IOSライクなのでそんなに変わってはいない。ワークブックの問題では次の21パターンあれば十分対応できるとおもう(細かいパラメータは別)。意外と覚えるのが少ないと気づく。大雑把言えば、ユーザシグネチャの設定ができてちゃんとIDSに追加できて、さらにイベントをモニタリングできればOK。IDSセクションはそんなに難易度高い気はしないので全問正解できないと合格はないとおもう。
1.Changing the Hostname
sensor# configure terminal
sensor(config)# service host
sensor(config-hos)# network-settings
sensor(config-hos-net)# host-name firesafe
2.Changing the IP Address, Netmask, and Gateway
sensor# configure terminal
sensor(config)# service host
sensor(config-hos)# network-settings
sensor(config-hos-net)# host-ip 10.89.146.110/24,10.89.146.254
3.Enabling and Disabling Telnet
sensor# configure terminal
sensor(config)# service host
sensor(config-hos)# network-settings
sensor(config-hos-net)# telnet-option enabled
4.Changing the Access List
sensor# configure terminal
sensor(config)# service host
sensor(config-hos)# network-settings
sensor(config-hos-net)# access-list 10.89.146.110/32
5.Adding a Login Banner
sensor# configure terminal
sensor(config)# service host
sensor(config-hos)# network-settings
sensor(config-hos-net)# login-banner-text This is the banner login text message.
6.Changing Web Server Settings
sensor# configure terminal
sensor(config)# service web-server
sensor(config-web)# port 8080
sensor(config-web)# enable-tls true
7.Configuring Inline VLAN Pairs
sensor# configure terminal
sensor(config)# service interface
sensor(config-int)# physical-interfaces GigabitEthernet0/2
sensor(config-int-phy)# admin-state enabled
sensor(config-int-phy)# subinterface-type inline-vlan-pair
sensor(config-int-phy-inl)# subinterface 1
sensor(config-int-phy-inl-sub)# vlan1 52
sensor(config-int-phy-inl-sub)# vlan2 53
8.Configuring Interfaces for the Virtual Sensor
sensor# configure terminal
sensor(config)# service analysis-engine
sensor(config-ana)# virtual-sensor vs0
sensor(config-ana-vir)# physical-interface GigabitEthernet2/0
9.Configuring the Event Action Rules
sensor# configure terminal
sensor(config)# service event-action-rules rules0
sensor(config-rul)# target-value target-value-setting mission-critical
target-address 10.89.130.108
sensor(config-rul)# overrides deny-attacker-inline
sensor(config-rul-ove)# risk-rating-range 85-100
sensor(config-rul-ove)# override-item-status enabled
10.Configuring Event Action Filters
sensor# configure terminal
sensor(config)# service event-action-rules rules0
sensor(config-rul)# filters insert name1 begin
sensor(config-rul-fil)# signature-id-range 1000-1005
sensor(config-rul-fil)# subsignature-id-range 1-5
sensor(config-rul-fil)# attacker-address-range 10.89.10.10-10.89.10.23
sensor(config-rul-fil)# victim-address-range 192.56.10.1-192.56.10.255
sensor(config-rul-fil)# victim-port-range 0-434
sensor(config-rul-fil)# risk-rating-range 85-100
sensor(config-rul-fil)# actions-to-remove reset-tcp-connection
sensor(config-rul-fil)# deny-attacker-percentage 90
sensor(config-rul-fil)# filter-item-status enabled
11.Configuring Alert Frequency
sensor# configure terminal
sensor(config)# service signature-definition sig0
sensor(config-sig)# signatures 9000 0
sensor(config-sig-sig)# alert-frequency
sensor(config-sig-sig-ale)# summary-mode fire-once
sensor(config-sig-sig-ale-fir)# specify-global-summary-threshold yes
sensor(config-sig-sig-ale-fir-yes)# global-summary-threshold 3000
sensor(config-sig-sig-ale-fir-yes)# summary-interval 5000
sensor(config-sig-sig-ale-fir-yes)# exit
sensor(config-sig-sig-ale-fir)# summary-key AxBx
12.Configuring Alert Severity
sensor# configure terminal
sensor(config)# service signature-definition sig0
sensor(config-sig)# signatures 9000 0
sensor(config-sig-sig)# alert-severity medium
13.Configuring Signature Fidelity Rating
sensor# configure terminal
sensor(config)# service signature-definition sig0
sensor(config-sig)# signatures 12000 0
sensor(config-sig-sig)# sig-fidelity-rating 50
14.Configuring the Status of Signatures
sensor# configure terminal
sensor(config)# service signature-definition sig0
sensor(config-sig)# signatures 12000 0
sensor(config-sig-sig)# status
sensor(config-sig-sig-sta)# enabled true
15.Assigning Actions to Signatures
sensor# configure terminal
sensor(config)# service signature-definition sig0
sensor(config-sig)# signatures 1200 0
sensor(config-sig-sig)# engine normalizer
sensor(config-sig-sig-nor)# event-action produce-alert|request-snmp-trap
16.Creating Custom Signatures
sensor# configure terminal
sensor(config)# service signature-definition sig0
sensor(config-sig)# signatures 60025 0
sensor(config-sig-sig)# engine string-tcp
sensor(config-sig-sig-str)# service-ports 23
sensor(config-sig-sig-str)# direction to-service
sensor(config-sig-sig-str)# regex-string This-is-my-new-Sig-regex
17.Configuring Blocking Properties
sensor# configure terminal
sensor(config)# service network-access
sensor(config-net)# general
sensor(config-net-gen)# block-max-entries 100
sensor(config-rul-gen)# global-block-timeout 60
sensor(config-net-gen)# max-interfaces 50
sensor(config-net-gen)# never-block-hosts 10.16.0.0
18.Configuring User Profiles
sensor# configure terminal
sensor(config)# service network-access
sensor(config-net)# user-profiles PROFILE1
sensor(config-net-use)# username username
sensor(config-net-use)# password
Enter password[]: ********
Re-enter password ********
sensor(config-net-use)# enable-password
Enter enable-password[]: ********
Re-enter enable-password ********
19.Configuring Blocking and Rate Limiting Devices
sensor# configure terminal
sensor(config)# service network-access
sensor(config-net)# router-devices ip_address
sensor(config-net-rou)# profile-name user_profile_name
sensor(config-net-rou)# communication ssh-3des
sensor(config-net-rou)# block-interfaces interface_name in
20.Configuring SNMP
sensor# configure terminal
sensor(config)# service notification
sensor(config-not)# enable-set-get true
sensor(config-not)# read-only-community PUBLIC1
sensor(config-not)# read-write-community PRIVATE1
sensor(config-not)# system-contact BUSINESS
sensor(config-not)# system-location AUSTIN
sensor(config-not)# snmp-agent-port 161
sensor(config-not)# snmp-agent-protocol udp
21.Configuring SNMP Traps
sensor# configure terminal
sensor(config)# service notification
sensor(config-not)# enable-notifications true
sensor(config-not)# error-filter error
sensor(config-not)# enable-detail-traps true
sensor(config-not)# trap-community-name TRAP1
sensor(config-not)# trap-destinations 10.1.1.1
sensor(config-not-tra)# trap-port 162
sensor(config-not-tra)# trap-community-name AUSTIN_PUBLI
PR