How to Hide Your Folder

follow this step to make your folder hidden

1. right click on start menu, click explore
2. when the explore windows open, choose the folder that want to hide
3. rigkt click on your folder, the shortcut menu open an choose properties
4. the properties dialog box opens
5. on the general tab, click attribut Hidden -> click Apply
6. the confirm attributs changes opens
7. click ok and click ok again
8. your folder is hidden now

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How To Change Recycle Bin Name

In normal condition, we can't change the recycle bin name like the other folder. but, with change the registry editor, we can change recycle bin name. follow this step to chang erecycle bin name

• Click start -> run, write regedit in the open dialog box -> click OK or press Enter
• In the registry editor windows, search key : HKEY_CLASSES_ROOT\CLSID\{645FF040-5081-101B-9F08-00AA002F954E} Value type : string value Value name : (Default) Value data : Recycle Bin change with tempat sampah

You can change "tempat sampah" with your creation

OR

• In the registry editor windows, search key : HKEY_CLASSES_ROOT\CLSID\{645FF040-5081-101B-9F08-00AA002F954E}\ShellFolder Value type : Binary value Value name : Attributes Value data : 0000 40 01 00 20 change with 0000 50 01 00 20
• Close registry editor and back to desktop
• Right click on recycle bin icon, click rename and you can change the recycle bin name.

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How to make DOS Prompt not active

This is the way to make DOS prompt not active to your computer. When we make DOS prompt not active, so the guest user can’t do anything to our computer by DOS prompt. Follow this step :

• Open registry windows, click start -> run -> then write "regedit" in the dialog box -> click OK or press enter
• In the registry editor window, search key : HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\WinOldApp Value type : DWORD Value Value Name : Disabled Value Data : 1; MS DOS Command prompt is not active

Be careful to change this value, if you do some mistake can cause windows crash

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HOW TO COPY FROM A WEB PAGE

To save pictures

• Go to the web page that features a picture you want to save.
• Right-click the item you want to save. The shortcut menu opens.
• Choose Save Picture As from the shortcut menu.
• The Save Picture dialog box opens.
• The default save location is My Pictures. Click the Save in drop down box arrow to navigate to a new save location.
• Rename the image in the File name text box if needed.
• Click Save or press Enter

To set a web page image as desktop wallpaper

• Go to the web page.
• Right-click the image, choose Set as Wallpaper from the shortcut menu.
• It will be saved in the list as Internet Explorer wallpaper.
• Minimize the window. Your new wallpaper should display.
• Each new graphic you set as wallpaper will replace the old one.

To edit wallpaper

• Choose Start -> Settings -> Control Panel.
• Double-click the Display icon to open the Display Properties window.
• Click the Background tab and adjust image settings.

To copy and paste text from a web page

• Go to the web page.
• Select the text / block the text you want to copy.
• Choose Edit à Copy from your web browser's menu bar or right-click the text and choose Copy from the shortcut menu.
• Open another application, such as Word, for example.
• Choose Edit Paste from the menu bar or right-click and choose Paste from the shortcut menu to paste the text into the document of choice (for example, a Word document).

To copy Web page

• Go to the web page.
• Choose File à Save as from your web browser’s menu bar.
• The save web page dialog box opens.
• The default save location is My Document. Click the Save in drop down box arrow to navigate to a new save location.
• Rename the web page in the File name text box if needed.
• You can choose the file type in the save as type text box if needed.
• Click Save or press Enter.

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The World Wide Web (WWW)

As you now know, the Internet is the physical computer network (CPU, monitor, modem, cables, phone lines, etc). Tim Berners-Lee, a software engineer, invented the World Wide Web in 1991. The Web is a system of Internet servers that support specially-formatted documents. These specially formatted documents are text documents created in HTML, a formatting language. In conjunction with the World Wide Web, your web browser interprets these text documents so they become web pages. Web pages contain formatted text, graphics, sound, animation, and video, allowing point and click navigation. WWW Also called the Web or World Wide Web. Web Browser is A piece of software used to navigate the Web. Internet Explorer and Netscape are web browsers. A GUI (graphical user interface) takes advantage of your computer's graphics (picture) capabilities to increase ease of use. For example, the buttons you point and click to surf the web is part of your web browser's GUI . Most operating systems include a GUI, such as Windows and Mac OS. In the past, there was no pointing and clicking; rather, the user had to know a command language to operate the computer HTML (Hypertext Markup Language) is The formatting language used to create web documents. Hypertext is The system of electronically linking words or pictures to other words or pictures.

