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Hodnocené. / 5. Na základě hodnocení zákazníků
Advanced Administration 85
Configuring Message Rate Control
Rate Controls allows you to configure how many connections are allowed from the same IP address
in a half-hour time period. Rate Control protects you from spammers or spam-programs that send
large amounts of e-mail to your server in a small amount of time.
The table below describes each setting on this page. Click
Save Changes after making any
modifications.
Incoming SMTP Timeout Sets a limit on the time spent on an incoming SMTP transaction. The
default is 30 seconds.
Setting a time limit on SMTP transactions prevents spammers from
maintaining open connections to the Barracuda Spam Firewall that can
impact system resources. Messages in SMTP transactions that go
over this threshold show up on the Message Log page as being
blocked with a reason of timeout.
SMTP Messages Per Session (inbound mode only)
Messages per SMTP session Sets a limit on the number of messages in one SMTP session. If the
number of messages in one session exceeds this threshold the rest of
the messages are blocked and show up in the message log as being
blocked with a reason of Per-Connection Message Limit Exceeded.
SMTP Welcome Banner
SMTP Welcome Banner Whether the Welcome Banner is presented to the SMTP client
connecting to the Barracuda Spam Firewall.
This value should be unique to make it easy for you to identify the
system presenting the Welcome Banner.
This value can be left blank for the Barracuda Spam Firewall to
manage the setting.
Barracuda Headers
Remove Barracuda Headers Removes Barracuda’s custom X-headers that are applied before a
message leaves the system.
It is recommended you do not remove Barracuda headers because
they contain the reason a message is tagged, quarantined or blocked.
This information makes it easier to troubleshoot message handling
issues.
Table 7.1:
- 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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