Benutzerhandbuch für McAfee firewall 2.1-getting started

Inhaltsverzeichnis

• McAfee Firewall

  1
• Table of Contents

  7
• 1 Welcome to McAfee Firewall

  11
  • About McAfee Firewall

    11
    • Figure 11. McAfee Firewall main window

      11
  • How McAfee Firewall works

    12
  • About McAfee Firewall documentation

    12
    • McAfee Firewall online Help

      13
      • To launch McAfee Firewall help:

        13
        • 1. In the text box, type the first few letters of the word or phrase you are looking for.

          13
        • 2. Locate what you are looking for; then double-click the topic or click the Display button.

          13
        • 1. In the text box, type the first few letters of the word or phrase you are looking for. You can...

          13
        • 2. Once you have located what you are looking for in the display topic box, click the topic.

          13
  • Frequently Asked Questions

    13
    • How will McAfee Firewall help me?

      13
    • How is my PC at risk on the Internet?

      14
    • What other protection do I need?

      14
    • Are there any data packets that McAfee Firewall cannot stop?

      15
      • Inbound Data: No.

        15
      • Outbound Data: Yes and no.

        15
    • What network devices does McAfee Firewall support?

      15
    • What protocols can McAfee Firewall filter?

      15
    • How can I still be harassed, even with McAfee Firewall?

      16
      • Figure 12. Normal TCP Connection

        16
• 2 Installing McAfee Firewall

  17
  • System requirements

    17
  • About Winsock 2

    17
  • Installing McAfee Firewall

    17
    • To install McAfee Firewall

      18
      • 1. Close all open programs.

        18
      • 2. Insert the McAfee Firewall CD in the CD-ROM drive.

        18
      • 3. In the McAfee Firewall Setup screen, click Install McAfee Firewall.

        18
  • Troubleshooting installation problems

    18
    • Step 1: Clean up your hard drive

      18
      • 1. Click Start on the Windows taskbar, point to Programs, then Accessories, then System Tools, an...

        18
      • 2. In the ScanDisk window, select Standard and Automatically fix errors.

        18
      • 3. Click Advanced. In the Advanced Settings dialog box, make sure the following settings are sele...

        18
      • 4. Ignore the other options, and click OK. Click Start. ScanDisk begins scanning your drive for e...

        19
      • 5. When ScanDisk is finished, close ScanDisk.

        19
      • 6. Click Start on the Windows taskbar, point to Programs, then Accessories, then System Tools, an...

        19
      • 7. Click OK to start Disk Defragmenter. Depending on the speed of your computer and the size of y...

        19
      • 8. Close Disk Defragmenter when it has finished defragmenting your disk.

        19
    • Step 2: Remove temporary files

      19
      • 1. Double-click the My Computer icon on your desktop. The My Computer window opens. Double-click ...

        19
      • 2. Double-click the Windows folder.

        19
      • 3. In the Windows folder, double-click the Temp folder.

        19
      • 4. In the menu, click Edit, then click Select All. All of the items in your Temp folder are highl...

        19
      • 5. Press the Delete key on your keyboard to delete the files. If Windows asks about deleting file...

        19
      • 6. In the Windows taskbar, click Start, then click Shut Down.

        19
      • 7. Click Restart the computer, then click Yes in the Shut Down Windows dialog box to restart your...

        19
    • Step 3: Close other software

      19
      • 1. Hold down the Ctrl and Alt keys on your keyboard, and then press the Delete key once. The Clos...

        19
      • 2. Click End Task for every item on the list except Explorer.

        19
      • 3. Repeat steps 2 and 3 until you’ve closed everything except Explorer.

        20
      • 4. When you see only Explorer in the Close Program dialog box, click Cancel.

        20
• 3 McAfee Firewall Configurations

  21
  • Applications

    21
    • Control applications

      21
    • Default settings for applications

      22
  • Systems

    22
    • Control system

      22
      • Figure 31. System Settings

        22
      • Figure 32. Dial-Up Adapter [0000] Properties

        23
    • Default settings for System activity

      24
      • NetBIOS over TCP: Blocked

        24
      • Identification: Allowed

        24
      • ICMP: Blocked

        24
      • ARP: Allowed

        24
      • DHCP: Allowed if your system uses DHCP

        24
      • RIP: Blocked

        24
      • PPTP: Blocked

        24
      • Other Protocols: Blocked

        24
    • Password Protection

      25
  • Instructions for Administrators

    25
    • Configuring Network, Display and Logging Controls

      25
      • Network Control

        25
      • Display Control

        25
      • Logging Control

        25
    • Configuring Applications

      26
      • 1. Select the Settings menu item, and the Applications option on the popup menu.

        26
      • 2. Do not select "Trust all applications" unless you are very sure this is what you want. When se...

        26
      • 3. Close the Application Settings dialog box, choosing "OK".

        26
      • 4. Add applications you want to communicate to the "Trusted Applications" list by running the app...

        26
      • 5. Once you have run the applications you want to communicate, review the Trusted and Blocked App...

        26
      • 6. Select the application and click either Add, Remove, or Allow. Click the Trust all application...

        26
      • Figure 33. Application Settings dialog box

        26
        • 7. Choose "OK" to close the dialog box.

          26
        • 8. Choose File/Save Settings if you want to write this new configuration to disk immediately. Not...

