Abstract :
Almost the
same principle is used in computers. If any change is met upon while comparing
the old values to the new ones, or if any data is being manipulated on the
spot, the logs are checked for intrusion and then detected, after which all the
changes can be undone.
Tripwire is
a free and open-source1 software tool. It functions as a host-based intrusion
detection system. It does not concern itself directly with detecting intrusion
attempts in real time at the periphery of a computing system (as in network
intrusion detection systems), but rather looks for and reports on the resultant
changes of state in the computing system under observation .
Intruders usually leave traces of their activities (changes in the system state). Tripwire looks for these by monitoring key attributes of files that should not change—including binary signatures, size, expected changes in size, etc.—and reporting its findings. While useful for detecting intrusions after the event, it can also serve many other purposes, such as integrity assurance, change management, policy compliance, and more.
A Host-based
Intrusion Detection System (HIDS), as a special category of an
Intrusion-Detection System, focuses its monitoring and analysis on the
internals of a computing system rather than on its external interfaces (as a
Network Intrusion Detection System (NIDS) would do)
Tripwire is
a reliable intrusion detection system. It is a software tool that checks to see
what has changed in your system. It mainly monitors the key attribute of your
files; by key attribute we mean the binary signature, size and other related
data. Security and operational stability must go hand in hand; if the user does
not have control over the various operations taking place, then naturally the
security of the system is also compromised. Tripwire has a powerful feature
which pinpoints the changes that has taken place, notifies the administrator of
these changes, determines the nature of the changes and provide you with
information you need for deciding how to manage the change.
Tripwire
Integrity management solutions monitor changes to vital system and
configuration files. Any changes that occur are compared to a snapshot of the
established good baseline. The software detects the changes, notifies the staff
and enables rapid recovery and remedy for changes. All Tripwire installation can
be centrally managed. Tripwire software’s cross platform functionality enables
you to manage thousands of devices across your
infrastructure. Security
not only means protecting your system against various attacks but also means
taking quick and decisive actions when your system is attacked.
First of
all we must find out whether our system is attacked or not, earlier system logs
are certainly handy. You can see evidences of password guessing and other
suspicious activities. Logs are ideal for tracing steps of the cracker as he
tries to penetrate into the system. But who has the time and the patience to
examine the logs on a daily basis??
ADVANTAGES
OF TRIPWIRE
Tripwire
Integrity Management solutions give organizations visibility into service
affecting changes and, in the process, increase security, instill process
accountability, and improve system availability.
Increase
security
Tripwire
software immediately detects and pinpoints unauthorized change-whether
malicious or accidental, initiated externally or internally. Tripwire provides
the only way to know, with certainty, that systems remains uncompromised.
Instill
Accountability
Tripwire
identifies and reports the sources of change, enabling IT to “manage by fact.”
It also captures an audit trail of changes to servers and network devices.
Gain
Visibility
Tripwire
software provides a centralized view of changes across the enterprise
infrastructure and support multiple devices from multiple vendors.
Ensure
Availability
Tripwire
software reduces troubleshooting time, enabling rapid discovery and recovery.
Immediate detection of change enables the fastest possible restoration back to
a desired, good state.
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