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Selasa, 20 Desember 2011
Cara Menginstall / Instalasi Ubuntu Server
Senin, 12 Desember 2011
Prasejarah
Pada masa Pleistosen, ketika masih terhubung dengan Asia Daratan, masuklah pemukim pertama. Bukti pertama yang menunjukkan penghuni awal adalah fosil-fosil Homo erectus manusia Jawa dari masa 2 juta hingga 500.000 tahun lalu. Penemuan sisa-sisa "manusia Flores" (Homo floresiensis)[1] di Liang Bua, Flores, membuka kemungkinan masih bertahannya H. erectus hingga masa Zaman Es terakhir.[2]
Homo sapiens pertama diperkirakan masuk ke Nusantara sejak 100.000 tahun yang lalu melewati jalur pantai Asia dari Asia Barat, dan pada sekitar 50.000 tahun yang lalu telah mencapai Pulau Papua dan Australia.[3] Mereka, yang berciri rasial berkulit gelap dan berambut ikal rapat (Negroid), menjadi nenek moyang penduduk asli Melanesia (termasuk Papua) sekarang dan membawa kultur kapak lonjong (Paleolitikum). Gelombang pendatang berbahasa Austronesia dengan kultur Neolitikum datang secara bergelombang sejak 3000 SM dari Cina Selatan melalui Formosa dan Filipina membawa kultur beliung persegi (kebudayaan Dongson). Proses migrasi ini merupakan bagian dari pendudukan Pasifik. Kedatangan gelombang penduduk berciri Mongoloid ini cenderung ke arah barat, mendesak penduduk awal ke arah timur atau berkawin campur dengan penduduk setempat dan menjadi ciri fisik penduduk Maluku serta Nusa Tenggara. Pendatang ini membawa serta teknik-teknik pertanian, termasuk bercocok tanam padi di sawah (bukti paling lambat sejak abad ke-8 SM), beternak kerbau, pengolahan perunggu dan besi, teknik tenun ikat, praktik-praktik megalitikum, serta pemujaan roh-roh (animisme) serta benda-benda keramat (dinamisme). Pada abad pertama SM sudah terbentuk pemukiman-pemukiman serta kerajaan-kerajaan kecil, dan sangat mungkin sudah masuk pengaruh kepercayaan dari India akibat hubungan perniagaan.
Alarm Rumah
Alarm Rumah
Solusi untuk Anda
Apakah Lingkungan di sekitar rumah Anda kurang aman? Sering terjadi kemalingan di daerah sekitar? Atau Anda sering berpergian ke luar kota meninggalkan rumah dalam keadaaan kosong?
Ini adalah Alarm Rumah yang kami jual:
Cara pemasangan dan penggunaan Alarm Rumah ini sangat mudah yaitu:
1. Alarm ini bisa dipasang di pintu atau jendela, cara kerja alat ini adalah apabila pintu atau jendela membuka, maka sistem alarm akan berbunyi.
Alarm ini tanpa kabel, sehingga pemasangannya sangat mudah dan fleksibel. Pemasangan alarm hanya ditempel menggunakan super double tape yang telah disediakan.
2. Alarm memiliki kekuatan suara sangat keras hingga 90dB (A) bisa terdengar dari radius cukup jauh, dan memberikan efek kejut sehingga membuat panik pencuri.
3. Batery sangat awet (3 batery type 1.5.VLR44). Untuk penggunaan yang wajar bisa bertahan sampai 1 tahun.
4. Produk sangat dibutuhkan oleh semua lapisan masyarakat untuk menjaga keamanan rumah.
5. Harga produk sangat terjangkau. Bila dibandingkan dengan manfaat untuk menjaga keamanan rumah dan isinya.
Cara pemasangan Alarm Anti Maling:
1. Tempelkan alarm anti maling di daun pintu / jendela dengan menggunakan super double tape yang sudah ada.
2. Tempelkan sensor alarm di bingkai pintu / jendela dengan menggunakan super double tape yang sudah ada, dengan posisi sejajar terhadap alarm.
3. Lakukan percobaan fungsi alarm dengan cara menghidupkan switch alarm ke posisi “ON”, kemudian pintu / jendela dibuka. Apabila alarm berbunyi berarti sudah benar pemasangannya.
.cara pemesanan :
Order melalui sms ke 087768240267. Contoh SMS : Pesan Alarm Rumah, 3 Buah, Bayu Prananda , Jl. Merak Jingga No.23, Medan .
Setting Proxy Settings on Browsers
Setting Proxy Settings on Browsers
For a number of reasons, HTTP Proxy is much better than the Transparent HTTP Proxy. Therefore, you will want all your browsers to point to the BorderManager HTTP Proxy IP address, port 8080, for HTTP, FTP and Security/SSL. The trick is getting all those browsers configured if you don't have time to run around manually setting them yourself. This tip lists several ways that you can push the settings out to the browsers without physically going to the PC.
Option 1 - Make the Users Do It Themselves!
