Strict Standards: Non-static method FeedWordPress::needs_upgrade() should not be called statically in /home/hsufehmi/tech.sufehmi.com/wp-content/plugins/feedwordpress/feedwordpress.php on line 113

Strict Standards: Non-static method FeedWordPress::stale() should not be called statically in /home/hsufehmi/tech.sufehmi.com/wp-content/plugins/feedwordpress/feedwordpress.php on line 179

Strict Standards: Non-static method FeedWordPress::update_requested() should not be called statically in /home/hsufehmi/tech.sufehmi.com/wp-content/plugins/feedwordpress/feedwordpress.php on line 184
Tech @ Sufehmi.com » 2005 » December

Archive for December, 2005

Open Source CRM

Friday, December 30th, 2005

Deprecated: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in /home/hsufehmi/tech.sufehmi.com/wp-includes/functions-formatting.php on line 83

Hari ini saya mengevaluasi berbagai CRM Open Source untuk salah satu client. Di luar dugaan saya, ada banyak kejutan yang saya temukan:

1. Compiere kini sudah bisa menggunakan database PostgreSQL. (dulu hanya bisa menggunakan Oracle)

2. Ada banyak software CRM dan ERP yang open source, dan kualitas mereka sudah jauh lebih bagus dibandingkan terakhir kali saya memantau bidang ini.

3. Yang terbaik (YMMV) adalah … vTiger CRM dan SugarCRM.
Satu kelebihan vTiger CRM adalah menyediakan modul untuk customer, sehingga customer service bisa nyaris 100% dipindahkan ke Internet.

Cukup mengesankan, CRM dengan kualitas setara bisa berharga ribuan dolar, namun kita bsia dapatkan cuma-cuma.

Catatan tambahan:
client saya tertarik dengan SFA (Sales Force Automation) yang mobile, dengan memanfaatkan PDA. Setelah saya periksa, hanya SugarCRM Professional yang bisa menghasilkan output khusus untuk PDA, sehingga aksesnya bisa lebih cepat. Namun, SugarCRM Professional harganya mencapai ribuan dolar.
Alternatifnya, bisa menggunakan solusi dari Software on Sail boats, kelihatannya mereka banyak mendapat rekomendasi karena kualitasnya. Dan harganya pun sangat terjangkau.

Kini, tidak ada alasan lagi untuk memberikan customer service yang buruk, karena sudah banyak CRM berkualitas dan free yang dapat membantu Anda untuk meningkatkan kualitas layanan pelanggan Anda.

Dojo Toolkit

Wednesday, December 28th, 2005

Deprecated: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in /home/hsufehmi/tech.sufehmi.com/wp-includes/functions-formatting.php on line 83

Untuk coding website dengan fitur AJAX secara cepat dan efisien, gunakan Dojo Toolkit.

Kelihatannya cukup bagus, tapi kalau ada yang lebih baik lagi, please feel free to comment :)

Kuliah gratis

Wednesday, December 28th, 2005

Deprecated: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in /home/hsufehmi/tech.sufehmi.com/wp-includes/functions-formatting.php on line 83

note: bagi yang mencari cara kuliah formal gratis, berikut ini adalah beberapa links yang bisa dicoba :

Informasi PMDK di berbagai universitas.
Info beasiswa dari ITS.
Info beasiswa dari MilisBeasiswa.com

Info beasiswa dari blog Beasiswa

Kuliah D3 gratis.
Kuliah gratis dari Universita Hamfara.
Kuliah gratis di UI.


Kini ada banyak universitas luar negeri yang menyediakan materi kuliahnya secara cuma-cuma. Tapi untuk menemukan semuanya tentu akan memakan waktu dan cukup membingungkan.

Syukurlah dengan Open Course Ware finder, maka kini Anda bisa menemukan berbagai materi kuliah yang free dengan sangat mudah.

Selamat menikmati.

Net Tools

Wednesday, December 28th, 2005

Deprecated: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in /home/hsufehmi/tech.sufehmi.com/wp-includes/functions-formatting.php on line 83

Bagi peminat masalah security / networking, Net Tools adalah satu koleksi utility yang bisa berguna bagi Anda.

Beberapa fitur Net Tools:

1) IP Address Scanner
2) IP Calculator
3) IP Converter
4) Port Listener
5) Port Scanner
6) Ping
7) NetStat (2 ways)
8) Trace Route (2 ways)
9) TCP/IP Configuration
10) Online - Offline Checker
11) Resolve Host & IP
12) Time Sync
13) Whois & MX Lookup
14) Connect0r
15) Connection Analysator and prtotector
16) Net Sender
17) E-mail seeker
18) Net Pager
19) Active and Passive port scanner
20) Spoofer
21) Hack Trapper
22) HTTP flooder (DoS)
23) Mass Website Visiter
24) Advanced Port Scanner
25) Trojan Hunter (Multi IP)
26) Port Connecter Tool
:
:
107) File Shredder
108) Local Access Enumerater
109) Steganographer (Art of hiding secret data in pictures)
110) Subnet Calculater

Dan terus bertambah setiap saat.

