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Minggu, 13 April 2008

Microsoft DOS 6.22 harus lisensi

Ketika mengetahui bahwa MS DOS 6.22 pun harus lisensi, maka mulailah saya mencari cari di google mengenai DOS yang gratis.. dan ternyata ada yaitu FreeDOS dan DR-Dos, saya sudah mencoba yang DR-DOS tidak ada masalah di komputer dan di program Foxpro (under dos). Semua bisa berjalan seperti biasa.

Untuk Freedos bisa di download di website http://www.freedos.org/

untuk DR-DOS bisa di download di website http://www.drdosprojects.de/index.cgi/download.htm

Rabu, 09 April 2008

ETHERNET CABLE: COLOR-CODE STANDARDS

http://www.incentre.net/incentre/frame/ethernet.html

The information listed here is to assist Network Administrators in the color coding of Ethernet cables. Please be aware that modifying Ethernet cables improperly may cause loss of network connectivity. Use this information at your own risk, and insure all connectors and cables are modified in accordance with standards. The Internet Centre and its affiliates cannot be held liable for the use of this information in whole or in part.

T-568A Straight-Through Ethernet Cable

The TIA/EIA 568-A standard which was ratified in 1995, was replaced by the TIA/EIA 568-B standard in 2002 and has been updated since. Both standards define the T-568A and T-568B pin-outs for using Unshielded Twisted Pair cable and RJ-45 connectors for Ethernet connectivity. The standards and pin-out specification appear to be related and interchangeable, but are not the same and should not be used interchangeably.

T-568B Straight-Through Ethernet Cable

Both the T-568A and the T-568B standard Straight-Through cables are used most often as patch cords for your Ethernet connections. If you require a cable to connect two Ethernet devices directly together without a hub or when you connect two hubs together, you will need to use a Crossover cable instead.

RJ-45 Crossover Ethernet Cable

A good way of remembering how to wire a Crossover Ethernet cable is to wire one end using the T-568A standard and the other end using the T-568B standard. Another way of remembering the color coding is to simply switch the Green set of wires in place with the Orange set of wires. Specifically, switch the solid Green (G) with the solid Orange, and switch the green/white with the orange/white.

Ethernet Cable Instructions:

Pull the cable off the reel to the desired length and cut. If you are pulling cables through holes, its easier to attach the RJ-45 plugs after the cable is pulled. The total length of wire segments between a PC and a hub or between two PC's cannot exceed 100 Meters (328 feet) for 100BASE-TX and 300 Meters for 10BASE-T.
Start on one end and strip the cable jacket off (about 1") using a stripper or a knife. Be extra careful not to nick the wires, otherwise you will need to start over.
Spread, untwist the pairs, and arrange the wires in the order of the desired cable end. Flatten the end between your thumb and forefinger. Trim the ends of the wires so they are even with one another, leaving only 1/2" in wire length. If it is longer than 1/2" it will be out-of-spec and susceptible to crosstalk. Flatten and insure there are no spaces between wires.
Hold the RJ-45 plug with the clip facing down or away from you. Push the wires firmly into the plug. Inspect each wire is flat even at the front of the plug. Check the order of the wires. Double check again. Check that the jacket is fitted right against the stop of the plug. Carefully hold the wire and firmly crimp the RJ-45 with the crimper.
Check the color orientation, check that the crimped connection is not about to come apart, and check to see if the wires are flat against the front of the plug. If even one of these are incorrect, you will have to start over. Test the Ethernet cable.

Ethernet Cable Tips:

A straight-thru cable has identical ends.
A crossover cable has different ends.
A straight-thru is used as a patch cord in Ethernet connections.
A crossover is used to connect two Ethernet devices without a hub or for connecting two hubs.
A crossover has one end with the Orange set of wires switched with the Green set.
Odd numbered pins are always striped, even numbered pins are always solid colored.
Looking at the RJ-45 with the clip facing away from you, Brown is always on the right, and pin 1 is on the left.
No more than 1/2" of the Ethernet cable should be untwisted otherwise it will be susceptible to crosstalk.
Do not deform, do not bend, do not stretch, do not staple, do not run parallel with power cables, and do not run Ethernet cables near noise inducing components.

Basic Theory:

By looking at a T-568A UTP Ethernet straight-thru cable and an Ethernet crossover cable with a T-568B end, we see that the TX (transmitter) pins are connected to the corresponding RX (receiver) pins, plus to plus and minus to minus. You can also see that both the blue and brown wire pairs on pins 4, 5, 7, and 8 are not used in either standard. What you may not realize is that, these same pins 4, 5, 7, and 8 are not used or required in 100BASE-TX as well. So why bother using these wires, well for one thing its simply easier to make a connection with all the wires grouped together. Otherwise you'll be spending time trying to fit those tiny little wires into each of the corresponding holes in the RJ-45 connector.

Selasa, 25 Maret 2008

unlock password BIOS

selamat mencoba, good luck

AWARD BIOS
01322222, 589589, 589721, 595595, 598598, AWARD SW, AWARD_SW, Award SW, AWARD PW, _award, awkward, J64, j256, j262, j332, j322, HLT, SER, SKY_FOX, aLLy, aLLY, Condo, CONCAT, TTPTHA, aPAf, HLT, KDD, ZBAAACA, ZAAADA, ZJAAADC, djonet,

AMI BIOS
AMI, A.M.I., AMI SW, AMI_SW, BIOS, PASSWORD, HEWITT RAND, Oder

PHOENIX
BIOS, CMOS, phoenix, PHOENIX

Password lainnya yang bisa Anda coba
LKWPETER, lkwpeter, BIOSTAR, biostar, BIOSSTAR, biosstar, ALFAROME, Syxz, Wodj

Senin, 24 Maret 2008

Awas, Hacker Menyusup Lewat Microsoft Word

www.kompas.co.id

Hacker mungkin memenfaatkan kelemahan software Microsoft Word untuk menyusup dan menanam program jahat di komputer Anda. Microsoft memperingatkan pengguna software buatannya itu untuk mewaspadai celah keamanan yang baru ditemukan.

"Jangan membuka atau menyimpan file Word yang Anda terima dari sumber tak terpercaya atau yang meragukan," tulis Microsoft dalam situsnya, akhir pekan lalu. Celah kelemahan ditemukan pada Jet Database Engine yang digunakan Word dan Access.

Microsoft masih memeriksa apakah celah keamanan serupa juga ditemukan pada software lainnya. Namun, belum dipastikan kapan patch untuk menambal celah keamanan tersebut akan dirilis. Kemungkinan saat sesi upgrade fitur keamanan berikutnya yang direncanakan 8 April 2008.

Risiko serangan dapat terjadi pada pengguna Microsoft Word 2007, 2003, dan 2002 kecuali yang berjalan di atas sistem operasi Windows Vista maupun Windows Server 2003 SP2. Kedua sistem operasi sudah dilengkapi engine terbaru yang bebas dari celah tersebut. Semuan software yang memanfaatkan Msjet40.dll dengan versi di bawah 4.0.9505.0 berisiko disusupi program jahat.

Serangan melalui engine database beberapa kali terjadi. Pada Desember 2007, US-CERT (United States Computer Emergency Readiness Team) memperingatkan serangan program jahat melalui Microsoft Access Database (.mdb). Sejumlah ahli keamanan yakin serangan tersebut juga karena kelemahan pada Jet Database Engine.(PCWORLD/WAH)