Salah satu tempat untuk mendapatkan akses internet gratis adalah melalui kafe - kafe yang biasa-nya terdapat tulisan Free Internet Hot Spot. Berhubung akses internet tersebut digunakan untuk umum, maka muncul pertanyaannya seberapa amankah jaringan internet tersebut. Oleh karena itu dengan tutorial kali ini akan membahas bagaimana membuat jalur yang lebih aman pada jaringan yang digunakan oleh semua orang tersebut. Tentu implementasi dari tutorial ini tidak sekedar untuk mengamankan akses internet pada kafe saja tapi dimana saja ketika keamanan data diinginkan.
IT, Tips
internet, security, Tips
Ingin memiliki web crawler sendiri?
“Heritrix is the Internet Archive’s open-source, extensible, web-scale, archival-quality web crawler project.
Heritrix (sometimes spelled heretrix, or misspelled or missaid as heratrix/heritix/ heretix/heratix) is an archaic word for heiress (woman who inherits). Since our crawler seeks to collect and preserve the digital artifacts of our culture for the benefit of future researchers and generations, this name seemed apt.”
http://crawler.archive.org/Â
Tips
Pernah penasaran bagaimana GSM dan CDMA bekerja?
Simaklah artikel berikut..
“(On Screen): As I think many of my readers know, I used to work for Qualcomm designing cell phones. Qualcomm is the company which invented CDMA, and made it practical, and made it into a market success, and it now dominates the American market, where Verizon and Sprint both use it. There are two other nationwide cellular systems: AT&T currently uses IS-136 TDMA, which is obsolete and has no upgrade path. Cingular uses GSM, a more sophisticated form of TDMA from Europe.”
http://denbeste.nu/cd_log_entries/2002/10/GSM3G.shtml
Teknik frequency sharing CDMA dengan gambaran yg lebih sederhana
http://denbeste.nu/special/cdma_spreading.html
IT
The type of traffic distribution on the Internet today is quite different from the type you might have encountered only a few years ago. In the past, the vast majority of internet bandwidth was used to transfer character streams (in most cases HTML) over either HTTP or HTTPS. This trend has changed over the past few years, with a great deal of bandwidth (33 to 50 percent by some estimates) now being used to distribute large files over peer-to-peer connections. BitTorrent is one of the more popular protocols being used for peer-to-peer file transfers, and enabling your Java applications to use this protocol has never been easier.
Read more…
IT
Internet kini bukanlah hal yang baru di Indonesia, jumlah warung yang menyediakan jasa internet (warnet) pun jumlahnya sudah bejibun. Semakin banyak pula orang menggunakan internet untuk melakukan aktifitas sehari-harinya seperti mengirim surat (email), membaca berita, membayar tagihan, berkomunikasi dan lainnya.
Banyak kita menggunakan layanan online seperti gmail.com (untuk mail), google.com (untuk search) dan messenger.yahoo.com (untuk layanan instant messaging). Dengan sadar atau tidak, dengan menggunakan fasilitas-fasilitas online tersebut kita telah menukarkannya dengan identitas pribadi kita.
Read more…
Tips, Uncategorized
In this article I will describe a very useful program: GNU Screen. Usually this program is used by people who have a shell account on a Unix server. But it can be also helpful to people who haven’t yet started to use a terminal or even Linux/Unix at all. Screen — simply — is a program which enables users to create more system shells without the need of logging in multiple times. Moreover it allows to leave programs running after you’ve logged out. What can it be useful for? For example to continue compiling or downloading something when someone wants to use the computer, or to run more than one terminal for one ssh connection. There are many more possible ways of using it…
http://polishlinux.org/howtos/screen-tips-tricks/
Tips
“In this article I’d like to describe a text-mode Bittorrent client - rTorrent. It will be helpful to people that share a computer with other household members because it allows them to download files regardless of the logged in user. What’s more, because it is a text-mode client (runs under ncurses) you can watch how it works through any ssh client, web browser (ajaxterm) or even cell phone (MidpSSH). Wikipedia and the official website says that the very optimized code makes rTorrent much faster than the official client. So, do you want more? Bring it on!”
http://polishlinux.org/apps/p2p/rtorrent-console-p2p
Tips