Memang ukuran downloadnya agak besar, tapi dari segi fitur cukup lengkap.

GNU Queue

Sunday, December 25th, 2005

Deprecated: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in /home/hsufehmi/tech.sufehmi.com/wp-includes/functions-formatting.php on line 83

This is another of my so-much-to-try-so-litle-time stuff : GNU Queue: clustering made easy.

Since computing performance are still increasing tremendously, clustering is still not a run of the mill stuff at the moment. Most of your work can still be done by a single PC in an acceptable amount of time, so there’s little incentive to make clustering more pervasive into our daily life.
But for those who needs it, GNU Queue seems to be a God-sent for its transparency and ease-of-use.

Now, if only there’s a consulting work coming, asking me to setup a Linux cluster, then I’ll be able to get myself to play with this thing, he he..

Gamespot Top 10 Game Of The Year (GOTY) and the new Falcon 4

Sunday, December 25th, 2005

Deprecated: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in /home/hsufehmi/tech.sufehmi.com/wp-includes/functions-formatting.php on line 83

The Gamespot’s GOTY for 2005 can be found here.

There are a few surprises there. For example, I expected Call of Duty 2 to show up, but instead it’s Battlefield 2.
It seems that Battlefield 2 is worth being a GOTY finalist though; for example, on how it makes online co op even better. For those who still remember, it was Return to the Castle Wolfenstein which first made online co op popular (previously, it was all deatchmatches). Battlefield 2 makes online co op FPS even better, by integrating voice chat capability; that’s it, for those who have enough bandwidth for it.
Also, squads is a great idea - if you’ve played RotCW, you’ll remember how sometimes it’s frustrating to get a single objective done. With squads, it’s now possible to tackle even multiple objectives at the same time. And while online co op brings a sense of solidarity for people on the same team; with squads, you and your team mates are like brothers.

The most surprising one is Resident Evil 4. I’ve played previous versions of it, but was not very much impressed.
But since this is the #1 game in this year’s GOTY, there must be something special about it. Alas, not much chance for me finding it out, since it’s on GameCube.

Anyway, I was just going to install Falcon 4 on my PC for my little brother - he’s very interested in planes and said he wants to become a pilot. With Free Falcon 3 and SuperPack 4, it should be good enough to let him experience how it is to become a pilot.
I almost became a pilot myself - passed all Merpati’s pilot screening tests, and made it to the last test. I failed on that last test, however I later found out this is because I didn’t have any recommendation letter from a high ranking government officials (read: “katebelece”)- so I wasn’t too upset about it.

Back to Falcon 4 - with a good HOTAS (hands on throttle-and-stick), it seems that only a multimillion dollar, specialized, sim machines can rival a PC with Falcon 4 installed.
Stumbled upon a good news though - the next version of Falcon 4 has finally been released, after 7 years !!
It’s probably the magic number for it - after we got Falcon 3 on 1991, we also had to wait for 7 years to get Falcon 4. :)

Falcon 4: Allied Force is basically what Falcon4 was, minus the bugs, and with ability to utilize today’s 3D hardware — the original Falcon 4 was designed to run on plain VGA cards ! (later there were patches to let it uses 3D cards, but these are not built-in feature), and actually runs on DOS. Damn, we’ve been waiting for a LONG time indeed, but at least it’s here now.
Best of all, it’s VERY cheap - Falcon 4 costed me close to US$ 50, but this one costs only about US$ 19. This is probably because they made the manuals as PDF file (700+ pages) - I prefer the book, but I can always use the one from Falcon 4.

If you think yourself as hardcore sim player, you are not until you got this.
I’m very much looking forward to try this out with my little brother.

[ Gamespot's 2005 GoTY ]
[ Falcon 4 HQ ]

Fuel battery

Sunday, December 25th, 2005

Deprecated: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in /home/hsufehmi/tech.sufehmi.com/wp-includes/functions-formatting.php on line 83

Saya memperkirakan bahwa fuel battery akan mulai tersedia di pasaran mulai dari tahun 2007, tapi ternyata saya salah: gadget yang menggunakan fuel battery sudah mulai dirilis !

Fuel battery tidak hanya memberikan baterai yang lebih tahan lama, namun juga memungkinkan munculnya gadget yang jauh lebih powerful daripada yang telah ada pada saat ini.

Semoga makin banyak gadget yang menggunakan fuel battery ini dalam waktu dekat ini.

