speaking on January 15, 2003, an al Qaeda training manual recovered in Afghanistan tells its readers, "Using public sources openly and without resorting to illegal means, it is possible to gather at least 80 percent of all information required about the enemy."
The website operated by the Muslim Hackers Club (a group that U.S. security agencies believe aims to develop software tools with which to launch cyberattacks) has featured links to U.S. sites that purport to disclose sensitive information such as code names and radio frequencies used by the U.S. Secret Service. The same website offers tutorials in creating and spreading viruses, devising hacking stratagems, sabotaging networks, and developing codes; it also provides links to other militant Islamic and terrorist web addresses. Specific targets that al Qaeda-related websites have discussed include the Centers for Disease Control and Prevention in Atlanta; FedWire, the money-movement clearing system maintained by the Federal Reserve Board; and facilities controlling the flow of information over the Internet. Like many other Internet users, terrorists have access not only to maps and diagrams of potential targets but also to imaging data on those same facilities and networks that may reveal counterterrorist activities at a target site. One captured al Qaeda computer contained engineering and structural features of a dam, which had been downloaded from the Internet and which would enable al Qaeda engineers and planners to simulate catastrophic failures. In other captured computers, U.S. investigators found evidence that al Qaeda operators spent time on sites that offer software and programming instructions for the digital switches that run power, water, transportation, and communications grids. Numerous tools are available to facilitate such data collection, including search engines, e-mail distribution lists, and chat rooms and discussion groups. Many websites offer their own search tools for extracting information from databases on their sites. Word searches of online newspapers and journals can likewise generate information of use to terrorists; some of this information may also be available in the traditional media, but online searching capabilities allow terrorists to capture it anonymously and with very little effort or expense.
Like many other political organizations, terrorist groups use the Internet to raise funds. Al Qaeda, for instance, has always depended heavily on donations, and its global fund-raising network is built upon a foundation of charities, nongovernmental organizations, and other financial institutions that use websites and Internet-based chat rooms and forums. The Sunni extremist group Hizb al-Tahrir uses an integrated web of Internet sites, stretching from Europe to Africa, which asks supporters to assist the effort by giving money and encouraging others to donate to the cause of jihad. Banking information, including the numbers of accounts into which donations can be deposited, is provided on a site based in Germany. The fighters in the Russian breakaway republic of Chechnya have likewise used the Internet to publicize the numbers of bank accounts to which sympathizers can contribute. (One of these Chechen bank accounts is located in Sacramento, California.) The IRA's website contains a page on which visitors can make credit card donations.
Internet user demographics (culled, for instance, from personal information entered in online questionnaires and order forms) allow terrorists to identify users with sympathy for a particular cause or issue. These individuals are then asked to make donations, typically through e-mails sent by a front group (i.e., an organization broadly supportive of the terrorists' aims but operating publicly and legally and usually having no direct ties to the terrorist organization). For instance, money benefiting Hamas has been collected via the website of a Texas-based charity, the Holy Land Foundation for Relief and Development (HLF). The U.S. government seized the assets of HLF in December 2001 because of its ties to Hamas. The U.S. government has also frozen the assets of three seemingly legitimate charities that use the Internet to raise money—the Benevolence International Foundation, the Global Relief Foundation, and the Al-Haramain Foundation—because of evidence that those charities have funneled money to al Qaeda.
In another example, in January 2004, a federal grand jury in Idaho charged a Saudi graduate student with conspiring to help terrorist organizations wage jihad by using the Internet to raise funds, field recruits, and locate prospective U.S. targets—military and civilian—in the Middle East. Sami Omar Hussayen, a doctoral candidate in computer science in a University of Idaho program sponsored—ironically—by the National Security Agency, was accused of creating websites and an e-mail group that disseminated messages from him and two radical clerics in Saudi Arabia that supported jihad.
The Internet can be used not only to solicit donations from sympathizers but also to recruit and mobilize supporters to play a more active role in support of terrorist activities or causes. In addition to seeking converts by using the full panoply of website technologies (audio, digital video, etc.) to enhance the presentation of their message, terrorist organizations capture information about the users who browse their websites. Users who seem most interested in the organization's cause or well suited to carrying out its work are then contacted. Recruiters may also use more interactive Internet technology to roam online chat rooms and cybercafes, looking for receptive members of the public, particularly young people. Electronic bulletin boards and user nets (issue-specific chat rooms and bulletins) can also serve as vehicles for reaching out to potential recruits.
Some would-be recruits, it may be noted, use the Internet to advertise themselves to terrorist organizations. In 1995, as reported by Verton in Black Ice, Ziyad Khalil enrolled as a computer science major at Columbia College in Missouri. He also became a Muslim activist on the campus, developing links to several radical groups and operating a website that supported Hamas. Thanks in large part to his Internet activities, he came to the attention of bin Laden and his lieutenants. Khalil became al Qaeda's procurement officer in the United States, arranging purchases of satellite telephones, computers, and other electronic surveillance technologies and helping bin Laden communicate with his followers and officers.
