Andrew Zola

2 weeks ago | techtarget.itmedia.co.jp | Rahul Awati |Andrew Zola

1983年、コンピュータ科学者のマイク・ムース氏は、音の反響から距離を測定する仕組み「エコーロケーション」に着想を得てPingを開発した。Pingという名称は、潜水艦がエコーロケーションに用いるソナーの反響音にちなんでいる。 ネットワーク管理において、Pingは名詞と動詞の両方を表す。名詞としてのPingは、ムース氏が開発したユーティリティー（特定の機能を補助するプログラムやツール）のことであり、動詞としてのPingは、ネットワーク接続の問題を解決するためにそのプログラムを使用する行為のことだ。 Pingは、ネットワーク内の特定のマシンにエコー要求（接続確認のための信号）を送信し、返ってきた応答から通信状態を判断する。送信先のマシンが正常であれば、即座にエコー応答（正常であることを示す応答信号）をPingの送信元に返す。通信状態を確認するためのプロトコル「ICMP」（Internet Control Message Protocol）に準拠する。...

Feb 4, 2025 | techtarget.com | Gavin James Wright |Andrew Zola |Alexander Gillis

Internet Key Exchange (IKE) is a standard protocol used to set up a secure and authenticated communication channel between two parties via a virtual private network (VPN). The protocol ensures security for VPN negotiation, remote host and network access. A critical role of IKE is negotiating security associations (SAs) for Internet Protocol Security (IPsec). SAs are the security policies for communication between two or more entities.

Oct 26, 2024 | techtarget.com | Nick Barney |Andrew Zola

What is the singularity? In technology, the singularity describes a hypothetical future where technology growth is out of control and irreversible. These intelligent and powerful technologies will radically and unpredictably transform our reality. The word singularity has many different meanings in science and mathematics. It all depends on the context. For example, in natural sciences, singularity describes dynamical systems and social systems where a small change may have an enormous impact.

Oct 15, 2024 | techtarget.com | Andrew Zola

IoT Cloud is a Salesforce platform designed to store and process internet of things (IoT) data. Salesforce IoT Cloud is powered by Thunder, a massively scalable rule-based real-time event processing engine. Salesforce is a San Francisco-based customer relationship management (CRM) and social enterprise software as a service (SaaS) provider. The company launched IoT Cloud in the fall of 2015 at its annual Dreamforce user conference. How does Salesforce IoT Cloud work?

Jul 29, 2024 | techtarget.com | Andrew Zola

Unobtainium is a term used to refer to a material that cannot be accessed. Such a material might be rare, prohibitively expensive, controlled or simply nonexistent. A common observation about unobtainium is that it meets all requirements perfectly, other than not actually existing. Unobtainium is derived from the word unobtainable, substituting -able with -ium, a suffix commonly used for chemical elements. What is unobtainium used for?