Traffic shaper

Wednesday, December 21st, 2005

Deprecated: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in /home/hsufehmi/tech.sufehmi.com/wp-includes/functions-formatting.php on line 83

I’ve been promoting Firehol to those who needs a good firewall. Firehol is actually not a firewall by itself, it’s a firewall scripting language, which is very easy to use even for newbies. Underneath, it uses Linux’s iptables to build the firewall.
I recommend Firehol to others because it’s really easy to script (and I mean it), therefore minimizing the chance for human error; but it still allows us to build a complex firewall should there’s a need to do so. And because everything is configured via a file (/etc/firehol.conf), I can easily manage firewall for servers all over the world via SSH connection.

But I still yet to find a good traffic shaper solution to accompany this. I’ve been asked by a client where I installed Firehol as part of my consulting work there, she needs a way to control bandwidth utilization of her Internet connection. So far, I couldn’t find anything suitable.
Some traffic shaper requires its own firewall, some needs dedicated server for itself, others just plain cumbersome to manage, and so on.

Luckily, today I read on firehol’s mailing list about [ CTshaper ].
It was based on Wondershaper, but has since developed extensively and no longer resembles it. What’s special about it is that CTshaper is similar to Firehol in terms of easy of use, and also it can work with our existing Firehol setup. It couldn’t be easier, just include “extras/shaper.conf” on top of Firehol’s config file, and that’s it. I like how simple this is.

Hopefully you’ll find it useful too.

GPRS versus CDMA 2000 (1x)

Tuesday, December 20th, 2005

Deprecated: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in /home/hsufehmi/tech.sufehmi.com/wp-includes/functions-formatting.php on line 83

Selama beberapa minggu ini saya melakukan komparasi antara berbagai teknologi internet wireless, terutama dari GPRS dan CDMA 2000.

Kesimpulan singkatnya, CDMA 2000, bahkan yang 1x nya, mengalahkan GPRS secara cukup telak.
Sebagai contoh, koneksi Internet via Star One secara rutin mendapatkan kecepatan akses 10 KB/s. Terkadang bisa peak sampai 12-14 KB/s. Kecepatan teoritis maksimum adalah 18 KB/s.

Sebaliknya, kecepatan akses GPRS yang tercepat adalah sekitar 5.6 KB/s.
Ini walaupun sudah menggunakan handphone dengan GPRS Class 10 (Nokia 9500), lokasi cukup dekat dengan BTS.
Secara teoritis, kecepatan download maksimum HP GPRS class 10 adalah sekitar 10 KB/s, tapi, sama seperti pada CDMA 2000 1x, ini belum pernah terjadi.

Menggunakan alat GPRS tipe Class 12 (contoh: berupa card PCMCIA) tidak meningkatkan kecepatan download, tapi bisa meningkatkan kecepatan upload s/d 2 kali lipat.

Kecepatan akses ini sebetulnya masih bisa meningkat jauh lebih tinggi lagi.
Contoh; jika ada provider yang menyediakan fasilitas EDGE di BTS nya, maka Nokia 9500 (EDGE Class 10) bisa mengakses Internet dengan kecepatan maksimal sekitar 30 KB/s.
Untuk CDMA 2000 malah lebih seru lagi, dengan CDMA 2000 EV-DO, maka kita bisa mendapatkan kecepatan maksimal sekitar 387 KB/s ! (= 3.1 Mbps)

Kesimpulan ?
# Paket akses internet Star One 1GB/bln = Rp 200-ribu patut diperhitungkan oleh mereka yang membutuhkan akses Internet berkecepatan tinggi. Ponsel CDMA yang bisa saya rekomendasikan adalah Sanex SC-7090.
# Ada provider yang menyediakan EDGE atau tidak ya di Jakarta… ?

Selesai sudah … (fingers crossed)

Thursday, December 15th, 2005

Deprecated: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in /home/hsufehmi/tech.sufehmi.com/wp-includes/functions-formatting.php on line 83

Pagi ini saya membaca Kompas, dan ada sebuah artikel yang mengabarkan bahwa SBY menerima gelar doktor ilmu politik dari Universitas Thammasat. Disitu dikatakan bahwa Universitas Thammasat memberikan gelar tersebut karena, “… dianggap sebagai seorang pemimpin hangat yang memiliki visi dan integritas serta dikenal karena komitmennya dalam memperjuangkan demokrasi dan perdamaian”.

Harapan saya sama seperti Eko, yaitu SBY bisa menyikapi kasus Herman/Priyadi dengan arif, begitu beliau mendapatkan informasi yang lengkap mengenai insiden ini. Membaca artikel tersebut, saya kembali berharap demikian.

Karena itu saya gembira mendapat email dari Carlos Patriawan di milis teknologia@googlegroups.com, yang memberitahukan bahwa SBY tidak marah karena hal ini / foto tersebut. Juga, “… Presiden menganggap tidak perlu dilakukan penyelesain hukum”.

Rasanya kalau demikian, kita bisa menganggap kasus ini selesai dengan baik ya :)
Mudah-mudahan saja para aparat pelaksana juga berpendapat demikian.

Congratulations to Herman & Priyadi. Semoga mereka dan keluarganya kini sudah bisa merasa tenang kembali.