Juniper STRM 2008-2 - TECHNICAL NOTE CHANGING NETWORK SETTING... Istruzioni per il montaggio

Release 2008.2

JUNIPER NETWORKS STRM

TECHNICAL NOTE

RESTORING YOUR DATA

JUNE 2008

If you are using STRM 2008.1 and above, you can schedule the backup of your

configuration information and data using the STRM Administration Console. The

data portion of the backup includes all offenses (including targets and attacker

information), asset data, event category information, vulnerability data, event data,

and flow data located on STRM.

You can restore your configuration information using the STRM interface, however,

you must use the procedures in this document to restore your flow, event, or

reporting data. This document includes:

•Before You Begin

•Restoring Your Data

•Troubleshooting Tips

Caution: If the current configuration of your STRM system differs from the

configuration that existed at the time the data was backed up, your system may

experience some gaps in information once the data is restored. For example, if the

recovered data includes device information from a device that no longer exists, the

interface will not display information regarding this removed device.

Before You Begin Each managed host in your deployment, including the STRM Console, Flow

Processors, and Event Processors create backup files in the /store/backup/

directory.

Note: Your system may also include a mount /store/backup from an external SAN

or NAS service, which allows for long term off-line retention of data, as often

required for compliancy regulations, such as, HIPPA and PKI.

Before you restore the data, consider the following:

•Locate the managed host on which the data is backed up (Console, Flow

Processor, or Event Processor).

•Backup files are saved using the following format:

backup.<name>.<hostname>_<host ID>.<target date>.<backup

type>.<timestamp>.tgz

Release 2008.2

Where:

<name> is the name associated with the backup.

<hostname> is the name of the STRM system hosting the backup file.

<host ID> is the identifier for the STRM system.

<target date> is the date that the backup file was created.

<backup type> is the type of backup. The options are data or config.

<timestamp> is the time that the backup file was created.

•Make sure your /store partition includes adequate space for the data you wish

to recover.

•The date and time for the data you wish to recover.

Restoring Your

Data To restore your data:

Step 1 Log in to your STRM Console, as root.

Step 2 Connect to the system on which you wish to store the data. This may be a system

host your Console, Event Processor, or Flow Processor.

Step 3 Change the directory:

cd /store/backup

Step 4 Identify the data files you need to restore by reviewing the date stamps on the

listed files:

ls -l

A list of backup files appear. For example:

root@csd6 /store/backup# ls

backup.scheduled.csd6_2.06_03_2008.config.1204862632982.tgz

backup.scheduled.csd6_2.07_03_2008.config.1204949036670.tgz

backup.scheduled.csd6_2.07_03_2008.db.1204948866713.tgz

backup.scheduled.csd6_2.08_03_2008.config.1205035447658.tgz

backup.scheduled.csd6_2.20_04_2008.config.1208747057662.tgz

backup.scheduled.csd6_2.20_04_2008.data.1208747105710.tgz

backup.scheduled.csd6_2.21_04_2008.config.1208833492837.tgz

backup.scheduled.csd6_2.21_04_2008.data.1208833780364.tgz

backup.scheduled.csd6_2.21_04_2008.db.1208833282522.tgz

backup.scheduled.csd6_2.22_04_2008.config.1208919886899.tgz

backup.scheduled.csd6_2.22_04_2008.data.1208920422678.tgz

backup.scheduled.csd6_2.22_04_2008.db.1208919678682.tgz

backup.scheduled.csd6_2.23_04_2008.config.1209006291557.tgz

backup.scheduled.csd6_2.23_04_2008.data.1209006842493.tgz

Release 2008.2

Restoring Your Data 3

backup.scheduled.csd6_2.23_04_2008.db.1209006090148.tgz

backup.test.csd6_2.10_03_2008.config.1205160090172.tgz

desc/

Step 5 Extract the files you wish to restore.

Note: Make sure the extraction command includes the P option, which ensures the

files are extracted to their original directory.

tar -zxPf /store/backup/backup.<name>.<hostname>._<host

ID>.<target date>.<backup type>.<timestamp>.tgz

For example:

tar -zxPf

backup.scheduled.csd9_2.31_03_2008.data.1207033304942.tgz

Daily backups capture all data from the previous day, on the host executing the

backup. The above example reflects a single, All-in-One Console and includes

reports, PDF files, event, and flow data. If you wish to restore data on an Event

Processor or Flow Processor that only contains event or flow data, only that data is

restored to that host.

