Wednesday, March 23, 2011

Kenapa harus takut PLTN?

Saat ini kalau bertemu orang, nadanya sama bahwa PLTN itu berbahaya. Upaya untuk memiliki PLTN, bukan saja ditinjau lagi, namun perlu diurungkan. Sikap takut kemudian membuat menjadi mundur memang manusiawi. Untungnya tidak semua orang memiliki sifat itu. Yang repot jika sifat itu dimiliki para pemimpin, ulama dan cerdik pandai, yang dipimpinnya bisa jadi akan ikut saja.
Jika takut radiasi, PLTN ditolak. Bagaimana dengan sumber bahaya lain yang dapat merengggut jiwa manusia. Ada banyak sumber petaka di negeri ini, mungkin dinegara lain tidak terjadi. Sumebr petaka itu bisa berasal dari pantai, gunung berapi, sepeda motor, bis, kereta, hingga pesawat terbang. Kalau semua sumber petaka ini harus dihindari, dapat dibayangkan bagaimana kita harus hidup. Hidup tanpa sepeda, mobil, bis, kereta api, ferry, pesawat terbang. Hidup jauh dari gunung berapi dan pantai yang agak susah mengingat lahan di kawasan tertentu memang terbatas.

Cobalah bersahabat dengan resiko, barangkali resiko bisa diminimalkan tanpa harus membuang elemen yang beresiko. Bisa jadi elemen tersebut banyak menguntungkan. Jika kemudian ada resiko, itu wajar saja. Bagi umat muslim, wajib percaya atau beriman kepada takdir baik dan takdir buruk datangnya dari Allah SWT. Entah bagi orang yang tidak beraga atau tidak memahami agama.

Jika karena resiko kita harus mundur, bisa jadi tidak ada satupun orang yang mau menjadi tentara atau petugas keamanan. Karena posisi tersebut selalu berdampingan dengan resiko, bahkan resiko kematian. Tak ada lagi olahragawan terjun payung, gantole, terbang layang, arung jeram, dsb.

Sudahlah, gak usah terlalu takut. Toh masih ada Tuhan di atas sana yang akan melindungi dan menolong kita dari segala mara bahaya. Biarkan Tuhan yang menentukan siapa yang mendapatkan takdir baik dan siapa yang mendapatkan takdir buruk. We just try, not refuse.

Hanya bravemen yang memiliki masa depan cerah dengan segala resiko yang harus dilaluinya. Hidup ini sebenarnya sudah resiko. Haruskan diakhiri hidup ini? no way men... life must go on

Bersyukurlah masih ada para pemberani, sehingga kita semua terbebas dari penjajahan. Jika Anda takut tak perlu disebarkan kepada orang lain. Simpan untuk diri sendiri saja.

Tuesday, March 22, 2011

Peralatan Uji Jaringan Komputer

Untuk mempermudah dan mempercepat diagnose kerusakan pada jaringan komputer dibutuhkan berbagai alat bantu, bisa berbentuk perangkat lunak, bisa juga berbentuk peralatan. Dengan adanya peralatan atau instrumen, kegagalan dapat diketahui secara lebih akurat, tidak hanya sekedar menggunakan feeling belaka. Peralatan dapat berbentuk hand held dan dapat berbentuk portable. Yang penting alat mudah dibawa kemana-mana dengan batere yang tahan lama, misal hingga 8 jam, bila perlu seharian kerja. Instrumen yang mungkin Anda perlukan untuk mengetahui kerusakan atau penurunan kinerja jaringan komputer antara lain :
  1. DTX CableAnalyzer™ Series
  2. EtherScope™ Series II Network Assistant
  3. LinkRunner™ Pro & Duo Network Multimeter
  4. CableIQ™ Qualification Tester
  5. NetTool™ Series II Inline Network Tester
  6. OptiView® Portable Network Analyzer
  7. AirCheck™ Wi-Fi Tester
  8. AirMagnet WiFi Analyzer
  9. AirMagnet Spectrum Analyzer
  10. AirMagnet Planner

DTX CableAnalyzer™ Series

The DTX CableAnalyzer Series from Fluke Networks is the testing platform for today and tomorrow. This revolutionary new future-proof platform significantly reduces total time to certify by improving every aspect of the testing process.

