Advanced security features, 214 | Kerio Tech Firewall6 guide

Chapter 15 Advanced security features

Figure 15.1 Detection settings and P2P Eliminator

As implied by the previous description, it is not possible to block connections to par- ticular P2P networks. P2P Eliminator enables to block connection to the Internet from particular hosts (Block all traﬃc for the particular user), to allow these users to connect to certain services only Allow only predeﬁned services) or to set limit for the bandwidth (set speed limit) that can be used by P2P traﬃc. The settings will be applied to all clients of P2P networks detected by P2P Eliminator.

Use the Services button to open a dialog where services which will be allowed can be speciﬁed. All services deﬁned in Conﬁguration → Deﬁnitions → Services are available (for details, refer to chapter 12.3).

Check the Inform user by email option if you wish that users at whose hosts P2P net- works are detected will be warned and informed about actions to be taken (blocking of all traﬃc / time-limited restrictions for certain services and length of the period for which restrictions will be applied). The email is sent only if a valid email address (see chapter 13.1) is speciﬁed in the particular user account. This option does not apply to unauthenticated users.

Use the Block traﬃc for ... minutes parameter to specify the length of time during which traﬃc will be blocked for the particular host. The P2P Eliminator module enables traﬃc for this user automatically when the speciﬁed time expires. The time of disconnection should be long enough to make the user consider consequences and to stop trying to connect to P2P networks.

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Kerio Tech Firewall6 manual Advanced security features, 214

