Administrator's Guide - Kerio Software Archive

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User Authentication Redirection to the authentication page If the Always require users to be authenticated when accessing web pages option is enabled, user authentication will be required for access to any website (unless the user is already authenticated). The method of the authentication request depends on the method used by the particular browser to connect to the Internet: • Direct access — the browser will be automatically redirected to the authentication page of the Kerio Control’s web interface (see chapter 12.2) and, if the authentication is successful, to the solicited web page. • Kerio Control proxy server — the browser displays the authentication dialog and then, if the authentication is successful, it opens the solicited web page. If the Always require users to be authenticated when accessing web pages option is disabled, user authentication will be required only for Web pages which are not available (are denied by URL rules) to unauthenticated users (refer to chapter 13.2). Note: User authentication is used both for accessing a Web page (or/and other services) and for monitoring of activities of individual users (the Internet is not anonymous). Force non-transparent proxy server authentication Under usual circumstances, a user connected to the firewall from a particular computer is considered as authenticated by the IP address of the host until the moment when they log out manually or are logged out automatically for inactivity. However, if the client station allows multiple users connected to the computer at a moment (e.g. Microsoft Terminal Services, Citrix Presentation Server orFast user switching on Windows XP, Windows Server 2003, Windows Vista and Windows Server 2008), the firewall requires authentication only from the user who starts to work on the host as the first. The other users will be authenticated as this user. In case of HTTP and HTTPS, this technical obstruction can be passed by. In web browsers of all clients of the multi-user system, set connection to the Internet via the Kerio Control’s proxy server (for details, see chapter 9.4), and enable the Enable non-transparent proxy server option in Kerio Control. The proxy server will require authentication for each new session of the particular browser. 6 . Forcing user authentication on the proxy server for initiation of each session may bother users working on “single-user” hosts. Therefore, it is desirable to force such authentication only for hosts used by multiple users. For this purpose, you can use the Apply only for these IP addresses option. Automatic authentication (NTLM) If the Enable user authentication automatically... option is checked and Internet Explorer or Firefox/SeaMonkey is used, it is possible to authenticate the user automatically using the NTLM method. This means that the browser does not require username and password and simply uses the identity of the first user connected to Windows. However, the NTLM method is not 6 Session is every single period during which a browser is running. For example, in case of Internet Explorer, Firefox and Opera, a session is terminated whenever all windows and tabs of the browser are closed, while in case of SeaMonkey, a session is not closed unless the Quick Launch program is stopped (an icon is displayed in the toolbar’s notification area when the program is running). 162
11.1 Firewall User Authentication available for other operating systems. For details, refer to chapter 25.3. Automatically logout users when they are inactive Timeout is a time interval (in minutes) of allowed user inactivity. When this period expires, the user is automatically logged out from the firewall. The default timeout value is 120 minutes (2 hours). This situation often comes up when a user forgets to logout from the firewall. Therefore, it is not recommended to disable this option, otherwise login data of a user who forgot to logout might be misused by an unauthorized user. 163
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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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Page 165 and 166: 12.1 Web interface and certificate
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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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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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