It starts with 9-second Cat 6 Autotest. That means you can meet TIA-568-C and ISO 11801:2002 certification requirements and receive structured cabling warranties faster than ever before. With all this speed also comes the highest accuracy as the DTX is the only tester to use a standards-compliant, electrically-centered permanent link test adapter. Furthermore, the DTX-1800 truly delivers on the promise of a futureproofing investment by measuring 10 Gig cable performance and Alien Crosstalk (ANEXT and AFEXT) in full compliance with the industry standards to 500 MHz. The AC Wiremap feature validates for Power over Ethernet services in accordance with TIA/EIA standards, even if a Midspan power supply is used. With over 40,000 units in use today, the DTX Series, is clearly the industry’s choice as the most trusted cable certifier.

Price Fluke Networks DTX-1800 CABLE ANALYZER = $ 7,979.80. FOB Jakarta : US$13.500


EtherScope™ Series II Network Assistant

The handheld EtherScope analyzer assists network professionals with installation, validation and troubleshooting of Gigabit LANs and 802.11 wireless LANs. Install and integrate infrastructure easily by testing, verifying and fixing configuration issues during deployment. Validate network performance and service delivery by measuring key performance attributes and the availability and responsiveness of essential resources.

Diagnosis LAN health with one click. Close trouble tickets fast with guided drill-downs to the root cause. Audit the performance of the network on a regular, periodic basis to identify and correct emerging issues. The EtherScope Network Assistant makes testing is so simple practically anyone can troubleshoot problems instantly.

Price of Fluke Networks ES2-LAN-SX/I-LRD mainframe with LAN, RFC2544/ITO, SX Fiber, and LinkRunner DUO mainframe with Reflector = $8,551.35. FOB Jakarta : US$ 10.000

LinkRunner™ Pro & Duo Network Multimeter

Today’s connectivity problems are more complex than ever. Users demand Gigabit connectivity. IT departments enforce stronger standards like 802.1X. And technologies like VoIP and WLAN have given rise to a greater reliance on PoE for power.

The LinkRunner Pro and Duo recognize this, and empower technicians to address today’s challenges with powerful new features and reporting capabilities. And, following the tradition of the original LinkRunner, they are designed for simplicity and ease-of-use to ensure rapid deployment and concise answers.

Vision to resolve a broader range of today’s link connectivity problems. That’s Network SuperVision.™ That’s Fluke Networks’ promise to you.

Price of LinkRunner Duo Carrier Ethernet Tester Including Reflector & Li-Ion = $1895.00 atau Rp 16.000.000,-

CableIQ™ Qualification Tester

CableIQ is the first cabling bandwidth tester for network technicians. It gives even the most novice tech the vision to see what speeds existing cabling can support, quickly isolate cabling from network problems, and discover what is at the far end of any cable. That means network techs can close trouble tickets faster, reduce on-call time, and save money by better utilizing their existing infrastructure.

CableIQ's powerful troubleshooting capability and intuitive interface enable your frontline technicians to identify and troubleshoot a wider range of problems within your infrastructure. Is the port active? Are the duplex settings matched? Is it a network problem or a cable problem? Can the cable support the required network bandwidth? CableIQ is the only tool that can answer all these questions before trouble tickets are escalated to the next level reducing problem escalation by up to 30%.

Price of Fluke Networks CIQ-100 CableIQ Qualification Tester = $930.75 atau Rp 17.000.000,-

NetTool™ Series II Inline Network Tester

Troubleshooting network connectivity problems can be a daunting and time-consuming task. Without the right tool, network techs can spend hours of unnecessary time with trial and error guesswork trying to isolate the problem.

Fluke Networks has put an end to the guessing game with the NetTool Series II Inline Network Tester. NetTool combines powerful NetProve diagnostics, inline Gigabit vision, VoIP Phone PC configuration testing in one palm-sized tool, so you'll have everything you need to quickly resolve even the toughest connectivity problem. Plus, with the monitoring and authentication option, you'll have the power to identify port-based security threats and maintain user connectivity in 802.1x environments.