Contents

Administrator’s Guide Kerio TechnologiesPage Contents 113 Remote Administration and Update Checks 209 Kerio Clientless SSL-VPN 355 393 Quick Checklist Page Introduction Basic FeaturesKerio WinRoute Firewall Additional Features Kerio WinRoute Firewall Email alerts Antivirus controlTransparent support for Active Directory User quotas Collision of low-level drivers Conﬂicting softwareClientless SSL-VPN Port collision Antivirus applications Steps to be taken before the installation InstallationInstallation System requirements Installation and Basic Conﬁguration Guide Custom installation selecting optional components Protection of the installed product Conﬂicting Applications and System Services WinRoute Firewall Engine WinRoute ComponentsWinRoute Engine Monitor WinRoute Engine Monitor Kerio Administration ConsoleWinRoute Engine Monitor Upgrade and Uninstallation Uninstallation Upgrade and UninstallationTypically the path C\Program Files\Kerio\WinRoute Firewall Setting of administration username and password Upgrade from WinRoute ProUpdate Checker Conﬁguration Wizard Enable remote access Remote AccessRemote IP address Initial conﬁguration Allowing remote administration WinRoute Administration Administration Window File WinRoute AdministrationAdministration Window Main menu Help menu Status bar Administration WindowDetection of WinRoute Firewall Engine connection drop-out View Settings Column customization in Interfaces View Settings License types and number of users Product Registration and LicensingLicense types optional components License types and number of users Deciding on a number of users licenses Copyright License informationProduct Homepage Product expiration date License IDSubscription expiration date Number of users Registration of the product in the Administration Console Registration of the trial version Registration of the product in the Administration Console Trial version registration security code Trial version registration other information Registration of the purchased product Trial version registration Trial ID Product Registration and Licensing Registration of the product in the Administration Console 10 Product registration user information Update of registration information 12 Product registration summary Subscription / Update Expiration Product registration at the website Subscription / Update Expiration Bubble alerts User counter 15 The notice that the subscription has already expired Start WinRoute User counterLicense counter License release Interface Settings for Interfaces and Network ServicesNetwork interfaces IP Address and Mask Add Dial or Hang Up /Enebale, DisableAdapter info Modify Dial-In RefreshSpecial interfaces VPN server Bind this interface Interface type selection Interface name Use login data from the RAS entryUse the following login data RAS Entry Connection Dial-up demand dial Hangup if idle Advanced Connection Failover Edit Interface parameters Connection Failover Connection Failover SetupEnable automatic connection failover Current connection Conﬁguration of primary and secondary Internet connection Secondary connection Primary connectionDial-up Use DNS Forwarder DNS Forwarder conﬁguration DNS Forwarder Enable DNS forwardingDNS forwarding Clear cache Enable cache for faster response of repeated queriesEnable DNS forwarding Use custom forwarding 10 Speciﬁc settings of DNS forwarding Simple DNS resolution 11 DNS forwarding a new rule Before forwarding a query Combine the name ... with DNS domain Dhcp server Dhcp Server Conﬁguration Dhcp serverDeﬁnition of Scopes and Reservations Wins server Lease timeDNS server Domain Description 15 Dhcp server IP scopes deﬁnition Subnet mask First address, Last addressExclusions Parameters Lease Reservations 00bca5f21e50 Bc-a5-f2-1e-50 Leases 20 Dhcp server list of leased and reserved IP addresses Dhcp server advanced options Windows RAS Proxy server Declined options Proxy server Enable non-transparent proxy serverProxy Server Conﬁguration Enable connection to any TCP port 22 Http proxy server settings Forward to parent proxy server Http//192.168.1.13128/pac/proxy.pac Http cache Enable cache on transparent proxyEnable cache on proxy server Http protocol TTL Http cache Cache size Max Http object size Memory cache sizeCache Options URL Speciﬁc Settings URL Cache status and administration TTL 26 Http cache administration dialog Traﬃc Policy Network Rules Wizard Information Network Rules WizardSelection of Internet connection type Network adapter or dial-up selection Network Policy Wizard selection of a connected adapter Internet access limitations