If you only wish to restore specific event, flow, or reporting data, you must also

include an extraction path filter to limit the restored files using the following

commands:

Event Data: tar -zxPf backup.<name>.<hostname>._<host ID>.<target

date>.<backup type>.<timestamp>.tgz /store/ariel/events

Flow Data: tar -zxPf backup.<name>.<hostname>._<host ID>.<target

date>.<backup type>.<timestamp>.tgz /store/ariel/flows

Reporting Data: tar -zxPf backup.<name>.<hostname>._<host

ID>.<target date>.<backup type>.<timestamp>.tgz

/store/reporting

Note: If you wish to maintain the restored data, you may increase your data

retention settings to prevent the nightly disk maintenance routines from deleting

your restored data. To ensure your restored data is not deleted, review Step 8.

Step 6 Verify the files are restored by investigating one of the restored directories:

cd /store/ariel/flows/payloads/<yyyy/mm/dd>

For example:

cd /store/ariel/flows/payloads/2008/3/31

0 1 10 11 12 13 14 15 16 17 18 19 2 20 21 22 23

3 4 5 6 7 8 9

You can view the restored directories that are created for each hour of the day. If

directories are missing, this may indicate that no data was captured for that time

period. For example, the list of files in one of the restored directories may include:

ls 0|more

Release 2008.2

payload_flows~0_0~eb8d3826c5724b01~b56774a558286d05

payload_flows~10_0~ecfb94ded5814c4d~9c5d33d0ec9ec0a6

payload_flows~1_0~94fca21391be44ea~bd32d5dbe8c6a60a

payload_flows~11_0~4d98ae53d2354d41~bde1b8f0684e3829

payload_flows~12_0~2c45af65412c41c6~af424b6b3e5c2e48

payload_flows~13_0~388fe28e9484859~8ca4462103a72bfb

payload_flows~14_0~3e2c90e566d442ca~b7bb031ae09876db

payload_flows~15_0~d382f047a5164281~b2d99a661a9a8e28

payload_flows~16_0~3e18d2a93a1746ca~914d4395a0756c4b

payload_flows~17_0~13383fec3302441f~b237970768894b79

payload_flows~18_0~dcaa5df8d3764c65~a125bd6ca4cd3b76

payload_flows~19_0~d1ea417c7faf4551~869ef92249918994

Step 7 Verify the restored data is now available:

a Log into the STRM interface.

b Click the Event Viewer or Flow Viewer tab.

c Select Search > Edit Search from the drop-down list box.

The search window appears.

d In the Time Range box, select the Specific Interval option.

e Specify the data of the data you just restored in Step 5.

f Click Filter.

g View the results to verify the restored data.

Step 8 Optional. If your data retention for this type of data is configured for a time of period

that is less than the data you just restored (for example, 1 month and the data you

restored is 2 months old), then the STRM disk maintenance utility automatically

deletes this data at 2am of the following day. To avoid the automatic deletion of the

restored files, you can increase your disk retention settings to include this time

period or use the following procedure to mark restored data as protected to ensure

the files are not deleted:

Note: Increasing your disk retention period may impact the available disk space on

your system.

a Open the following file:

/opt/qradar/conf/diskmaintd.conf

An example of the file includes:

cat diskmaintd.conf

# Diskmaintd configuration file. Currently only supported

section is the

# list of files/directories to not cleanup.

Release 2008.2

Troubleshooting Tips 5

[path_to_keep]

# Specify on a line the path to a file or directory to keep.

Path is absolute.

# For example: /store/ariel/flows/records/2007/1/1/8

b On each host that has restored data, add the subdirectories of the restored data

to the file.

For example, if you wish to maintain the restored flow data:

/store/ariel/flows/payloads/2008/3/31

/store/ariel/flows/records/2008/3/31

Troubleshooting

Tips If you have restored your data files and the restored data is not available in the

STRM interface, we recommend that you verify the following:

•Verify that you have restored the data to the proper location.

For example, the restored files need to be located in the /store directory,

however, if you did not include the P option in the extraction command (see

Step 5), the files are restored in the directory in which you entered the

/store/backup/store directory.

•Ensure all proper file permissions are correctly configured. Typically, files are

restored with the original permissions. However, if the files are owned by root,

this may cause issues. If this is the case, adjust the files permissions using the

chown and chmod commands. For assistance, please contact Juniper Networks

Customer Support.

the United States and other countries. All other trademarks, service marks, registered trademarks, or registered service marks in this document are the property of

Juniper Networks or their respective owners. All specifications are subject to change without notice. Juniper Networks assumes no responsibility for any

inaccuracies in this document or for any obligation to update information in this document. Juniper Networks reserves the right to change, modify, transfer, or

otherwise revise this publication without notice.

Part Number 530-025630-01

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