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Trend Micro™ InterScan™ Web Security Virtual Appliance 6.5 Installation Guide
2-20
Web page requests follow this sequence:
1. The Web client sends a request to the HTTP proxy server.
2. The proxy server forwards the request to IWSVA.
3. IWSVA validates the request using URL Filtering/URL Access Control:
• If the URL is invalid (blocked), the HTTP service sends the HTTP client an
appropriate notice, completing the transaction.
• If the URL is valid, the HTTP service forwards the request to the Web server
on the Internet.
4. The contacted Web server returns a response (ideally a Web page) to IWSVA.
5. IWSVA performs its processing on the returned data (virus, spyware, ActiveX
scanning), then forwards the appropriate response/data to the proxy server.
6. The Proxy server caches the data (if cacheable), then delivers the response/data to
the HTTP client.
F
IGURE
2-9.
HTTP Proxy in Dependent Mode (Proxy Behind)
T
ABLE
2-5.
HTTP Proxy in Dependent Mode (Proxy Behind)
A
DVANTAGES
L
IMITATIONS
No configuration changes required
on the clients.
Configuration changes or pattern
updates on IWSVA do not affect cached
objects.
- Contents 5
- Chapter 2: Deployment Primer 6
- Appliance 7
- Deployment 8
- ESX for IWSVA 9
- Hyper-V for IWSVA 9
- Audience 12
- How to Use this Guide 12
- IWSVA Documentation 14
- Document Conventions 15
- About Trend Micro 15
- Chapter 1 17
- Server Requirements 18
- Component Installation 19
- Web Browser 20
- Other Requirements 21
- Fresh Installation 22
- Migration 22
- Type of Proxy Configuration 23
- Database Type and Location 23
- SNMP Notifications 23
- Web Console Password 23
- Command Line Access 24
- Proxy for Internet Updates 24
- Activation Codes 24
- Transparent Bridge Mode 25
- Forward Proxy Mode 26
- Reverse Proxy Mode 26
- ICAP Mode 26
- Simple Transparency Mode 26
- WCCP Mode 27
- Chapter 2 29
- Two Firewalls with DMZ 30
- One Firewall with No DMZ 31
- 2-2 32
- Planning the HTTP Flow 33
- Transparent Bridge Settings 34
- Forward Proxy Settings: 34
- Reverse Proxy Settings: 34
- ICAP Proxy Settings: 34
- Planning FTP Flows 35
- FTP Proxy in Dependent Mode 37
- 2-4 38
- Reconfiguring Client Settings 39
- Using a Layer 4 Switch 40
- 2-6 41
- DVANTAGES 42
- IMITATIONS 42
- 2-7 43
- DVANTAGE 44
- IMITATION 44
- 2-8 45
- Deployment Primer 47
- 2-5 49
- Deploying in ICAP Mode 51
- Servers) 53
- 2-12 55
- 2-14 58
- 2-16 61
- Chapter 3 65
- Obtaining IWSVA 66
- Installing IWSVA 68
- 3-2 73
- /root/install.log 73
- The initial CLI log in screen 74
- Post-Installation Notes 75
- Chapter 4 77
- About Migration 78
- Information Not Migrated 79
- IWSVA 6.5 81
- After Migrating 83
- Appendix A 85
- Integration with LDAP 88
- WCCP protocol 91
- Reverse Proxy 92
- ICAP-SERVER-IP 96
- A-2 98
- Deployment Integration 101
- Appendix B 103
- IWSVA Performance Tuning 104
- Tuning and Troubleshooting 105
- Troubleshooting 108
- General Feature Problems 109
- Appendix C 111
- IWSVA Installation Overview 112
- Best Practice Suggestions 114
- Appendix D 119
- Product Maintenance 120
- Contacting Technical Support 122
- TrendLabs 123
- Knowledge Base 123
- Known Issues 124
- Security Information Center 125
- To open Security Information: 126
- Appendix E 127
- Introduction 128
- E-1 129
- E-2 130
- To create the virtual machine 130
- 8. Click Next 131
- E-4 132
- 11. Click Next 133
- 13. Click Next 134
- 15. Click Next 135
- 17. Click Next 136
- E-9 137
- E-10 138
- E-11 139
- E-12 140
- Completing the Installation 142
- Appendix F 143
- IWSVA Support for Hyper-V 144
- F-1 145
- F-2 146
- F-3 146
- F-4 147
- Importing the IWSVA Image 149
- F-7 150
- Assigning Resources to IWSVA 151
- F-9 152
- F-10 153
- The Processor area appears 154
- The Memory area appears 155
- 12. Click Add 156
- The Hard Drive area appears 157
- 14. Click New 157
- F-15 158
- F-16 159
- 19. Click Next 160
- 22. Click Next 160
- F-18 161
- F-19 162
- F-20 164
- F-21 165
- F-23 167
- F-24 168
- F-25 169
- F-26 170
- X-Infection-Found 175
- X-Virus-ID 175
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