Allow access to all services Allow access to the following services only Enabling Kerio VPN traﬃc Service is running on Service NAT Generating the rules Rules Created by the Wizard Icmp traﬃc Local Traﬃc Firewall Traﬃc Deﬁnition of Custom Traﬃc Rules How traﬃc rules workName Source, Destination 12 Traﬃc rule name, color and rule description IP range e.g Deﬁnition of Custom Traﬃc Rules Service 100 Action 101 Log 102 Translation 103 104 20 Traﬃc rule destination address translation Protocol inspector Valid on105 Source Basic Traﬃc Rule TypesIP Translation NAT Destination Port mapping TranslationPlacing the rule 107 108 Multihoming Limiting Internet Access109 110 Exclusions 111 112 Bandwidth Limiter How the bandwidth limiter works and how to use itSpeed limits for big data volumes transmissions Speed limits for users with their quota exceeded Bandwidth Limiter Setting limit valuesBandwidth Limiter conﬁguration 114 Advanced Options Services115 IP Addresses and Time Interval 116 Bandwidth Limiter selection of network services 117 Detection of connections with large data volume transferred 118 Examples Detection of connections with large data volume transferred119 120 Firewall User Authentication User Authentication121 User authentication advanced options User Authentication122 Enable non-transparent proxy server authentication Firewall User AuthenticationRedirection to the authentication Automatic authentication Ntlm Automatically logout users when they are inactive 124 Web Interface Enable Kerio SSL-VPN serverEnable Web Interface Http Web Interface Parameters Conﬁguration Web Interface Enable secured Web Interface HttpsAllow access only from these IP addresses WinRoute server name Conﬁguration of ports of the Web Interface 127 Generate or Import Certiﬁcate SSL Certiﬁcate for the Web Interface128 129 SSL certiﬁcate of WinRoute’s Web interface Users logged Login/logoutWeb Interface Language Preferences 130 Drdolittle@usoffice.company.com Login/logout131 Log out User password authentication132 Status information and user statistics Status information and user statistics133 User preferences 134 User preferences Save settings135 10 Editing user password 136 FTP protocol Http protocol137 URL Rules Conditions for Http and FTP ﬁltering138 URL Rules 139 URL Rules Deﬁnition 140 URL matches criteria If user accessing the URL is141 Allow access to the Web site 142 Valid if Mime type is Valid at time intervalValid for IP address group Denial options Deny Web pages containing WWW content scanning optionsScan content for viruses according to scanning rules 144 Http Inspection Advanced Options 145 Allow Script Html tags Global rules for Web elementsAllow Html ActiveX objects 146 Allow applet Html tags Content Rating System ISS OrangeWeb FilterAllow Html JavaScript pop-up windows Allow cross-domain referrer ISS OrangeWeb Filter conﬁguration 148 Server Enable ISS OrangeWeb FilterCategorize each page regardless of Http rules ISS OrangeWeb Filter Deployment 150 ISS OrangeWeb Filter rule Web content ﬁltering by word occurrence 151 Deﬁnition of rules ﬁltering by word occurrence 152 Word groups 153 Deﬁnition of forbidden words 154 Group WeightFTP Policy Keyword FTP server is If user accessing the FTP server isFTP Rules Deﬁnition 156 15 FTP Rule basic parameters Content 158 159 Conditions and limitations of antivirus scan Antivirus control160 Conditions and limitations of antivirus scan 161 Integrated McAfee How to choose and setup antivirusesAntivirus control 162 Update now Check for update every ... hoursLast update check performed ... ago Current virus database is External antivirus Antivirus settings164 165 An example of a traﬃc rule for outgoing Smtp traﬃc check Http and FTP scanning Http and FTP scanning 167 Condition Http and FTP scanning rules168 Mime type 169 Email scanning 170 Email scanning 171 172 Creating and Editing IP Address Groups IP Address Groups173 Name Time IntervalsDeﬁnitions Type Weekly Time range typesAbsolute Daily Valid at days Time Interval TypeFrom, To 176 Services Services177 Protocol inspector Protocol178 Protocol Inspectors Source Port and Destination Port179 URL Groups 180 URL Groups 181 Deﬁnitions Group 182 Import of user accounts from Active Directory User Accounts and GroupsInternal user database 183 User Accounts and Groups Viewing and deﬁnitions of user accounts184 Local user accounts Edit User Local user accountsAccounts mapped from the Active Directory domain 186 Basic information Local user accountsCreating a local user account Full Name Email Address AuthenticationAccount is disabled Domain template Groups NT domain / Kerberos189 Access rights 190 Full access to administration No access to administrationRead only access to administration User can override WWW content rules Transfer quota Data transmission quota192 Quota exceed action Content rules193 User’s IP addresses 194 Editing User Account 195 NT domain Active Directory196 Automatic import of user accounts from Active Directory 197 Manual import of user accounts 198 Domain mapping requirements Active Directory domains mappingActive Directory domains mapping 199 Active Directory mapping Domain AccessSingle domain mapping 200 201 13 Active Directory domain mapping Multiple domains mapping NT authentication support202 203 16 Conversion of user accounts User groups Deﬁnitions User groups204 Name and description of the group User groupsCreating a new local user group 205 Group members Group access rightsRead only access 206 Users can connect using VPN Users can override WWW content rules207 Users are allowed to view statistics Users are allowed to use P2P networks208 How to allow remote administration from the Internet Remote Administration and Update ChecksSetting Remote Administration 209 Remote Administration and Update Checks Update Checking210 Check also for beta versions Update CheckingCheck for new versions Check now 212 P2P Eliminator Conﬁguration Advanced security features15.1 P2P Eliminator 213 Advanced security features 214 Parameters for detection of P2P networks 15.1 P2P Eliminator215 Special Security Settings 216 Connections Count Limit Special Security SettingsAnti-Spooﬁng 217 Enable pass-through only for hosts VPN using IPSec ProtocolEnable IPSec preferences IPSec client in local network VPN using IPSec ProtocolWinRoute’s IPSec conﬁguration 219 220 Traﬃc rule for one IPSec client in the local network IPSec server in local network 221 Other settings Routing table Static routes Routing tableRoute Types 223 Gateway Deﬁnitions of Dynamic and Static RulesNetwork, Network Mask Metric Removing routes from the Routing Table Demand DialDemand Dial How demand dial works 226 Technical Peculiarities and Limitations 227 Setting Rules for Demand Dial 228 Dial of local DNS names 229 Universal Plug-and-Play UPnP Enable UPnPPort mapping timeout Conﬁguration of the UPnP support Log packets Relay Smtp serverRelay Smtp server Log connections Test Smtp requires authenticationSpecify sender email address in From header 232 233 Active hosts and connected users Status Information234 Hostname Login timeLogin duration User Active Hosts dialog options Detailed information on a selected host and user Traﬃc information 238 Connections Activity Description239 Source, Destination 240 Histogram 241 Show connections related to the selected process 242 Show connections related to the selected process 243 Kill connection Options of the Connections Dialog244 Background Color Color SettingsFont Color 245 Alerts Alerts Settings246 Alert Alerts247 Alert Templates 248 Alerts overview in Administration Console \Program Files\Kerio\WinRoute Firewall\templates by default249 250 13 Details of a selected event Interface statistics Basic statistics251 Interface Statistics menu Reset interface statisticsBasic statistics 252 Graphical view of interface load Interface statisticsRemove interface statistics 253 User Statistics data volumes and quotas 254 User Statistics dialog options User Statistics data volumes and quotas255 View host Reset user statisticsRemove user statistics 256 Monitoring and storage of statistic data Kerio StaR statistics and reporting257 Requirements of the statistics Settings for statistics and quotaKerio StaR statistics and reporting 258 Advanced settings for statistics Settings for statistics and quotaEnable/disable gathering of statistic data 259 Statistics and quota restrictions 260 Connection to StaR and viewing statistics Accessing the statistics from the WinRoute hostRemote access to the statistics Statistics and quota accounting periods StaR page in the web interface 262 Accounting period 263 264 Custom accounting period Overall View Overall View265 Top 5 users Top Requested Web Categories266 Used Protocol 267 268 User statistics User statistics269 Users by Traﬃc 13 The Users by Traﬃc table Top Visited Websites Top Visited Websites Top Requested Web Categories 272 273 16 Top visited websites sorted by categories 274 Filename.log Log settingsLogs 275 File Logging 276 Syslog Logging Log settings277 Logs Context Menu Highlighting Logs Context MenuFind Select font Clear log Logs EncodingLog debug Log highlighting Log highlighting settings Debug log advanced settings 282 Alert Log Alert Log