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How to Cleanup Your Disk

When you install software, operate programs, and surf the Internet, temporary files are created. These files can clutter your computer and slow it down. Windows comes with a Disk Cleanup utility that removes temporary files and empties the Recycle Bin. Clearing out these files helps free up valuable hard disk space. To use Windows Disk Cleanup:

• Click Start.
• Choose Programs -> Accessories -> System Tools -> Disk Cleanup.
• The Select Drive dialog box asks you to "Select the drive you want to clean up."
• The C: drive is usually selected by default.
• Click OK to accept System (C:).
• The Disk Cleanup for System (C:) dialog box appears.
• Select Temporary Internet Files, Temporary Files and/or Recycle Bin.
• Click OK and the temp files you selected will be cleaned up.

Many other utilities are available to clean up your hard disk including CleanIt! and CleanWin. Most are freeware or shareware.

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Setup Internet Gateway with Linux

MINIMAL SYSTEM REQUIREMENT (recommended):

1. CPU minimum Pentium
2. HD 1 GB or more
3. RAM 8 MB or more
4. card LAN NE2000 compatible, chip REALTEK and PCI type (recommended)
5. Linux installed and working in recommended computer, Linux Mandrake v7.x (recommended)

ASSUMPTION:

1. Connect to the Internet with modem & telephone line
2. Can be editing file in Linux – use pico for easy way
3. Setup Internal network use private IP address class C (192.168.0.xxx) subnet mask 255.255.255.0
4. Use external modem,or internal modem non-winmodem/non-softmodem.
5. Linux Mandrake v7.x used by server
6. Workstation use Windows9x

HOW TO SETUP:

1. Login to Linux with root, after view prompt, write:
2. cd /etc
3. pico rc.local
4. add this row at that first file /etc/rc.local:
5. /etc/ppp/chain start
6. echo 1 > /proc/sys/net/ipv4/ip_dynaddr
7. pppd call ntlworld
8. File /etc/rc.local can be follow like file AUTOEXEC.BAT in DOS/Windows, everything here will be start automatically when computer start. /etc/ppp/chain start - run file "/etc/ppp/chain" (contain script to activate IP-masq) with "start" parameter echo 1 > /proc/sys/net/ipv4/ip_dynaddr – inform to Linux that we use IP address dynamic pppd call ntlworld – run pppd (equivalent dial up networking in Windows) an read the parameter from file "ntlworld" (in /etc/ppp/peers)
9. Next we make file /etc/ppp/chain. Change to directory /etc/ppp (cd /etc/ppp) and write pico chain. And write this row below: NAME=$0 case "$1" in start) echo -n "Starting IP chains (masq) support... " /sbin/ipchains -P forward DENY /sbin/ipchains -A forward -j MASQ -s 192.168.0.0/24 -d 0.0.0.0/0 # Block Windows "whohas" traffic to prevent spurious dialling... /sbin/ipchains -A forward -j DENY -p tcp -s 0.0.0.0/0 137:139 /sbin/ipchains -A forward -j DENY -p udp -s 0.0.0.0/0 137:139 /sbin/insmod ip_masq_cuseeme /sbin/insmod ip_masq_ftp /sbin/insmod ip_masq_irc /sbin/insmod ip_masq_quake /sbin/insmod ip_masq_raudio /sbin/insmod ip_masq_vdolive echo 1 > /proc/sys/net/ipv4/ip_dynaddr echo "Done." ;; stop) echo -n "Stopping IP chains (masq) support... " /sbin/rmmod ip_masq_cuseeme /sbin/rmmod ip_masq_ftp /sbin/rmmod ip_masq_irc /sbin/rmmod ip_masq_quake /sbin/rmmod ip_masq_raudio /sbin/rmmod ip_masq_vdolive /sbin/ipchains -D forward -j MASQ -s 192.168.0.0/24 echo 0 > /proc/sys/net/ipv4/ip_dynaddr echo "Done." ;; *) echo "Usage: /etc/ppp/$NAME {startstop}" exit 1 ;; esac exit 0
10. After make this file, now we make script file contains parameters to pppd, i.e. /etc/ppp/peers/ntlworld. Make that directory first (mkdir /etc/ppp/peers/), and than move to (cd /etc/ppp/peers/), next write pico ntlworld (or change ntlworld with your ISP name). next write this row: demand idle 600 ipcp-accept-remote ipcp-accept-local lock noauth defaultroute user harry.sufehmi remotename ppp0 /dev/ttyS1 57600 crtscts 0.0.0.0:0.0.0.0 connect '/usr/sbin/chat -f /etc/sysconfig/network-scripts/chat-ppp0'
11. some parameter may be need modification i.e.: demand - activate feature "demand dialing"/auto-dial, every linux detect internet access dan not connected, automatically will be dial to our ISP. idle 600 – if detect that user didn’t do anything for 600 s, disconnect the internet connection , 600 s can be change to 200 if you want it. user harry.sufehmi – change to you user id. /dev/ttyS1 57600 - /dev/ttyS1 if your modem connect to COM1 port,if not:for example in COM2 ganti menjadi /dev/ttyS2, etc
12. but every ISP can be different the configuration, if this example cannot connect to internet, please contact your ISP technical support.
13. Next we will make script file that used by chat program. write cd /etc/sysconfig/network-scripts/, and than write pico chat-ppp0. next write this row : 'ABORT' 'BUSY' 'ABORT' 'ERROR' 'ABORT' 'NO CARRIER' 'ABORT' 'NO DIALTONE' 'ABORT' 'Invalid Login' 'ABORT' 'Login incorrect' '' 'ATZM1L2&F&D2&C0' 'OK' 'ATDT08005190100' 'CONNECT' '' 'TIMEOUT' '5' '~--' ''
14. some parameter may be need modification i.e.: '' 'ATZM1L2&F&D2&C0' – if this init string can’t be accepted, please check to your manual modem. 'OK' 'ATDT08005190100' - change 08005190100 with your ISP Phone number.
15. Next we need to setup resolve.conf filewrite cd /etc/ppp, an than pico resolv.conf. and write this row:: domain ntlworld.com nameserver 194.168.4.100 nameserver 194.168.8.100 change ntlworld.com at domain ntlworld.com with your ISP domain name (ex: indosat.net.id), and address near nameserver parameter change with your address DNS Server ISP
16. at last, you need to setup password to ISP connection. write cd /etc/ppp. And you need to know,your ISP use security method PAP or CHAP? for PAP, write pico pap-secrets, for CHAP write pico chap-secretsthe content like this: harry.sufehmi ppp0 xxxxxxxxxxxxxxx change harry.sufehmi with your user name, and change xxxxxxxxxxxxxxx with your password.

