HOWTO Setup Tripwire: Difference between revisions

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=== Generate a Report ===
=== Generate a Report ===


# tripwire --check
  <font color=red>hostname</font> <font color=blue>~ #</font> '''tripwire --check'''


=== File System Error Messages ===
=== File System Error Messages ===
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To get rid of "File system error." messages where the file or folder does not exist, comment out the culprits from /etc/tripwire/twpol.txt Then, update the policy file, delete and re-init the db:
To get rid of "File system error." messages where the file or folder does not exist, comment out the culprits from /etc/tripwire/twpol.txt Then, update the policy file, delete and re-init the db:


# twadmin --create-polfile -S /etc/tripwire/site.key /etc/tripwire/twpol.txt
  <font color=red>hostname</font> <font color=blue>~ #</font> '''twadmin --create-polfile -S /etc/tripwire/site.key /etc/tripwire/twpol.txt'''
# rm /var/lib/tripwire/$hostname.twd
  <font color=red>hostname</font> <font color=blue>~ #</font> '''rm /var/lib/tripwire/$hostname.twd'''
# tripwire --init
  <font color=red>hostname</font> <font color=blue>~ #</font> '''tripwire --init'''


Now, run a check, followed by an update.  This shifts files around, which will be flagged as "changed" on the next run, so re-run the check/update:
Now, run a check, followed by an update.  This shifts files around, which will be flagged as "changed" on the next run, so re-run the check/update:


# tripwire --check
  <font color=red>hostname</font> <font color=blue>~ #</font> '''tripwire --check'''
# tripwire --update --twrfile /var/lib/tripwire/report/hosname_date_time.twr
  <font color=red>hostname</font> <font color=blue>~ #</font> '''tripwire --update --twrfile /var/lib/tripwire/report/hosname_date_time.twr'''
# tripwire --check
  <font color=red>hostname</font> <font color=blue>~ #</font> '''tripwire --check'''
# tripwire --update --twrfile /var/lib/tripwire/report/hosname_date_time.twr
  <font color=red>hostname</font> <font color=blue>~ #</font> '''tripwire --update --twrfile /var/lib/tripwire/report/hosname_date_time.twr'''


=== After System Changes ===
=== After System Changes ===
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After you emerge packages or change config files:
After you emerge packages or change config files:


# tripwire --update --twrfile /var/lib/tripwire/report/a_previous_integrity_report.twr
  <font color=red>hostname</font> <font color=blue>~ #</font> '''tripwire --update --twrfile /var/lib/tripwire/report/a_previous_integrity_report.twr'''
 
=== Tidying Up ===
 
After a while, the /var/log/tripwire/report/ directory becomes quite large.  At some point, these historical reports are of no value, so they can be deleted.  One guideline might be to blow away anything more than 6 months old.

Revision as of 18:11, 26 October 2006

Setting Up a Tripwire Installation

# emerge tripwire
# cd /etc/tripwire
# tripwire --init
# twadmin --create-polfile twpol.txt
# twadmin --create-polfile -S hostname-local.key twpol.txt

Generate a Report

 hostname ~ # tripwire --check

File System Error Messages

To get rid of "File system error." messages where the file or folder does not exist, comment out the culprits from /etc/tripwire/twpol.txt Then, update the policy file, delete and re-init the db:

 hostname ~ # twadmin --create-polfile -S /etc/tripwire/site.key /etc/tripwire/twpol.txt
 hostname ~ # rm /var/lib/tripwire/$hostname.twd
 hostname ~ # tripwire --init

Now, run a check, followed by an update. This shifts files around, which will be flagged as "changed" on the next run, so re-run the check/update:

 hostname ~ # tripwire --check
 hostname ~ # tripwire --update --twrfile /var/lib/tripwire/report/hosname_date_time.twr
 hostname ~ # tripwire --check
 hostname ~ # tripwire --update --twrfile /var/lib/tripwire/report/hosname_date_time.twr

After System Changes

After you emerge packages or change config files:

 hostname ~ # tripwire --update --twrfile /var/lib/tripwire/report/a_previous_integrity_report.twr

Tidying Up

After a while, the /var/log/tripwire/report/ directory becomes quite large. At some point, these historical reports are of no value, so they can be deleted. One guideline might be to blow away anything more than 6 months old.