Logs 20.4 Conﬁg Log284 Connection Log Connection Log285 Dial Log Debug Log286 Page 15/Mar/2004 155912 Line Connection disconnected 288 Error Log Error Log289 Filter Log ’McAfee update’ rule name290 Http log Http log291 1058444114.733 0 192.168.64.64 TCPMISS/304 292 Security Log Security Log293 Authentication service Client IP address reason 294 17/Dec/2004 121133 Engine Startup Sslvpn LogSslvpn Log 17/Dec/2004 122243 Engine Shutdown Web Log 24/Apr/2003 102951 192.168.44.128 james Web Log 297 Kerio VPN 298 VPN Server Conﬁguration 299 General Enable VPN serverKerio VPN IP address assignment SSL certiﬁcate 301 Listen on port Advanced302 Custom Routes 303 Basic conﬁguration of traﬃc rules for VPN clients 21.2 Conﬁguration of VPN clients304 Name of the tunnel Setting up VPN serversDeﬁnition of a tunnel to a remote server 305 Conﬁguration 306 Conﬁguration of a remote end of the tunnel 307 Routing settings DNS Settings308 Connection establishment 309 Traﬃc Policy Settings for VPN 310 Routing conﬁguration options Exchange of routing informationExchange of routing information 311 Routes provided automatically Update of routing tables312 Speciﬁcation Example of Kerio VPN conﬁguration company with a ﬁlial oﬃce313 Common method 314 315 Headquarters conﬁguration 316 14 Headquarter creating default traﬃc rules for Kerio VPN 317 318 16 Headquarter DNS forwarder conﬁguration 319 320 19 Headquarters VPN server conﬁguration LAN 321 Conﬁguration of a ﬁlial oﬃce 322 24 Filial oﬃce default traﬃc rules for Kerio VPN 323 324 25 Filial oﬃce DNS forwarder conﬁguration 325 326 28 Filial oﬃce VPN server conﬁguration 327 29 Filial oﬃce deﬁnition of VPN tunnel for the headquarters VPN test Example of a more complex Kerio VPN conﬁguration328 Common method 329 330 331 33 Headquarter creating default traﬃc rules for Kerio VPN 332 333 35 Headquarter DNS forwarder conﬁguration Kerio VPN 335 38 Headquarters VPN server conﬁguration 336 39 Headquarter deﬁnition of VPN tunnel for the London ﬁlial 337 338 339 43 Headquarter ﬁnal traﬃc rules Conﬁguration of the London ﬁlial 340 46 The London ﬁlial oﬃce default traﬃc rules for Kerio VPN 341 48 The London ﬁlial oﬃce DNS forwarding settings 342 343 344 345 346 54 The London ﬁlial oﬃce ﬁnal traﬃc rules Conﬁguration of the Paris ﬁlial 347 348 57 The Paris ﬁlial oﬃce DNS forwarder conﬁguration 349 59 The Paris ﬁlial oﬃce VPN server conﬁguration 350 351 352 353 64 The Paris ﬁlial oﬃce ﬁnal traﬃc rules 354 SSL-VPN conﬁguration Kerio Clientless SSL-VPN22.1 Conﬁguration of WinRoute’s SSL-VPN 355 Kerio Clientless SSL-VPN Allowing access from the Internet356 Https//server Usage of the SSL-VPN interfaceUsage of the SSL-VPN interface Https//server12345 Handling ﬁles and folders Sidneywashington@usoffice.company.com358 Bookmarks \\server\folder\subfolderAntivirus control 359 Detection of incorrect conﬁguration of the default gateway Troubleshooting360 23.2 Conﬁguration Backup and Transfer Cache.CFS SslcertLicense Dnscache.cfg Star Handling conﬁguration ﬁles Conﬁguration backup recovery363 List name=Interfaces General conditions Automatic user authentication using Ntlm365 WinRoute Conﬁguration 366 Web browsers Automatic user authentication using NtlmNtlm authentication process Microsoft Internet Explorer Firefox/Netscape/Mozilla/SeaMonkey conﬁguration Firefox/Netscape/Mozilla/SeaMonkey368 Partial Retirement of Protocol Inspector Partial Retirement of Protocol Inspector369 User accounts and groups in traﬃc rules How to enable certain users to access the Internet370 Enabling automatic authentication 371 Example of a client conﬁguration web browser FTP on WinRoute’s proxy server372 FTP on WinRoute’s proxy server Example of a client conﬁguration Total Commander373 12 Setting proxy server for FTP in Total Commander 374 Network Conﬁguration Network Load BalancingBasic Information and System Requirements 375 Network Load Balancing 376 NLB conﬁguration for Server1 24.3 Conﬁguration of the servers in the cluster377 378 Server 1 cluster parameters NLB conﬁguration for Server2 379 Description Technical supportEssential Information 380 Informational File Error Log FilesTested in Beta version License type and license number United Kingdom ContactsCzech Republic Legal Presumption OpenSSL Used open-source librariesLibiconv 384 Zlib PrototypeCopyright 2005 Sam Stephenson 385 ActiveX Default gatewayGlossary of terms Cluster Greylisting Firewall387 Kerberos Glossary of terms IP addressIPSec 388 Packet Network adapterP2P network Port Routing table Glossary of termsProxy server Script Spooﬁng 391 TCP/IP 392 Index 393 Index 394 Ntlm 395 VPN 396 133 397