More typically, however, terrorist organizations go looking for recruits rather than waiting for them to present themselves. The SITE Institute, a Washington, D.C.-based terrorism research group that monitors al Qaeda's Internet communications, has provided chilling details of a high-tech recruitment drive launched in 2003 to recruit fighters to travel to Iraq and attack U.S. and coalition forces there. Potential recruits are bombarded with religious decrees and anti-American propaganda, provided with training manuals on how to be a terrorist, and—as they are led through a maze of secret chat rooms—given specific instructions on how to make the journey to Iraq. In one particularly graphic exchange in a secret al Qaeda chat room in early September 2003 an unknown Islamic fanatic, with the user name "Redemption Is Close," writes, "Brothers, how do I go to Iraq for Jihad? Are there any army camps and is there someone who commands there?" Four days later he gets a reply from "Merciless Terrorist." "Dear Brother, the road is wide open for you—there are many groups, go look for someone you trust, join him, he will be the protector of the Iraqi regions and with the help of Allah you will become one of the Mujahidin." "Redemption Is Close" then presses for more specific information on how he can wage jihad in Iraq. "Merciless Terrorist" sends him a propaganda video and instructs him to download software called Pal Talk, which enables users to speak to each other on the Internet without fear of being monitored.
Many terrorist websites stop short of enlisting recruits for violent action but they do encourage supporters to show their commitment to the cause in other tangible ways. "How can I help the struggle: A few suggestions," runs a heading on the Kahane Lives website; "Action alert: What you can do" is a feature on the Shining Path's website. The power of the Internet to mobilize activists is illustrated by the response to the arrest of Abdullah Ocalan, leader of the Kurdish terrorist group the PKK. When Turkish forces arrested Ocalan, tens of thousands of Kurds around the world responded with demonstrations within a matter of hours—thanks to sympathetic websites urging supporters to protest.
Many terrorist groups, among them Hamas and al Qaeda, have undergone a transformation from strictly hierarchical organizations with designated leaders to affiliations of semi-independent cells that have no single commanding hierarchy. Through the use of the Internet, these loosely interconnected groups are able to maintain contact with one another—and with members of other terrorist groups. In the future, terrorists are increasingly likely to be organized in a more decentralized manner, with arrays of transnational groups linked by the Internet and communicating and coordinating horizontally rather than vertically.
Several reasons explain why modern communication technologies, especially computer-mediated communications, are so useful for terrorists in establishing and maintaining networks. First, new technologies have greatly reduced transmission time, enabling dispersed organizational actors to communicate swiftly and to coordinate effectively. Second, new technologies have significantly reduced the cost of communication. Third, by integrating computing with communications, they have substantially increased the variety and complexity of the information that can be shared.
The Internet connects not only members of the same terrorist organizations but also members of different groups. For instance, dozens of sites exist that express support for terrorism conducted in the name of jihad. These sites and related forums permit terrorists in places such as Chechnya, Palestine, Indonesia, Afghanistan, Turkey, Iraq, Malaysia, the Philippines, and Lebanon to exchange not only ideas and suggestions but also practical information about how to build bombs, establish terror cells, and carry out attacks.
The World Wide Web is home to dozens of sites that provide information on how to build chemical and explosive weapons. Many of these sites post The Terrorist's Handbook and The Anarchist Cookbook, two well-known manuals that offer detailed instructions on how to construct a wide range of bombs. Another manual, The Mujahadeen Poisons Handbook, written by Abdel-Aziz in 1996 and "published" on the official Hamas website, details in twenty-three pages how to prepare various homemade poisons, poisonous gases, and other deadly materials for use in terrorist attacks. A much larger manual, nicknamed "The Encyclopedia of Jihad" and prepared by al Qaeda, runs to thousands of pages; distributed through the Internet, it offers detailed instructions on how to establish an underground organization and execute attacks. One al Qaeda laptop found in Afghanistan had been used to make multiple visits to a French site run by the Société Anonyme (a self-described "fluctuating group of artists and theoreticians who work specifically on the relations between critical thinking and artistic practices"), which offers a two-volume Sabotage Handbook with sections on topics such as planning an assassination and antisurveillance methods.
This kind of information is sought out not just by sophisticated terrorist organizations but also by disaffected individuals prepared to use terrorist tactics to advance their idiosyncratic agendas. In 1999, for instance, a young man by the name of David Copeland planted nail bombs in three different areas of London: multiracial Brixton, the largely Bangladeshi community of Brick Lane, and the gay quarter in Soho. Over the course of three weeks, he killed 3 people and injured 139. At his trial, he revealed that he had learned his deadly techniques from the Internet, downloading The Terrorist's Handbook and How to Make Bombs: Book Two. Both titles are still easily accessible. A search for the keywords "terrorist" and "handbook" on the Google search engine found nearly four thousand matches that included references to guidebooks and manuals. One site gives instructions on how to acquire ammonium nitrate, Copeland's "first choice" of explosive material. In Finland in 2002, a brilliant chemistry student who called himself "RC" discussed bomb-making techniques with other enthusiasts on a Finnish Internet website devoted to bombs and explosives. Sometimes he posted queries on topics such as manufacturing nerve gas at home. Often he traded information with the site's moderator, whose messages carried a picture of his own face superimposed on Osama bin Laden's body, complete with turban and beard. Then RC set off a bomb that killed seven people, including himself, in a crowded shopping mall. The website frequented by RC, known as the Home Chemistry Forum, was shut down by its sponsor, a computer magazine. But a backup copy was immediately posted again on a read-only basis.
