HP-UX Host Intrusion Detection System Version 4.3 administrator guide
Table Of Contents
- HP-UX Host Intrusion Detection System Version 4.3 administrator guide
- Table of Contents
- About This Document
- 1 Introduction
- 2 Configuring HP-UX HIDS
- 3 Getting Started with HP-UX HIDS
- 4 Using the System Manager Screen
- Starting the HP-UX HIDS System Manager
- Stopping the HP-UX HIDS System Manager
- System Manager Components
- Starting HP-UX HIDS Agents
- Getting the Status of Agent Hosts
- Resynchronizing Agent Hosts
- Activating Schedules on Agent Hosts
- Stopping Schedules on Agent Hosts
- Halting HP-UX HIDS Agents
- Accessing Other Screens
- 5 Using the Schedule Manager Screen
- The Schedule Manager
- Configuring Surveillance Schedules
- Configuring Surveillance Groups
- Configuring Detection Templates
- Setting Surveillance Schedule Timetables
- Configuring Alert Aggregation
- Configuring Monitor Failed Attempts
- Configuring Duplicate Alert Suppression
- Viewing Surveillance Schedule Details
- Predefined Surveillance Schedules and Groups
- 6 Using the Host Manager Screen
- 7 Using the Network Node Screen
- 8 Using the Preferences Screen
- A Templates and Alerts
- Alert Summary
- UNIX Regular Expressions
- Limitations
- Template Property Types
- Buffer Overflow Template
- Race Condition Template
- Modification of files/directories Template
- Changes to Log File Template
- Creation and Modification of setuid/setgid File Template
- Creation of World-Writable File Template
- Modification of Another User’s File Template
- Login/Logout Template
- Repeated Failed Logins Template
- Repeated Failed su Commands Template
- Log File Monitoring Template
- B Automated Response for Alerts
- C Tuning Schedules and Generating Alert Reports
- D The Agent Configuration File
- E The Surveillance Schedule Text File
- F Error Messages
- G Troubleshooting
- Troubleshooting
- Agent and System Manager cannot communicate with each other
- Agent complains that idds has not been enabled, yet lsdev shows /dev/idds is present
- Agent does not start on system boot
- Agent halts abnormally, leaving ids_* files and message queues
- Agent host appears to hang and/or you see message disk full
- Agent needs further troubleshooting
- Agent does not start after installation
- Agents appear to be stuck in polling status
- Agent displays error if hostname to IP mapping is not registered in name service
- Aggregated alerts targets or details field are truncated and the same aggregated alert has several entries logged in the IDS_ALERTFILE
- Alert date/time sort seems inconsistent
- Alerts are not being displayed in the alert browser
- Buffer overflow triggers false positives
- Duplicate alerts appear in System Manager
- Getting several aggregated alerts for the same process
- GUI runs out of memory after receiving around 19,000 alerts
- The idsadmin Command needs installed agent certificates
- The idsadmin Command notifies of bad certificate when pinging a remote agent
- IDS_checkInstall fails with a kmtune error
- IDS_genAdminKeys or IDS_genAgentCerts does not complete successfully
- IDS_genAdminKeys or idsgui quits early
- Large files in /var/opt/ids
- Log files are filling up
- No Agent Available
- Normal operation of an application generates heavy volume of alerts
- Reflection X rlogin produces multiple login and logout alerts
- Schedule Manager timetable screen appears to hang
- SSH does not perform a clean exit after idsagent is started
- System Manager appears to hang
- System Manager does not let you save files to specific directories
- System Manager does not start after idsgui is started
- System Manager starts with no borders or title bar in X client programs on Windows
- System Manager times out on agent functions such as Activate and Status Poll
- UNKNOWN program and arguments in certain alert messages
- Using HP-UX HIDS with IPFilter and SecureShell
- Unable to Generate Administrator Keys and Agent Certificates on PA–RISC 1.1 Systems
- Troubleshooting
- H HP Software License
Figure 5-15 The Duplicate Alert Suppression Tab
Duplicate Alert Suppression Options
Following are the duplicate alert suppression options:
• Duplicate Alert Suppression
Select or deselect the Duplicate Alert Suppression checkbox to enable or disable duplicate
alert suppression. By default, this property is enabled.
You can also set this property by editing the ids.cf file. Comment out the following entry
in the ids.cf file and set it to 1 (enabled) or 0 (disabled):
# suppression 0
• Generate Suppression Report
Select the Generate Suppression Report checkbox if you want to receive an alert that contains
a summary of all the suppressed duplicate alerts for any given alert. When this checkbox is
selected, an alert summarizing all the duplicate alerts for any given alert is sent to the
alert.log file, the GUI, and the Response programs (located in the rt_response
directory).
NOTE: You receive an alert summarizing all the duplicate alerts only if at least one of the
criteria specified in the Suppression Count or Suppression Interval property is met.
If Duplicate Alert Suppression is selected, but Generate Suppression Report is not, no reports
summarizing duplicate alerts are generated. If you do not want to receive summary alerts,
deselect this checkbox. By default, this property is enabled.
You can also set this property by editing the ids.cf file. Comment out the following entry
in the ids.cf file and set it to 1 (enabled) or 0 (disabled).:
# suppression_report 0
• Suppression Count
Use this property to suppress a specified number of duplicate alerts before the alert is issued
again. To configure the Suppression Count, set the Suppression Count property in the
Duplicate Alert Suppression tab. The default value of this property is 100. This means that
HIDS suppresses the next 100 duplicate alerts (for any given alert) within the specified
Suppression Interval.
Configuring Duplicate Alert Suppression 77