Since no two networks are identical, Fluke Networks offers several NetTool models and options to match your individual requirements and to maximize the value of your NetTool investment. From our top-of-the-line NetTool Series II Network Service Kit to the entry-level NetTool 10/100, you will find a NetTool model that fits your network troubleshooting needs and your budget.

Price of Fluke Networks NTS2-PRO NETTOOL Series II Pro = $2,320.35. FOB Jakarta US$ 4,000.00

OptiView® Portable Network Analyzer

The OptiView Network Analyzer is like having a “virtual network engineer” with its advanced network analysis features, built-in expert advice and all-in-one capability for analysis, troubleshooting, monitoring, trending and alerting – you can manage the core, remote sites or critical network points with a single tool.

OptiView Portable Network Analyzer can help you:
  • Resolve network performance issues in real-time using vendor-independent infrastructure analysis, on-the-wire traffic analysis, and full-line rate packet capture/decode.
  • Solve tough problems – even if you’re not a packet decode geek – through application-centric protocol analysis that provides guidance, not just data.
  • Deploy, secure and troubleshoot wireless LANs.
  • Optimize network equipment to minimize outages and degradations.
  • Eliminate unwanted applications and enforce traffic and bandwidth policies through deep traffic analysis.
  • Assess, verify and prove network readiness for new applications, new technologies and infrastructure deployment.
  • Perform routine audits to identify regulatory compliance violations (HIPAA, PCI, SOX).
  • Maintain network integrity by discovering unauthorized devices and misuse of network equipment.
  • Save huge amounts of time and keep documentation up-to-date with OptiView’s automated reporting function.
Price of Fluke Networks OPVS3-GIG OptiView Series III Integrated Network Analyzer Pro Gigabit = $19,795.05. FOB Jakarta US$ 32,000.00

AirCheck™ Wi-Fi Tester

Wi-Fi is a complex technology, but testing it doesn’t have to be. The AirCheck Wi-Fi tester allows network professionals to quickly verify and troubleshoot 802.11 a/b/g/n networks.

Designed specifically for dispatched troubleshooting, AirCheck simplifies wireless testing by providing:
  • Just a few clicks to the answers you need with streamlined, guided troubleshooting
  • An instant view to required test results including network availability, connectivity, utilization, security settings, rogue hunting, and interference detection
  • A rugged, purpose-built Wi-Fi tester that’s easy to use and easy to carry
Its intuitive design makes it simple for anyone to quickly master AirCheck. Instant power-up and streamlined tests give answers in seconds so you can close trouble tickets faster – making technicians and users alike more productive. Easily manage test results and documentation using AirCheck Manager software. From start to finish, AirCheck helps take the guesswork out of everyday wireless troubleshooting.

Price of Fluke AirCheck Wi-Fi Tester 1.0 = $1,995.00. FOB Jakarta US$ 3,200.00


AirMagnet WiFi Analyzer

AirMagnet WiFi Analyzer is the industry standard tool for mobile auditing and troubleshooting enterprise Wi-Fi networks. AirMagnet WiFi Analyzer helps IT staff quickly solve end user issues while automatically detecting security threats and other wireless network vulnerabilities. The solution includes the industry’s only suite of active WLAN diagnostic tools, enabling network managers to easily test and diagnose dozens of common wireless performance issues including connectivity problems, device conflicts and signal multi-path problems.

AirMagnet WiFi Analyzer includes a full compliance reporting engine, which automatically maps collected network information to requirements for compliance with policy and regulations. AirMagnet WiFi Analyzer integrates with AirMagnet Spectrum Analyzer for simultaneous Layer 1 and Layer 2 Wi-Fi troubleshooting.

AirMagnet WiFi Analyzer is available in two versions: “WiFi Analyzer Express” provides the core building blocks of WiFi troubleshooting and auditing with the ability to see devices, automatically identify common problems and physically locate specific devices. “WiFi Analyzer PRO” significantly extends all the capabilities found in the Express version and adds many more to provide a WiFi tool to solve virtually any type of performance, security or reporting challenge in the field.