Terrorists use the Internet not only to learn how to build bombs but also to plan and coordinate specific attacks. Al Qaeda operatives relied heavily on the Internet in planning and coordinating the September 11 attacks. Thousands of encrypted messages that had been posted in a password-protected area of a website were found by federal officials on the computer of arrested al Qaeda terrorist Abu Zubaydah, who reportedly masterminded the September 11 attacks. The first messages found on Zubaydah's computer were dated May 2001 and the last were sent on September 9, 2001. The frequency of the messages was highest in August 2001. To preserve their anonymity, the al Qaeda terrorists used the Internet in public places and sent messages via public e-mail. Some of the September 11 hijackers communicated using free web-based e-mail accounts.
Hamas activists in the Middle East, for example, use chat rooms to plan operations and operatives exchange e-mail to coordinate actions across Gaza, the West Bank, Lebanon, and Israel. Instructions in the form of maps, photographs, directions, and technical details of how to use explosives are often disguised by means of steganography, which involves hiding messages inside graphic files. Sometimes, however, instructions are delivered concealed in only the simplest of codes. Mohammed Atta's final message to the other eighteen terrorists who carried out the attacks of 9/11 is reported to have read: "The semester begins in three more weeks. We've obtained 19 confirmations for studies in the faculty of law, the faculty of urban planning, the faculty of fine arts, and the faculty of engineering." (The reference to the various faculties was apparently the code for the buildings targeted in the attacks.)

Paradoxically, the very decentralized network of communication that the U.S. security services created out of fear of the Soviet Union now serves the interests of the greatest foe of the West's security services since the end of the Cold War: international terror. The roots of the modern Internet are to be found in the early 1970s, during the days of the Cold War, when the U.S. Department of Defense was concerned about reducing the vulnerability of its communication networks to nuclear attack. The Defense Department decided to decentralize the whole system by creating an interconnected web of computer networks. After twenty years of development and use by academic researchers, the Internet quickly expanded and changed its character when it was opened up to commercial users in the late 1980s. By the mid-1990s, the Internet connected more than 18,000 private, public, and national networks, with the number increasing daily. Hooked into those networks were about 3.2 million host computers and perhaps as many as 60 million users spread across all seven continents. The estimated number of users in the early years of the twenty-first century is over a billion.
As it burgeoned, the Internet was hailed as an integrator of cultures and a medium for businesses, consumers, and governments to communicate with one another. It appeared to offer unparalleled opportunities for the creation of a forum in which the "global village" could meet and exchange ideas, stimulating and sustaining democracy throughout the world. However, with the enormous growth in the size and use of the network, utopian visions of the promise of the Internet were challenged by the proliferation of pornographic and violent content on the web and by the use of the Internet by extremist organizations of various kinds. Groups with very different political goals but united in their readiness to employ terrorist tactics started using the network to distribute their propaganda, to communicate with their supporters, to foster public awareness of and sympathy for their causes, and even to execute operations.
By its very nature, the Internet is in many ways an ideal arena for activity by terrorist organizations. Most notably, it offers
These advantages have not gone unnoticed by terrorist organizations, no matter what their political orientation. Islamists and Marxists, nationalists and separatists, racists and anarchists: all find the Internet alluring. Today, almost all active terrorist organizations (which number more than forty) maintain websites, and many maintain more than one website and use several different languages.
As the following illustrative list shows, these organizations and groups come from all corners of the globe. (This geographical categorization, it should be noted, reveals the geographical diversity but obscures the fact that many groups are truly transnational, and even transregional, in character.)
What is the content of terrorist sites? Typically, a site will provide a history of the organization and its activities, a detailed review of its social and political background, accounts of its notable exploits, biographies of its leaders, founders, and heroes, information on its political and ideological aims, fierce criticism of its enemies, and up-to-date news. Nationalist and separatist organizations generally display maps of the areas in dispute: the Hamas site shows a map of Palestine, the FARC site shows a map of Colombia, the LTTE site presents a map of Sri Lanka, and so forth. Despite the ever-present vocabulary of "the armed struggle" and "resistance," what most sides do not feature is a detailed description of their violent activities. Even if they expound at length on the moral and legal basis of the legitimacy of the use of violence, most sites refrain from referring to the terrorists' violent actions or their fatal consequences—this reticence is presumably inspired by propagandist and image-building considerations. Two exceptions to this rule are Hezbollah and Hamas, whose sites feature updated statistical reports of their actions ("daily operations") and tallies of both "dead martyrs" and "Israeli enemies" and "collaborators" killed.
Whom do the Internet terrorists target at their sites? An analysis of the content of the websites suggests three different audiences.