Barracuda Networks 4 Instalační příručka stáhnout pdf (Strana 2)

2 Spam Firewall Administrator’s Guide

www.barracudanetworks.com

v3.2.22

Trademarks

Barracuda Spam Firewall is a trademark of Barracuda Networks. All other brand and product names mentioned in this document are registered

trademarks or trademarks of their respective holders.

1 2 3 4 5 6 7 ... 141 142

Version 1
Copyright Notice 2
Trademarks 2
Contents 3
Chapter 1 9
Introduction 9
Overview 10
Understanding Spam Scoring 11
Figure 1.2: 11
Inbound and Outbound Modes 12
Technical Support 12
Warranty Policy 12
Table 1.1: 13
Basic Tab 14
Table 1.2: 14
Block/Accept Tab 15
Users Tab 15
Domains Tab 15
Advanced Tab 16
Table 1.6: 17
Chapter 2 19
Pre-installation 19
Deployment Types 20
Pre-installation 21 21
ISP Installation Deployment 22
High Availability Deployment 23
Chapter 3 25
Step 2. Choose a Setup Type 26
Table 3.1: 27
Table 3.2: 28
Port Forwarding 31
MX Records 31
Installation Examples 32
Figure 3.2: 33
Changing to Outbound Mode 34
Table 3.4: 35
Email Server Refer to 35
Chapter 4 37
Performance Statistics 38
Subscription Status 39
Monitoring the Message Log 40
Classifying Messages 41
Table 4.4: 42
Button Description 42
Overview of the Message Log 43
Viewing Message Details 44
Clearing the Message Log 44
Table 4.6: 45
Setting Description 45
Table 4.7: 46
Setting Description 46
Table 4.8: 47
Quarantine Type 47
Location of Quarantined 47
Messages 47
Quarantine Responsibility 47
Table 4.9: 48
Table 4.10: 48
Table 4.11: 49
Table 4.12: 51
Shutting Down the System 52
Table 4.14: 53
Table 4.15: 54
Outlook Plu-In Description 54
Resetting the Bayes Database 55
Enabling Intent Analysis 56
Reducing Backscatter 57
Chapter 5 59
Table 5.1: 60
Blacklist Setting Description 60
Table 5.2: 60
Blacklist Service Description 60
IP Address Filters 61
Sender Domain Filters 62
Sender Email Address Filter 63
Attachment Type Filter 64
Subject Line Filter 65
Body Filter 66
Header Filter 66
Table 5.10: 67
Chapter 6 69
Managing Accounts and Domains 69
Table 6.1: 70
Column Description 70
Table 6.2: 70
Filter Description 70
Editing User Accounts 71
Table 6.3: 72
User Feature Description 72
To backup user settings: 74
Setting Retention Policies 75
Adding New Domains 75
Editing Domain Settings 76
Table 6.4: 77
Table 6.5: 78
Impact of a Down LDAP Server 80
Table 6.6: 81
Mail Server LDAP Setting 81
Chapter 7 83
Advanced Administration 83
Table 7.1: 84
Table 7.2: 86
Performing Desktop Backups 87
Restoring from a Backup File 88
Spam Definition Updates 89
Virus Definition Updates 90
Table 7.8: 91
Table 7.9: 93
Syslog Field Description 93
Table 7.10: 93
Table 7.11: 94
Cluster Set up Process 95
Figure 7.1: 96
Table 7.12: 96
Table 7.13: 97
Implementing Single Sign-on 99
Enabling SSL 100
Table 7.15: 101
Table 7.16: 102
Option Description 102
Table 7.17: 103
Field Description 103
Troubleshooting 104
Generating System Reports 105
Specifying Report Properties 106
Example Report 107
Enabling SMTP over TLS/SSL 107
Replacing a Failed System 108
Reboot Options 109
Table 7.22: 110
Reboot Option Description 110
Chapter 8 111
Outbound 111
About Outbound Mode 112
Figure 8.1: 113
Specifying Allowed Senders 114
Table 8.4: 115
Table 8.5: 115
Table 8.6: 116
Managing the Quarantine Box 117
Table 8.7: 118
Button Action 118
Adding a Relay Server 119
Chapter 9 121
Quarantine Summary Report 122
Table 9.1: 123
Action Desciption 123
Table 9.2: 124
Appendix 1 129
Regular Expressions 129
Examples 130
Regular Expressions 131 131
\*FREE\* *FREE* 131
Example Matches 131
Appendix 2 133
Exclusions and Restrictions 134
Open Source Licensing 134
Appendix 3 137
Compliance 137

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