After this you just configure the other computer in network, for assumption use Windows9x:

• Click Start - Settings - Control Panel
• Double click in icon Network
• Double click in protocol TCP/IP
• Click tab DNS Configuration
• Check Enable DNS
• Write DNS address you ISP server in textbox DNS Server Search Order, and click ADD.. Click OK, and click OK once more. Computer will be restart. Finish! Please Restart your computer (shutdown -r now), and enjoy your new Internet server gateway.

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INTERNET BASIC

A Brief History of the Internet In 1969, the US Department of Defense started a project to allow researchers and military personnel to communicate with each other in an emergency. The project was called ARPAnet and it is the foundation of the Internet. Throughout the 1970's, what would later become the Internet was developed. While mostly military personnel and scientists used it in its early days, the advent of the World Wide Web in the early 1990's changed all that. Today, the Internet is not owned or operated by any one entity. This worldwide computer network allows people to communicate and exchange information in new ways. According to www.commerce.net, in April of 1999, there were 92.2 million Internet users over the age of 16 in the United States and Canada. By 2005, it is predicted 75% of the total US population will be online The Internet is the largest computer network in the world, connecting millions of computers. A network is a group of two or more computer systems linked together. There are two types of computer networks: Local Area Network (LAN): A LAN is two or more connected computers sharing certain resources in a relatively small geographic location (the same building, for example). Wide Area Network (WAN): A WAN typically consists of 2 or more LANs. The computers are farther apart and are linked by telephone lines, dedicated telephone lines, or radio waves. The Internet is the largest Wide Area Network (WAN) in existence. Servers All computers on the Internet (a wide area network, or WAN) can be lumped into two groups: servers and clients. In a network, clients and servers communicate with one another. A server is the common source that : Provides shared services (for example, network security measures) with other machines and Manages resources (for example, one printer many people use) in a network. The term server is often used to describe the hardware (computer), but the term also refers to the software (application) running on the computer. Many servers are dedicated, meaning they only perform specific tasks. For example, An email server is a computer that has software running on it allowing it to "serve" email-related services. A web server has software running on it that allows it to "serve" web-related services. Clients Remember, all computers on the Internet (a wide area network, or WAN) can be lumped into two groups: servers and clients, which communicate with one another. Independent computers connected to a server are called clients. Most likely, your home or office computer does not provide services to other computers. Therefore, it is a client. Clients run multiple client software applications that perform specific functions. For example, An email application such as Microsoft Outlook is client software. Your web browser (such as Internet Explorer or Netscape) is client software. Servers and Clients Communicate Your computer (client hardware) is running a web browser such as Internet Explorer (client software). When you want to surf the web, your browser connects to a remote server and requests a web page. The remote server (server hardware) runs web server software (server software). The web server sends the web page to your computer's web browser. Your web browser displays the page.

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