Administrator's Guide - Kerio Software Archive

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Chapter 24 Kerio Clientless SSL-VPN (Windows) Kerio Clientless SSL-VPN (thereinafter “SSL-VPN ”) is a special interface used for secured remote access to shared items (files and folders) in the network protected by Kerio Control via a web browser. This interface is available only in Kerio Control on Windows. To a certain extent, the SSL-VPN interface is an alternative to Kerio VPN Client (see chapter 23). Its main benefit is that it enables an immediate access to a remote network from any location without any special application having been installed and any configuration having been performed (that’s the reason for calling it clientless). The main disadvantage of this alternative is that network connections are not transparent. SSL-VPN is, in a manner, an alternative to the My Network Places system tool ) — it does not enable access to web servers or other services in a—remote network. SSL-VPN is suitable for an immediate access to shared files in remote networks in such environments where it is not possible or useful to use Kerio VPN Client. This chapter addresses configuration details needed for proper functionality of the SSL-VPN interface. The SSL-VPN interface is described thoroughly in the Kerio Control — User’s Guide. 24.1 Kerio Control SSL-VPN configuration SSL-VPN interface requirements For proper functionality of the SSL-VPN interface, the following conditions must be met: 1. The Kerio Control host must be a member of the corresponding domain (Windows NT or Active Directory domain). 2. User accounts that will be used for connections to SSL-VPN must be authenticated at the domain (it is not possible to use local authentication). This implies that the SSL-VPN interface cannot be used for accessing shared items in multiple domains or to items at hosts which are not members of any domain. 3. Users who are supposed to be allowed to access the SSL-VPN interface needs the right to use Clientless SSL-VPN in Kerio Control (see chapter 16.2). 4. If Kerio Control is installed on the domain server, the corresponding users need to be allowed to log on to the server locally. Local logon can be allowed under Domain Controller Security Policy. For details, refer to our Knowledge Base. 360
24.1 Kerio Control SSL-VPN configuration SSL-VPN interface configuration To configure SSL-VPN, go to the SSL-VPN folder in Configuration → Advanced Settings. Figure 24.1 Configuration of the SSL-VPN interface SSL-VPN’s default port is port 443 (standard port of the HTTPS service). Click Change SSL Certificate to create a new certificate for the SSL-VPN service or to import a certificate issued by a trustworthy certification authority. When created, the certificate is saved as sslvpn.crt and the corresponding private key as sslvpn.key. The process of creating/importing a certificate is identical as the one for Kerio Control’s interface or the VPN server, addressed in detail in chapter 12.1. Hint: Certificates for particular server name issued by a trustworthy certification authority can also be used for the Web interface and the VPN server it is not necessary to use three different certificates. Allowing access from the Internet Access to the SSL-VPN interface from the Internet must be allowed by defining a traffic rule allowing connection to the firewall’s HTTPS service. For details, see chapter 7.4. Figure 24.2 Traffic rule allowing connection to the SSL-VPN interface 361
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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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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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Page 379 and 380: Appendix B Used open source items K
Page 381 and 382: Copyright © 2005 Harald Welte Dist
Page 383 and 384: Glossary of terms ActiveX This Micr
Page 385 and 386: Ident The Ident protocol is used fo
Page 387 and 388: Policy routing Advanced routing tec
Page 389 and 390: TCP Transmission Control Protocol i
Page 391 and 392: dial-up 64 dialing scripts 21, 58 h
Page 393 and 394: S service 89, 207 SIP 210 SSL-VPN 3
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