Administrator's Guide - Kerio Software Archive

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6 Internet Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 6.1 Persistent connection with a single link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 6.2 Connection with a single leased link - dial on demand . . . . . . . . . . . . . . . . . . . . . 64 6.3 Connection Failover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 6.4 Network Load Balancing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 7 Traffic Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 7.1 Network Rules Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 7.2 How traffic rules work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 7.3 Definition of Custom Traffic Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 7.4 Basic Traffic Rule Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 7.5 Policy routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 7.6 User accounts and groups in traffic rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105 7.7 Partial Retirement of Protocol Inspector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107 7.8 Use of Full cone NAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 7.9 Media hairpinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 8 Firewall and Intrusion Prevention System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112 8.1 Network intrusion prevention system (IPS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112 8.2 MAC address filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116 8.3 Special Security Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118 8.4 P2P Eliminator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 9 Configuration of network services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124 9.1 DNS module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124 9.2 DHCP server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131 9.3 Dynamic DNS for public IP address of the firewall . . . . . . . . . . . . . . . . . . . . . . . 142 9.4 Proxy server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144 9.5 HTTP cache . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147 10 Bandwidth Limiter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153 10.1 How the bandwidth limiter works and how to use it . . . . . . . . . . . . . . . . . . . . . 153 10.2 Bandwidth Limiter configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153 10.3 Detection of connections with large data volume transferred . . . . . . . . . . . . 158 11 User Authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160 11.1 Firewall User Authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160 12 Web Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164 12.1 Web interface and certificate settings information . . . . . . . . . . . . . . . . . . . . . . . 164 12.2 User authentication at the web interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167 4
13 HTTP and FTP filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169 13.1 Conditions for HTTP and FTP filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170 13.2 URL Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170 13.3 Content Rating System (<strong>Kerio</strong> Web Filter) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177 13.4 Web content filtering by word occurrence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181 13.5 FTP Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185 14 Antivirus control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190 14.1 Conditions and limitations of antivirus scan . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190 14.2 How to choose and setup antiviruses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191 14.3 HTTP and FTP scanning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195 14.4 Email scanning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199 14.5 Scanning of files transferred via Clientless SSL-VPN (Windows) . . . . . . . . . . . 202 15 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204 15.1 IP Address Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204 15.2 Time Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205 15.3 Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207 15.4 URL Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211 16 User Accounts and Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214 16.1 Viewing and definitions of user accounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215 16.2 Local user accounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217 16.3 Local user database: external authentication and import of accounts . . . . . 227 16.4 User accounts in Active Directory — domain mapping . . . . . . . . . . . . . . . . . . . 229 16.5 User groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235 17 Administrative settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239 17.1 System configuration (<strong>Software</strong> Appliance / VMware Virtual Appliance) . . 239 17.2 Setting Remote Administration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240 17.3 Update Checking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241 18 Other settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244 18.1 Routing table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244 18.2 Universal Plug-and-Play (UPnP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247 18.3 Relay SMTP server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249 19 Status Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251 19.1 Active hosts and connected users . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251 19.2 Network connections overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258 19.3 List of connected VPN clients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262 19.4 Alerts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263 5
Page 1 and 2: Kerio Control Administrator’s Gui
Page 3: Contents 1 Quick Checklist . . . .
Page 7 and 8: 26 Technical support . . . . . . .
Page 9 and 10: 8. Enable the intrusion prevention
Page 11 and 12: 2.2 Conflicting software Warning: S
Page 13 and 14: 2.3 System requirements met). 2.3 S
Page 15 and 16: 2.4 Installation - Windows • TCP/
Page 17 and 18: 2.4 Installation - Windows Warning:
Page 19 and 20: 2.5 Initial configuration wizard (W
Page 21 and 22: 2.6 Upgrade and Uninstallation - Wi
Page 23 and 24: 2.7 Installation - Software Applian
Page 25 and 26: 2.7 Installation - Software Applian
Page 27 and 28: 2.10 Kerio Control Engine Monitor (
Page 29 and 30: 2.11 The firewall’s console (Soft
Page 31 and 32: 3.1 Kerio Control Administration we
Page 33 and 34: 3.2 Administration Console - the ma
Page 35 and 36: 3.3 Administration Console - view p
Page 37 and 38: Chapter 4 License and Registration
Page 39 and 40: 4.3 License information User is def
Page 41 and 42: 4.4 Registration of the product in
Page 49 and 50: 4.6 Subscription / Update Expiratio
Page 51 and 52: Chapter 5 Network interfaces Kerio
Page 53 and 54: 5.3 Viewing and editing interfaces
Page 55 and 56:
5.3 Viewing and editing interfaces
Page 57 and 58:
5.5 Advanced dial-up settings Figur
Page 59 and 60:
5.6 Supportive scripts for link con
Page 61 and 62:
6.1 Persistent connection with a si
Page 63 and 64:
6.1 Persistent connection with a si
Page 65 and 66:
6.2 Connection with a single leased
Page 67 and 68:
6.3 Connection Failover Advanced di
Page 69 and 70:
6.3 Connection Failover Figure 6.8
Page 71 and 72:
6.4 Network Load Balancing Note: 1.
Page 73 and 74:
6.4 Network Load Balancing On the t
Page 75 and 76:
6.4 Network Load Balancing Hint: Sp
Page 77 and 78:
Chapter 7 Traffic Policy Traffic Ru
Page 79 and 80:
7.1 Network Rules Wizard Step 4 —
Page 81 and 82:
7.1 Network Rules Wizard Figure 7.5
Page 83 and 84:
7.1 Network Rules Wizard Note: In t
Page 85 and 86:
7.3 Definition of Custom Traffic Ru
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7.4 Basic Traffic Rule Types Do not
Page 99 and 100:
7.4 Basic Traffic Rule Types Figure
Page 101 and 102:
7.4 Basic Traffic Rule Types Transl
Page 103 and 104:
7.5 Policy routing 7.5 Policy routi
Page 105 and 106:
7.6 User accounts and groups in tra
Page 107 and 108:
7.7 Partial Retirement of Protocol
Page 109 and 110:
7.8 Use of Full cone NAT as possibl
Page 111 and 112:
7.9 Media hairpinning the port of t
Page 113 and 114:
8.1 Network intrusion prevention sy
Page 115 and 116:
8.1 Network intrusion prevention sy
Page 117 and 118:
8.2 MAC address filtering Figure 8.
Page 119 and 120:
8.3 Special Security Settings Anti-
Page 121 and 122:
8.4 P2P Eliminator Figure 8.5 Detec
Page 123 and 124:
8.4 P2P Eliminator The Define servi
Page 125 and 126:
9.1 DNS module of the firewall’s
Page 127 and 128:
9.1 DNS module Figure 9.2 Editor of
Page 129 and 130:
9.1 DNS module Figure 9.3 Specific
Page 131 and 132:
9.2 DHCP server If the Do not forwa
Page 133 and 134:
9.2 DHCP server Figure 9.5 DHCP ser
Page 135 and 136:
Page 137 and 138:
Page 139 and 140:
9.2 DHCP server Leases IP scopes ca
Page 141 and 142:
9.2 DHCP server Figure 9.13 DHCP se
Page 143 and 144:
9.3 Dynamic DNS for public IP addre
Page 145 and 146:
9.4 Proxy server Proxy Server Confi
Page 147 and 148:
9.5 HTTP cache Note: The configurat
Page 149 and 150:
9.5 HTTP cache other objects can be
Page 151 and 152:
9.5 HTTP cache TTL TTL of objects m
Page 153 and 154:
Chapter 10 Bandwidth Limiter The ma
Page 155 and 156:
10.2 Bandwidth Limiter configuratio
Page 157 and 158:
10.2 Bandwidth Limiter configuratio
Page 159 and 160:
10.3 Detection of connections with
Page 161 and 162:
11.1 Firewall User Authentication T
Page 163 and 164:
11.1 Firewall User Authentication a
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
Page 173 and 174:
13.2 URL Rules for example a rule a
Page 175 and 176:
13.2 URL Rules • A page informing
Page 177 and 178:
13.3 Content Rating System (Kerio W
Page 179 and 180:
13.3 Content Rating System (Kerio W
Page 181 and 182:
13.4 Web content filtering by word
Page 183 and 184:
13.4 Web content filtering by word
Page 185 and 186:
13.5 FTP Policy Weight Word weight
Page 187 and 188:
13.5 FTP Policy Open the General ta
Page 189 and 190:
13.5 FTP Policy Scan content for vi
Page 191 and 192:
14.2 How to choose and setup antivi
Page 193 and 194:
14.2 How to choose and setup antivi
Page 195 and 196:
14.3 HTTP and FTP scanning Warning:
Page 197 and 198:
14.3 HTTP and FTP scanning Use the
Page 199 and 200:
14.4 Email scanning If only an aste
Page 201 and 202:
14.4 Email scanning Figure 14.9 Set
Page 203 and 204:
14.5 Scanning of files transferred
Page 205 and 206:
15.2 Time Ranges Figure 15.2 IP gro
Page 207 and 208:
15.3 Services Figure 15.4 Time rang
Page 209 and 210:
15.3 Services Protocol The communic
Page 211 and 212:
15.4 URL Groups Note: 1. Generally,
Page 213 and 214:
15.4 URL Groups Examples:: • www.
Page 215 and 216:
16.1 Viewing and definitions of use
Page 217 and 218:
16.2 Local user accounts Accounts m
Page 219 and 220:
16.2 Local user accounts Name Usern
Page 221 and 222:
16.2 Local user accounts Step 3 —
Page 223 and 224:
16.2 Local user accounts Figure 16.
Page 225 and 226:
16.2 Local user accounts Within thi
Page 227 and 228:
16.3 Local user database: external
Page 229 and 230:
16.4 User accounts in Active Direct
Page 231 and 232:
Page 233 and 234:
Page 235 and 236:
16.5 User groups Note: In case of u
Page 237 and 238:
16.5 User groups Using the Add and
Page 239 and 240:
Chapter 17 Administrative settings
Page 241 and 242:
17.3 Update Checking Figure 17.2 Tr
Page 243 and 244:
17.3 Update Checking Last update ch
Page 245 and 246:
18.1 Routing table Route Types The
Page 247 and 248:
18.2 Universal Plug-and-Play (UPnP)
Page 249 and 250:
18.3 Relay SMTP server 18.3 Relay S
Page 251 and 252:
Chapter 19 Status Information Kerio
Page 253 and 254:
19.1 Active hosts and connected use
Page 255 and 256:
Page 257 and 258:
Page 259 and 260:
19.2 Network connections overview
Page 261 and 262:
19.2 Network connections overview F
Page 263 and 264:
19.4 Alerts • Session duration.
Page 265 and 266:
19.4 Alerts • Connection failover
Page 267 and 268:
19.4 Alerts Click an event to view
Page 269 and 270:
20.1 Volume of transferred data and
Page 271 and 272:
20.2 Interface statistics Figure 20
Page 273 and 274:
20.2 Interface statistics Figure 20
Page 275 and 276:
21.1 Monitoring and storage of stat
Page 277 and 278:
21.2 Settings for statistics and qu
Page 279 and 280:
21.3 Connection to StaR and viewing
Page 281 and 282:
21.3 Connection to StaR and viewing
Page 283 and 284:
22.1 Log settings Figure 22.1 Log s
Page 285 and 286:
22.1 Log settings Figure 22.3 Syslo
Page 287 and 288:
22.2 Logs Context Menu • Target f
Page 289 and 290:
22.3 Alert Log Figure 22.7 Highligh
Page 291 and 292:
22.5 Connection Log A typical examp
Page 293 and 294:
22.6 Debug Log The expression must
Page 295 and 296:
22.7 Dial Log 3. Disconnection caus
Page 297 and 298:
22.9 Filter Log • 8000-8099 — H
Page 299 and 300:
22.10 Http log Packet log example:
Page 301 and 302:
22.11 Security Log An example of Ht
Page 303 and 304:
22.11 Security Log Example: [17/Jul
Page 305 and 306:
22.13 Warning Log Events causing di
Page 307 and 308:
Chapter 23 Kerio VPN Kerio Control
Page 309 and 310:
23.1 VPN Server Configuration Figur
Page 311 and 312:
23.1 VPN Server Configuration the V
Page 313 and 314:
23.1 VPN Server Configuration Kerio
Page 315 and 316:
23.3 Interconnection of two private
Page 317 and 318:
Page 319 and 320:
Page 321 and 322:
23.4 Exchange of routing informatio
Page 323 and 324:
23.5 Example of Kerio VPN configura
Page 325 and 326:
Page 327 and 328:
Page 329 and 330:
Page 331 and 332:
Page 333 and 334:
Page 335 and 336:
23.6 Example of a more complex Keri
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Page 347 and 348:
Page 349 and 350:
Page 351 and 352:
Page 353 and 354:
Page 355 and 356:
Page 357 and 358:
Page 359 and 360:
Page 361 and 362:
24.1 Kerio Control SSL-VPN configur
Page 363 and 364:
Chapter 25 Specific settings and tr
Page 365 and 366:
25.3 Automatic user authentication
Page 367 and 368:
25.3 Automatic user authentication
Page 369 and 370:
25.4 FTP over Kerio Control proxy s
Page 371 and 372:
25.5 Internet links dialed on deman
Page 373 and 374:
Page 375 and 376:
Page 377 and 378:
The text file will be stored in the
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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