          27
    • Configuring System Settings

      27
      • 1. List all the network segments that are connected to computers that are to be configured.

        27
      • 2. Decide what network traffic should be allowed on each network segment.

        27
      • 3. Select the Settings menu item, and the System option on the popup menu.

        27
      • 4. From the list of network devices, determine which device is connected to which network segment...

        27
      • 5. For each device:

        27
      • 6. Choose OK to close the System/Settings dialog box.

        27
    • Configuration after Adding/Removing Network Devices

      28
      • 1. Select the Settings menu item, and the System option on the popup menu.

        28
      • 2. For each network device:

        28
      • 3. Choose OK to close the System/Settings dialog box.

        28
    • Using Password Protection

      28
      • 1. Select the File menu item, and the "Password" option on the popup menu. This pops up another m...

        28
      • 2. Enter a secret password in the two places shown and choose OK.

        28
      • 3. Write the password down and store it in a safe place. There is no mechanism for retrieving the...

        28
• 4 Glossary

  31
• A Product Support

  41
  • How to Contact McAfee

    41
    • Customer service

      41
    • Technical support

      42
      • Support via the web

        42
      • Support forums and telephone contact

        42
        • Table A1.

          42
        • Table A1.

          43
    • McAfee training

      43
• Index

  45
  • A

    45
    • About McAfee Firewall 11

      45
    • Address 31

      45
    • Administrator 31

      45
    • Allow/Block (packets) 31

      45
    • ARP 24, 31

      45
    • Authentication 31

      45
  • B

    45
    • BO 31

      45
    • BRKill 31

      45
    • Broadcast (networks) 31

      45
    • Button 32

      45
  • C

    45
    • Configuration after Adding/Removing Network Devices 28

      45
    • Configurations 21

      45
    • Configuring Applications 26

      45
    • Configuring Network, Display and Logging Controls 25

      45
    • Configuring System Settings 27

      45
    • Connection 32

      45
    • Control applications 21

      45
    • Control system 22

      45
    • Cookies 32

      45
  • D

    45
    • datagram 32

      45
    • Default 32

      45
    • Default settings for applications 22

      45
    • DHCP 24, 32

      45
    • Dialog Box 32

      45
    • Dial-Up Adapter 23

      45
    • DNS 32

      45
  • E

    45
    • Email 33

      45
    • Ephemeral (port) 33

      45
    • Ethernet 33

      45
  • F

    45
    • Fileshare 33

      45
    • Filter (firewalls) 33

      45
    • finger 33

      45
    • Firewall 33

      45
    • Flood blocking a TCP connection 16

      45
    • FTP 33

      45
  • G

    45
    • GRE 33

      45
  • H

    45
    • Hacker 33

      45
    • How is my PC at risk on the Internet? 14

      45
    • How McAfee Firewall works 12

      45
    • HTTP 33

      45
    • HTTPS 34

      45
  • I

    45
    • ICMP 24, 34

      45
    • ICQ 34

      45
    • Identification 34

      45
    • Inbound Data 15

      45
    • inbound packet 34

      45
    • Installing McAfee Firewall 17

      45
    • Instructions for Administrators 25

      45
    • IP 34

      46
    • IPX 34

      46
    • IPX network 24

      46
    • ISDN 35

      46
    • ISP 35

      46
  • L

    46
    • Listening 35

      46
    • Local (address or port) 35

      46
    • Log File 35

      46
  • M

    46
    • McAfee Firewall filter 15

      46
    • Menu 35

      46
    • Message Box 35

      46
    • Modem 35

      46
  • N

    46
    • NetBEUI 35

      46
    • NetBIOS 35

      46
    • NetBIOS over TCP 24

      46
    • NetBus 36

      46
    • Netware-IP 36

      46
    • Network 36

      46
    • Network Device 36

      46
    • News (NNTP) 36

      46
    • Normal TCP Connection 16

      46
    • ntp 36

      46
  • O

    46
    • Operating System 36

      46
    • Outbound Data 15

      46
    • outbound packet 36

      46
  • P

    46
    • Packet 36

      46
    • Packet Filter 36

      46
    • Password 37

      46
    • Password Protection 25

      46
    • Phone Book 37

      46
    • ping 37

      46
    • POP2 37

      46
    • POP3 37

      46
    • PPP 37

      46
    • PPPoE 37

      46
    • PPTP 24, 37

      46
    • Printshare 37

      46
    • Protocol 37

      46
    • protocols 15

      46
  • R

    46
    • RARP 38

      46
    • RAS 38

      46
    • Remote (address or port) 38

      46
    • RIP 24, 38

      46
  • S

    46
    • Server-side nuking 16

      46
    • Service 38

      46
    • SLIP 38

      46
    • SMTP 38

      46
    • SNMP 38

      46
    • SPX 38

      46
    • System activity 24

      46
    • System requirements 17

      46
  • T

    46
    • TCP 38

      46
    • Telnet 38

      46
    • tftp 39

      46
    • Toggle 39

      46
    • trojan 39

      46
    • Tunnel 39

      46
  • U

    47
    • UDP 39

      47
    • Using Password Protection 28

      47
  • V

    47
    • Virus (software) 39

      47
    • VPN 39

      47
  • W

    47
    • WINS 40

      47
    • Winsock 40

      47
    • Winsock 2 17

      47