November 2008 – Page 2

Category 5, 5e, 6 Cable Pinout

EIA/TIA 568 A

1 White-Green
2 Green
3 White-Orange
4 Blue
5 White-Blue
6 Orange
7 White-Brown
8 Brown

EIA/TIA 568 B
1 White-Orange
2 Orange
3 White-Green
4 Blue
5 White-Blue
6 Green
7 White-Brown
8 Brown

Crossover Cable
1 White-Orange 1 White-Green
2 Orange 2 Green
3 White-Green 3 White-Orange
4 Blue 4 Blue
5 White-Blue 5 White-Blue
6 Green 6 Orange
7 White-Brown 7 White-Brown
8 Brown 8 Brown

Gigabit Crossover- Uses 4 pairs for transmission, double cross
1 White-Orange 1 White-Green
2 Orange 2 Green
3 White-Green 3 White-Orange
4 Blue 4 White-Brown
5 White-Blue 5 Brown
6 Green 6 Orange
7 White-Brown 7 Blue
8 Brown 8 White-Blue

Sniffer Cable Pinout

The sniffer cable is needed to connect a sniffer to an ethernet hub, but not transmit any data that may reveal the sniffer’s existence. This cable will return an inverted version of anything sent to the interface. The pinout for this cable is from the book Windows Forensics, by Chad Steel (ISBN 0-470-03862-4), but can also be found at dgonzalez.net, along with other useful pinouts for receive-only cables.

Orange White TD+ (pin 1)
Orange TD- (pin 2)
Green White RD+ (pin 3)
Green RD- (pin 6)

Hub Side:
Orange White is spliced into Green
Orange is spliced into Green White

Sniffer Side
Orange White is cut and sealed.
Orange is cut and sealed.

66 Block 25 Pair Pinout

punch order for a 66 block with a 25 pair cable.

1. white blue
2. blue white
3. white orange
4. orange white
5. white green
6. green white
7. white brown
8. brown white
9. white gray
10. gray white

11. red blue
12. blue red
13. red orange
14. orange red
15. red green
16 green red
17 red brown
18 brown red
19. red gray
20. gray red

21 black blue
22. blue black
23. black orange
24. orange black
25. black green
26. green black
27. black brown
28. brown black
29. black gray
30. gray black

31 yellow blue
32. blue yellow
33 yellow orange
34. orange yellow
35. yellow green
36 green yellow
37 yellow brown
38 brown yellow
39. yellow gray
40 gray yellow

41. violet blue
42. blue violet
43. violet orange
44. orange violet
45. violet green
46. green violet
47. violet brown
48. brown violet
49. violet gray
50. gray violet

Comp-Tia’s Security+ Certification Exam Notes

Comp-Tia’s Security+ Exam
Exam Number SY0-101
Number of Questions 100
Time Allotted 90 Minutes
Passing Score 764/900
Exam Objectives: Available at the CompTia Site

Access Control Models

MAC Mandatory Access Control – An Administrator createds a predefined set of permissions and assigns them to users and objects (labels)
DAC Discretionary Acess Control – The resource owner established who or what has rights to an object (ACL)
RBAC Role Based Access Control – Rights are assigned per user role, roles are ususaly based on organizational structure.

Authentication and Identification Continue reading “Comp-Tia’s Security+ Certification Exam Notes”

CompTia Server+ Exam Notes

Exam Facts
CompTia Server+
Exam Number SK0-002
Number of Questions :80
Linear Exam
Minimum Passing Score :615/900
Time Alloted 90 Minutes

Exam Objectives: Available at the CompTia Site here (registration required)

Rack notes

A full rack is 42 U
One U is 1.75 inches
therefore a full rack has 73.5 inches of useable space.

Never move a full rack. Always remove all equipment first.
Install the heaviest parts towards the bottom. ( ex: UPS units)
Racks typically have wheels, and most have stabilizer feet. Continue reading “CompTia Server+ Exam Notes”

How To Set SPF records In Google Apps For Business

Google Apps for Business allows the use of SPF for cut back on mail spoofing. SPF (Sender Policy Framework) records allow a domain owner to specify which hosts are permitted to use their domain name when sending mail. This security seffting cuts back on email spoofing. Because SMTP is implemented in a manner which allows the sender of an email to claim to be someone else, spammers and conmen take advantage of this design flaw to send emails with forged From: addresses. The Sender Policy Framework allows a domain owner to use a special format of DNS TXT records to specify which machines/hosts are authorized to transmit email for their domain, making it difficult (but not impossible) to forge From: addresses. Continue reading “How To Set SPF records In Google Apps For Business”

Solving Vertical TeleVantage Error 27506

When upgrading from version 7 to 7.5, one of the procedures is to upgrade the TeleVantage Services :Upgrade TVrecording Archive Service to the matching version. The install may fail with the following error message:

TeleVantage Services Setup Information
Error 27506. Error executing SQL Script TvArchive.sql. Line 328 [Microsoft][ODBC SQL Server Driver][SQL Server]Violation of PRIMARY KEY constraint ‘PK_Users’. Cannot insert duplicate key in object ‘Users’.(2627)

This error seems to stem from the script trying to create a user in the local MSDE instance used to catalog the recordings, but the user already exists.

To fix this issue and allow the upgrade to proceed, run setup again, this time deselecting the Archive Service. This will remove of the service, but will not harm the database. Now, rerun the setup script and add the archive component again. Setup should now complete normally.

Solving Vertical TeleVantage Error 7595 Database Unknown

During a client install, the following error is displayed:

Error 7595 Database Unknown

This seems to be related to a MDAC problem. Grab a copy of the MDAC from the NetSetup folder. Extract the MDAC using WinZip. Browse the contents of the sqloledb.cab file. Extract the files to
C:\Program Files\Common Files\System\OleDB

Run the following to reregister the dll file.
regsvr32 “C:\Program Files\Common Files\System\OleDB\sqloledb.dll”

Reboot, and attempt to restart TeleVantage.

Solving Vertical TeleVantage Error 91

Object variable or With block variable not set- Error 91

When Starting the TeleVantage admin console or device manager,the message
“Error 91 (Object variable or With block variable not set) has occurred, If this problem persists, contact your systems administrator.”
is displayed

This message can be related to the account that TeleVantage runs as not being available or has been changed.

A quick fix is to navigating to the TeleVantage server directory and running the TVAccUtl.exe utility to reset the server account.

Toshiba Digital Phone Support in Vertical TeleVantage

Vertical TeleVantage can support a number of different digital phone manufacturers, such as Avaya, Nortel, and NEC. Toshiba digital phones are included in the list of supported devices, and TeleVantage supports this manufacturer very well, with a long list of supported models. A special board, the Toshiba Strata DKTU, is inserted in the server and the configuration allows the addition of up to 16 Toshiba stations per board. Because of this support, upgrading from a traditional PBX to Vertical TeleVantage can reduce costs for both hardware and training.

The Toshiba board is easy to configure, with drivers being added during the initial install of the specialized dialogic drivers included with the TeleVantage software. Once this is performed, there is no additional configuration. The device does not show up in the Dialogic DCM, rather it appears under Device Manager as a CTS:PCDKSC card.

Once the card is installed and the phones are plugged in, the individual phones will be identified as DKT devices in TeleVantage Administrator’s device manager. By configuring users, features may be mapped to each of the phone’s buttons. A template may be created to mass apply a standard button layout, or be used to selectively rollout certain configurations to specific users. Voice First answering is also supported, a feature older Toshiba PBX system use to intercom to an extension instead of ringing during an internal phone call.