Restriction by IP address is secure against casual nosiness but not against a determined hacker. There are several ways around IP address restrictions. With the proper equipment and software, a hacker can “spoof” his IP address, making it seem as if he’s connecting from a location different from his real one. Nor is there any guarantee that the person contacting your server from an authorized host is in fact the person you think he is. The remote host may have been broken into and is being used as a front. (more)

If you are a Webmaster, system administrator, or are otherwise involved with the administration of a network, the single most important step you can take to increase your site’s security is to create a written security policy. This security policy should succinctly lay out your organization’s policies with regard to: (more)

Operating systems

Although the Unix and NT communities may not like to hear it. In general, the more powerful and flexible the operating system, the more open it is for attack through its Web (and other) servers.

Unix systems, with their large number of built-in servers, services, scripting languages, and interpreters, are particularly vulnerable to attack because there are simply so many portals of entry for hackers to exploit. Less capable systems, such as Macintosh and special-purpose Web server boxes, are less easy to exploit. The safest Web site is a bare-bones Macintosh running a bare-bones Web server. (more)

SSL uses public-key encryption to exchange a session key between the client and server; this session key is used to encrypt the http transaction (both request and response). Each transaction uses a different session key so that if someone manages to decrypt a transaction, that does not mean that they’ve found the server’s secret key; if they want to decrypt another transaction, they’ll need to spend as much time and effort on the second transaction as they did on the first. (more)

Unfortunately, there’s a lot to worry about Web servers. There are security risks that affect Web servers, the local area networks that host Websites, and even innocent users of Web browsers.

The risks are most severe from the Webmaster’s perspective. The moment you install a Web server at your site, you’ve opened a window into your local network that the entire Internet can peer through. Most visitors are content to window shop, but a few will try to to peek at things you don’t intend for public consumption. (more)

Bingung mencari ide untuk artikel Djarum Black Blog Competition aku bengong dan mulai putus asa. Mata menerawang kosong memandang sebuah pohon kamboja di depan rumah. Melihat burung gereja yang asik bermain dan saling kejar diantara dahan kamboja yang kokoh membuatku iri dan berfikir, seandainya aku ini seekor burung seperti mereka, akankah aku bisa bahagia? atau aku tersisih seperti burung-burung di kota yang mulai kehilangan tempat bermain? (more)

Di Bali saat ini banyak sekali dijumpai tulisan “PEMULUNG DILARANG MASUK”, entah karena banyak maling yg nyamar jadi pemulung ato warga mulai sadar? (lo kok bisa?, baca aja terus).

Dalam konsep “negri hijau” (he he istilah sendiri neh…) daur ulang itu penting, dengan memanfaatkan barang bekas atau mendaur ulang barang, maka secara tidak langsung kita telah melakukan penghematan sumber daya alam. (more)