Index

tutorials 107

U

UDP 561 decoder 475, 483 decoy portscan 480 distributed portscan 480 flood attack 483 messages 561

port numbers 562 portscan 479 portsweep 480

u-encoding attack 484 UltraVNC 616 undersize-len attack 485 undersize-offset attack 485 unreachables (ICMP) 480 unsafe web pages 498 unsolicited commercial e-mail 521

upgrading firmware 700 licenses 215

uploading configuration files 700 firmware 700

shell scripts 702

usage

CPU 169, 171 flash 169 memory 169, 172 onboard flash 169 sessions 169, 173

user accounts

for WLAN 147, 541

user authentication 539 external 540

local user database 575 user awareness 541

User Datagram Protocol, see UDP user group objects 539

user groups 539, 541

and content filtering 487 and firewall 386, 389

and policy routes 303, 304, 462, 464

configuration overview 104

user name rules 542

user objects 539

user portal links 615 logo 434

see SSL user screens 437, 443 user sessions, see sessions

user SSL screens 437, 443 access methods 437 bookmarks 444 certificates 438

login 438 logout 444

required information 438 system requirements 438

User’s Guide 27 user-aware 120

users 539

access, see also access users admin (type) 539

admin, see also admin users and AAA servers 540

and authentication method objects 540 and content filtering 487

and firewall 386, 389 and LDAP 540

and policy routes 303, 304, 462, 464 and RADIUS 540

and service control 645 and shell scripts 553 attributes for Ext-User 540 attributes for LDAP 553 attributes for RADIUS 553 attributes in AAA servers 553 configuration overview 104 currently logged in 169, 175 default lease time 549, 551

default reauthentication time 549, 551 default type for Ext-User 540 ext-group-user (type) 540 Ext-User (type) 540

ext-user (type) 540 groups, see user groups Guest (type) 540 lease time 544 limited-admin (type) 540

 

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ZyWALL USG 20/20W User’s Guide