Administrator's Guide - Kerio Software Archive

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Antivirus control The If an attachment cannot be scanned section defines actions to be taken if one or multiple files attached to a message cannot be scanned for any reason (e.g. password-protected archives, damaged files, etc.): • Reject the attachment — Kerio Control reacts in the same way as when a virus was detected (including all the actions described above). • Allow delivery of the attachment — Kerio Control behaves as if password-protected or damaged files were not infected. Generally, this option is not secure. However, it can be helpful for example when users attempt to transmit big volume of compressed password-protected files (typically password-protected archives) and the antivirus is installed on the workstations. 14.5 Scanning of files transferred via Clientless SSL-VPN (Windows) If Kerio Control is installed on Windows, the antivirus check is performed also for transfers of files between the local network and a remote client via Clientless SSL-VPN (see chapter 24). The SSL-VPN Scanningtab allows to set advanced parameters for scanning of files transferred via this interface. For the Kerio Control Software Appliance / VMware Virtual Appliance administration, the SSL-VPN Scanning tab is not available. Figure 14.10 Settings for scanning of files transferred via Clientless SSL-VPN Transfer directions Use the top section of the SSL-VPN Scanning tab to set to which transfer direction the antivirus check will be applied. By default, only files downloaded from a remote client to a local host are scanned to avoid slowdown (local network is treated as trustworthy). 202
14.5 Scanning of files transferred via Clientless SSL-VPN (Windows) If the antivirus check fails Options in the lower section of the tab specify an action which will be performed if a file cannot be scanned for any reason (encrypted or corrupted files, etc.). By default, transfer of such files is denied. 203
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Kerio Control Administrator’s Gui
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Contents 1 Quick Checklist . . . .
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13 HTTP and FTP filtering . . . . .
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26 Technical support . . . . . . .
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8. Enable the intrusion prevention
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2.2 Conflicting software Warning: S
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2.3 System requirements met). 2.3 S
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2.4 Installation - Windows • TCP/
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2.4 Installation - Windows Warning:
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2.5 Initial configuration wizard (W
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2.6 Upgrade and Uninstallation - Wi
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2.7 Installation - Software Applian
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2.7 Installation - Software Applian
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2.10 Kerio Control Engine Monitor (
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2.11 The firewall’s console (Soft
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3.1 Kerio Control Administration we
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3.2 Administration Console - the ma
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3.3 Administration Console - view p
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Chapter 4 License and Registration
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4.3 License information User is def
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4.4 Registration of the product in
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4.6 Subscription / Update Expiratio
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Chapter 5 Network interfaces Kerio
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5.3 Viewing and editing interfaces
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5.3 Viewing and editing interfaces
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5.5 Advanced dial-up settings Figur
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5.6 Supportive scripts for link con
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6.1 Persistent connection with a si
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6.1 Persistent connection with a si
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6.2 Connection with a single leased
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6.3 Connection Failover Advanced di
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6.3 Connection Failover Figure 6.8
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6.4 Network Load Balancing Note: 1.
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6.4 Network Load Balancing On the t
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6.4 Network Load Balancing Hint: Sp
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Chapter 7 Traffic Policy Traffic Ru
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7.1 Network Rules Wizard Step 4 —
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7.1 Network Rules Wizard Figure 7.5
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7.1 Network Rules Wizard Note: In t
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7.3 Definition of Custom Traffic Ru
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7.4 Basic Traffic Rule Types Do not
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7.4 Basic Traffic Rule Types Figure
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7.4 Basic Traffic Rule Types Transl
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7.5 Policy routing 7.5 Policy routi
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7.6 User accounts and groups in tra
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7.7 Partial Retirement of Protocol
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7.8 Use of Full cone NAT as possibl
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7.9 Media hairpinning the port of t
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8.1 Network intrusion prevention sy
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8.1 Network intrusion prevention sy
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8.2 MAC address filtering Figure 8.