Price of OPTIVIEW OPVS3-WFA AIRMAGNET WIFI ANALYZER = $4.195.00. FOB Jakarta US$ 6,700.00

AirMagnet Spectrum Analyzer

Professional wireless networks depend on the presence of a strong reliable physical layer as the basis of communication. This fundamental requirement is a challenge for Wi-Fi networks, which must share the 2.4 GHz and 5 GHz spectrum with a variety of potentially interfering technologies.

AirMagnet Spectrum Analyzer solves this problem with an intuitive solution that allows IT staff to quickly analyze the local RF environment and identify specific sources of interference and their physical locations. It performs real-time RF spectrum analysis and pinpoints the location of problematic wireless devices, including Bluetooth, cordless phones, microwave ovens and video cameras, allowing IT staff to ensure optimal performance of their wireless networks.

The Spectrum Analyzer is an important part of the AirMagnet mobile toolset with the ability to integrate with AirMagnet Survey and AirMagnet WiFi Analyzer at critical stages of WLAN planning and deployment when Layer 1 analysis is needed most.

Price of AirMagnet Spectrum Analyzer IDs nonWiFi Includes PC card external antenna = $4,195.99. FOB Jakarta US$ 4,300.00

AirMagnet Planner

AirMagnet Planner takes the guess-work out of WLAN design and installation, making it easy for network professionals to accurately plan and deploy 802.11-based wireless networks in any indoor environment. The AirMagnet Planner accounts for building materials, obstructions, access point configurations, antenna patterns, and a host of other variables to provide a reliable predictive map of Wi-Fi signal and performance. It ensures full coverage for end-users while minimizing signal bleed into unsecured areas.

AirMagnet Planner can be purchased as a standalone product, as an integrated feature of AirMagnet Survey Express or built into AirMagnet Survey PRO.

Price of Fluke Networks AM/A4013G AirMagnet Planner Module, Software = $1,000.00

Kesimpulan :
  1. DTX CableAnalyzer™ Series = $ 7,979.80. FOB Jakarta = ?
  2. EtherScope™ Series II Network Assistant = $8,551.35. FOB Jakarta = ?
  3. LinkRunner™ Pro & Duo Network Multimeter = $1895.00, FOB Jakarta = ?
  4. CIQ-100 CableIQ™ Qualification Tester = $930.75. FOB Jakarta = ?
  5. NTS2-PRO NetTool™ Series II Inline Network Tester = $2,320.35. FOB Jakarta = ?
  6. OPVS3-GIG OptiView Series III Integrated Network Analyzer Pro Gigabit = $19,795.05. FOB Jakarta = ?
  7. AirCheck™ Wi-Fi Tester 1.0 = $1,995
  8. OPTIVIEW OPVS3-WFA AirMagnet WiFi Analyzer = $4.195.00
  9. AirMagnet Spectrum Analyzer IDs nonWiFi Includes PC card external antenna = $4,195.99. FOB Jakarta = ?
  10. AM/A4013G AirMagnet Planner Module, Software = $1,000.0. FOB Jakarta = ?



Sunday, March 20, 2011

Instalasi Ulang Fedora 14 di Dual Boot System

Karena satu dan lain hal, Windows XP pada dual boot system kami mengalami kegagalan operasi. Langkah terakghir yang dapat dilakukan hanyalah dengan instalasi ulang si windows xp. Setelah berhasil melakukan instalasi ulang Win-XP, ternyata pilihan boot ke Fedora 14 menjadi tidak ada. Setiap kali boot, selalu diarahkan ke Win-XP. Coba-coba instalasi ulang si Fedora 14.

Dengan sedikit agak takut terhapus isi di Win-XP, Fedora 14 akhirnya diinstalasi ulang. Pilihan saat instalasi adalah "Replace Existing Linux System(s)".

Ternyata setelah proses instalasi Fedora 14 berakhir dan di reboot ulang, pilihan boot (GRUB) kembali normal. Alhamdulillah. Oh ya..., saya menggunakan DVD Fedora 14 yang didapat dari majalah InfoLINUX edisi 01/2011.

Sebelumnya sudah diupayakan untuk mengedit GRUB melalui Knoppix 6.4.3 dari InfoLINUX edisi 02/2011, ternyata tidak bisa masuk ke dalam sistem Fedora 14 yang lama.