In this method, you cut off web browsing access by disabling Transparent HTTP Proxy and using default filters, then you provide good instructions on how to set the proxy settings. You will want to at least provide some documentation with screenshots of each menu option the users have to click on, and the proper proxy settings. When users are given the choice of no internet access, or following a simple set of screenshots, 99% of them will get themselves on the Internet within 48 hours. You will then have the time to set up the management PCs, and the Help Desk will have time to help Aunt Betty when she gets confused.
Option 2 - Push the Browser Settings in the Login Script (for Internet Explorer)
In this method, you determine the proper registry key for your version of IE, export the settings to a .REG file, and then use REGEDIT in the login script to push the settings to the PC. If you leave the setting in the login script for several days, most of the PC's should be updated by then, and you can remove or comment out the commands. Here is an example:
In the container login script add the lines
#Regedit /s z:\public\setpxy.reg
To create the SETPXY.REG file, open notepad & type in as follows:
REGEDIT4 (or whatever version of REGEDIT is on your PC, such as REGEDT32)
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyServer"="<your proxy IP address>:8080"
"ProxyEnable"=dword:00000001
"ProxyOverride"="<local>"
Option 3 - Push the Browser Settings with ZENWorks Application Launcher
Netscape uses a text file called PREFS.JS which can be easily modified by a ZENWorks app, but the location of the file might be different on each PC, depending on how Netscape was set up. Search some of your PC's for that file, and if you are lucky, all PC's may have the file in a common location under a directory called Default.
Option 4 - Use DHCP to Push WPAD Settings for Browsers
http://support.novell.com/cgi-bin/search/searchtid.cgi?/2953490.htm
http://www.microsoft.com/TechNet/IE/reskit/ie5/part3/ch13sser.asp
Caveat: I was simply never able to get this to work for some reason, but I was able to get Option 5 to work with Internet Explorer!
Option 5 -Use DNS & Web Server to Push WPAD Settings for Browsers
The concept: When Internet Explorer is launched, it makes a DNS query for WPAD.<your domain.com> is the Automatic Proxy Configuration option is checked. If it gets a DNS response, it will look for a file called WPAD.DAT at that location. WPAD.DAT is simply a PROXY.PAC file renamed to WPAD.DAT. (See the note on PROXY.PAC files below, which also links to a sample I provide at this web site). The WPAD.DAT file contains a bit of java script (which you write) telling the browser where a proxy server is located and when to use it.
The setup: First, you need a working PROXY.PAC file. You will end up renaming it, and launching it from a web server. If you already are launching it from a web server per my tip on PROXY.PAC files, you have only to set up a DNS entry. Your PC's need to be pointing to your own internal DNS server as their first option. (You can easily set up an internal DNS server with NetWare 5.0 or later.) The DNS server needs to have a WPAD entry for your domain. So if you have a domain called, for instance, CJC.COM, you would have a DNS 'A' record for WPAD.CJC.COM. You also need an internal web server - you cannot use the BorderManager miniwebserver here, or a web server that does not default to using port 80.
Take a working PROXY.PAC file, rename it to WPAD.DAT, and copy it to the root of the web server. You should be able to type HTTP://WPAD.CJC.COM/WPAD.DAT in Internet Explorer and get a file download prompt. If so, just set IE for auto proxy config and it should work.
Troubleshooting: I had a lot of problems making this work at first, until I understood just how Internet Explorer works, and how my web servers were working. The DNS part was simple. The PROXY.PAC/WPAD.DAT file was also simple, since I was already using a PROXY.PAC file. But it just wasn't working. The reason was essentially because I had an overly complex web server configuration on my system. I have Apache, Novonyx and iFolder (another instance of Apache) all running on the same server at the same time, giving up web pages on 5 different IP addresses. The issue I had was, I think, due to my web servers relying on redirection of URL's to the proper document root directories. I put copies of WPAD.DAT into various locations, but they didn't seem to work. When I typed the proper URL in IE, I did get a download prompt as described above! Turns out I did NOT get a download prompt if I typed in HTTP://192.168.10.245/WPAD.DAT - which was where I had my WPAD DNS entry. Internet Explorer resolved my WPAD.CJC.COM query to 192.168.10.245, and it then tried to pull the file from the IP address, not the URL, but my web servers weren't set up to take that sort of query. Eventually, I simply put the WPAD.DAT file in my iFolder document root directory and pointed DNS there. (Note: I have iFolder listening on a secondary IP address using port 80, not 52080...) As long as you can get the WPAD.DAT in the root directory of a web server listening on port 80 of an IP address called out in DNS, you should be fine.
Option 6 - Use Browser Customization Kits to Lock Down the Browser
http://home.netscape.com/bisdev/distribution/index.html
http://www.microsoft.com/windows/ieak/default.asp
PROXY.PAC Files
Other Documentation - Novell AppNote
http://developer.novell.com/research/appnotes/2002/april/02/a020402.doc