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8.3 Special Security Settings Anti-
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8.4 P2P Eliminator Figure 8.5 Detec
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8.4 P2P Eliminator The Define servi
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9.1 DNS module of the firewall’s
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9.1 DNS module Figure 9.2 Editor of
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9.1 DNS module Figure 9.3 Specific
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9.2 DHCP server If the Do not forwa
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9.2 DHCP server Figure 9.5 DHCP ser
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9.2 DHCP server Leases IP scopes ca
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9.2 DHCP server Figure 9.13 DHCP se
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9.3 Dynamic DNS for public IP addre
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9.4 Proxy server Proxy Server Confi
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9.5 HTTP cache Note: The configurat
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9.5 HTTP cache other objects can be
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Page 155 and 156: 10.2 Bandwidth Limiter configuratio
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Page 165 and 166: 12.1 Web interface and certificate
Page 167 and 168: 12.2 User authentication at the web
Page 169 and 170: Chapter 13 HTTP and FTP filtering K
Page 171 and 172: 13.2 URL Rules Rules in this sectio
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Page 175 and 176: 13.2 URL Rules • A page informing
Page 177 and 178: 13.3 Content Rating System (Kerio W
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Page 181 and 182: 13.4 Web content filtering by word
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Page 185 and 186: 13.5 FTP Policy Weight Word weight
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Page 191 and 192: 14.2 How to choose and setup antivi
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Page 199 and 200: 14.4 Email scanning If only an aste
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Page 209 and 210: 15.3 Services Protocol The communic
Page 211 and 212: 15.4 URL Groups Note: 1. Generally,
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Page 215 and 216: 16.1 Viewing and definitions of use
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Page 227 and 228: 16.3 Local user database: external
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Page 239 and 240: Chapter 17 Administrative settings
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Page 245 and 246: 18.1 Routing table Route Types The
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19.1 Active hosts and connected use
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19.2 Network connections overview
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19.2 Network connections overview F
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19.4 Alerts • Session duration.
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19.4 Alerts • Connection failover
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19.4 Alerts Click an event to view
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20.1 Volume of transferred data and
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20.2 Interface statistics Figure 20
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20.2 Interface statistics Figure 20
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21.1 Monitoring and storage of stat
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21.2 Settings for statistics and qu
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21.3 Connection to StaR and viewing
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21.3 Connection to StaR and viewing
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22.1 Log settings Figure 22.1 Log s
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22.1 Log settings Figure 22.3 Syslo
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22.2 Logs Context Menu • Target f
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22.3 Alert Log Figure 22.7 Highligh
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22.5 Connection Log A typical examp
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22.6 Debug Log The expression must
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22.7 Dial Log 3. Disconnection caus
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22.9 Filter Log • 8000-8099 — H
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22.10 Http log Packet log example:
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22.11 Security Log An example of Ht
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22.11 Security Log Example: [17/Jul
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22.13 Warning Log Events causing di
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Chapter 23 Kerio VPN Kerio Control
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23.1 VPN Server Configuration Figur
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23.1 VPN Server Configuration the V
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23.1 VPN Server Configuration Kerio
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23.3 Interconnection of two private
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23.4 Exchange of routing informatio
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23.5 Example of Kerio VPN configura
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23.6 Example of a more complex Keri
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24.1 Kerio Control SSL-VPN configur
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Chapter 25 Specific settings and tr
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25.3 Automatic user authentication
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25.3 Automatic user authentication
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25.4 FTP over Kerio Control proxy s
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25.5 Internet links dialed on deman
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The text file will be stored in the
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Appendix B Used open source items K
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Copyright © 2005 Harald Welte Dist
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Glossary of terms ActiveX This Micr
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Ident The Ident protocol is used fo
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Policy routing Advanced routing tec
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TCP Transmission Control Protocol i
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dial-up 64 dialing scripts 21, 58 h
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S service 89, 207 SIP 210 SSL-VPN 3
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