NetWare evolved from a very simple concept: file sharing instead of disk sharing. In 1983 when the first versions of NetWare originated, all other competing products were based on the concept of providing shared direct disk access. Novell’s alternative approach was validated by IBM in 1984, which helped promote the NetWare product. Novell NetWare shared [...]
Domain Name System
The latest articles related to Domain Name System
Squid is a proxy server and web cache daemon. It has a wide variety of uses, from speeding up a web server by caching repeated requests; to caching web, DNS and other computer network lookups for a group of people sharing network resources; to aiding security by filtering traffic. Although primarily used for HTTP and [...]
Below is a sample conversation between an HTTP client and an HTTP server running on www.example.com, port 80. Client request GET /index.html HTTP/1.1 Host: www.example.com A client request (consisting in this case of the request line and only one header) is followed by a blank line, so that the request ends with a double newline, [...]
CNAME record or Canonical Name record is a type of resource record in the Domain Name System (DNS) that specifies that the domain name is an alias of another, canonical domain name. This helps when running multiple services (like an FTP ”and” a webserver; each running on different ports) from a single IP address. Each [...]
org is a generic top-level domain (gTLD) of the Domain Name System (DNS) used in the Internet. The name is derived from ”organization”. The org domain was one of the original top-level domains,, with com, edu, gov, mil and net, established in January 1985. It was originally intended for non-profit organizations or organizations of a [...]
Communications in data centers today are most often based on networks running the IP protocol suite. Data centers contain a set of routers and switches that transport traffic between the servers and to the outside world. Redundancy of the Internet connection is often provided by using two or more upstream service providers (see Multihoming). Some [...]
Officials said that typically Davis used the ColdFusion software development framework, and attacked vulnerabilities in Microsoft Windows programs to gain backdoor entry into a system. Davis did not program in ColdFusion; rather, he exploited a vulnerability discovered by rain.forest.puppy and extended to allow file uploads by a member of the L0pht. Davis also allegedly used [...]
Name-based virtual hosts have some disadvantages: * They do not properly support secure websites (HTTPS). All name-based virtual hosts using the same IP address must share the same digital certificate. This is because the SSL/TLS handshake takes place before the hostname is sent to the server. Thus the server doesn’t know which encryption key to [...]
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Hostname – Internet hostnames
On the Internet, a hostname is a domain name assigned to a host computer. This is usually a combination of the host’s local name with its parent domain’s name. For example, “en.wikipedia.org” consists of a local hostname (“en”) and the domain name “wikipedia.org”. This kind of hostname is translated into an IP address via the [...]