Administrator's Guide - Kerio Software Archive

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Kerio VPN To make sure that the specified port is really free, view the Error log to see whether an error of this type has not been reported. Custom Routes Other networks to which a VPN route will be set for the client can be specified in this section. By default, routes to all local subnets at the VPN server’s side are defined — see chapter 23.4). Hint: Use the 255.255.255.255 network mask to define a route to a certain host. This can be helpful for example when a route to a host in the demilitarized zone at the VPN server’s side is being added. 23.2 Configuration of VPN clients The following conditions must be met to enable connection of remote clients to local networks via encrypted channels: • The Kerio VPN Client must be installed at remote clients (for detailed description, refer to a stand-alone document, Kerio VPN Client — User Guide). • Users whose accounts are used for authentication to Kerio VPN Client must possess rights enabling them connect to the VPN server in Kerio Control (see chapter 16.116.1). • Connection to the VPN server from the Internet as well as communication between VPN clients must be allowed by traffic rules. Hint:: VPN clients correctly connected to the firewall can be overviewed in the Administration Console, section Status → VPN clients. For details, see chapter 19.3. Basic configuration of traffic rules for VPN clients Figure 23.7 Common traffic rules for VPN clients 314
23.3 Interconnection of two private networks via the Internet (VPN tunnel) • The first rule allows connection to the VPN server in Kerio Control from the Internet. To restrict the number of IP addresses from which connection to the VPN server will be allowed, edit the Source entry. By default, the Kerio VPN service is defined for TCP and UDP protocols, port 4090. If the VPN server is running at another port, this service must be redefined. • The second rule allows communication between the firewall, local network and VPN clients. If the rules are set like this, all VPN clients can access local networks and vice versa (all local hosts can communicate with all VPN clients). To restrict the type of network access available to VPN clients, special rules must be defined. A few alternatives of the restrictions settings within Kerio VPN are focused in chapter 23.5. Note: 1. If the Network Rules Wizard is used to create traffic rules, the described rules can be generated automatically (including matching of VPN clients with the Source and Destination items). To generate the rules automatically, select Yes, I want to use Kerio VPN in Step 5. For details, see chapter 7.1. 2. For access to the Internet, VPN clients use their current Internet connections. VPN clients are not allowed to connect to the Internet via Kerio Control (configuration of default gateway of clients cannot be defined). 3. For detailed information about traffic rules, refer to chapter 7. 23.3 Interconnection of two private networks via the Internet (VPN tunnel) Kerio Control with support for VPN (VPN support is included in the typical installation) must be installed in both networks to enable creation of an encrypted tunnel between a local and a remote network via the Internet (“VPN tunnel”). Note: Each installation of Kerio Control requires its own license (see chapter 4). Setting up VPN servers First, the VPN server must be allowed by the traffic policy and enabled at both ends of the tunnel. For detailed description on configuration of VPN servers, refer to chapter 23.1. Definition of a tunnel to a remote server VPN tunnel to the server on the other side must be defined at both ends. Use the Add → VPN tunnel option in the Interfaces section to create a new tunnel. 315
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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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9.5 HTTP cache TTL TTL of objects m
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Chapter 10 Bandwidth Limiter The ma
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10.2 Bandwidth Limiter configuratio
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10.2 Bandwidth Limiter configuratio
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10.3 Detection of connections with
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11.1 Firewall User Authentication T
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11.1 Firewall User Authentication a
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12.1 Web interface and certificate
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12.2 User authentication at the web
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Chapter 13 HTTP and FTP filtering K
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13.2 URL Rules Rules in this sectio
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13.2 URL Rules for example a rule a
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13.2 URL Rules • A page informing
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13.3 Content Rating System (Kerio W
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13.3 Content Rating System (Kerio W
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13.4 Web content filtering by word
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13.4 Web content filtering by word
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13.5 FTP Policy Weight Word weight
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13.5 FTP Policy Open the General ta
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13.5 FTP Policy Scan content for vi
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14.2 How to choose and setup antivi
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14.2 How to choose and setup antivi
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14.3 HTTP and FTP scanning Warning:
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14.3 HTTP and FTP scanning Use the
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14.4 Email scanning If only an aste
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14.4 Email scanning Figure 14.9 Set
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14.5 Scanning of files transferred
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15.2 Time Ranges Figure 15.2 IP gro
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15.3 Services Figure 15.4 Time rang
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15.3 Services Protocol The communic
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15.4 URL Groups Note: 1. Generally,
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15.4 URL Groups Examples:: • www.
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16.1 Viewing and definitions of use
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16.2 Local user accounts Accounts m
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16.2 Local user accounts Name Usern
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16.2 Local user accounts Step 3 —
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16.2 Local user accounts Figure 16.
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16.2 Local user accounts Within thi
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16.3 Local user database: external
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16.4 User accounts in Active Direct
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16.5 User groups Note: In case of u
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16.5 User groups Using the Add and
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Chapter 17 Administrative settings
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17.3 Update Checking Figure 17.2 Tr
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17.3 Update Checking Last update ch
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18.1 Routing table Route Types The
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18.2 Universal Plug-and-Play (UPnP)
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18.3 Relay SMTP server 18.3 Relay S
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Chapter 19 Status Information Kerio
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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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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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