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INFORMATION SERVICES

The Network Information Center (NIC)

ESnet provides a number of information and support services, which are described below. These services are provided via a pair of duplicate servers in ESnet's Network Information Center, which is located at the Network Operations Center at NERSC. In general, users must have access to appropriate client software on a local PC, MAC, or workstation to use these services, although many services are available via telnet or ftp. In some cases, remote-access client capability is also provided on the NIC, with the user accessing the client software via telnet or X-windows. In still other cases, remote client software is made available on the ESnet NIC for users to download and use on their local computing platforms.

Users can gain direct access to the ESnet NIC server through a variety of network applications, from ftp and telnet to WAIS (Wide Area Information Server), Gopher, and Mosaic (see Table 6-1).

The ESnet Network Information Center servers are the primary information repository for the ESnet community. The information available on these servers includes ESnet committee documents, such as meeting notes and notices for the ESSC and the ESCC and associated subcommittees, in addition to ESnet mailing lists, NetNews archives, public-domain software, and files and documents regarding the latest networking technology and research topics All information on the ESnet NIC servers is full-text WAIS indexed.

Table 6-1. Methods of Accessing ESnet's Network Information Center Server


APPLICATION ADDRESS Mosaic http://www.es.net Gopher gopher://gopher.es.net ftp ftp://ftp.es.net DECnet esnic:: (42158::) NFS nfs.es.net AFS /afs/es.net/nic e-mail nic@es.net

Directory Services

OSI X.500 Directory Service (White Pages)
The White Pages Pilot Project is part of a world-wide Distributed Directory Service pilot project based on the X.500 standard. More than 30 countries participate in the global pilot project, which contains more than 1 million entries. The pilot Directory Service contains information primarily about persons and organizations. The information in the Directory is hierarchically structured, with entries arranged in the form of a tree. Users can browse this tree or retrieve information about a person, generally by knowing that person's name and organization.

The ESnet community is well-represented in the White Pages pilot project. Currently, there are more than 15 backbone sites represented in the Directory, which comprises over 100,000 entries. These entries, which are primarily descriptions of persons, include e-mail addresses, postal addresses, telephone numbers, and other optional descriptive information. This information can be accessed in a variety of ways, including the use of X.500 clients, finger, whois, e-mail, Gopher, or WWW.

Ph (Phone Book)
Ph (Phone book) is an fully indexed, fast-access on-line white-pages directory service developed and freely distributed by the Computer and Communications Services Office at the University of Illinois at Urbana. Ph primarily contains information about people, such as e-mail addresses, postal addresses, telephone numbers, and other descriptive information. There are over 180 Ph Servers on the Internet today.

Electronic Mail Services

OSI X.400 and SMTP
ESnet's Message Handling Services (electronic mail) provides fully compliant SMTP (Simple Mail Transfer Protocol) and ISO/OSI X.400 mail transport services. A gateway between SMTP mail and X.400 mail is provided to support full, bidirectional connectivity between these two communities. ESnet's mail system supports mail list archiving and NetNews cross-posting, as well as remote list management. All archives are full-text WAIS indexed and are accessible via ESnet's WWW, Gopher, and WAIS services. Remote list management is accomplished via an Xwindow tool that allows "list owners" to build and manage their own ESnet mailing lists.

NetNews and Bulletin Board Services

NetNews is a global service that permits a group of people with a common interest to easily exchange articles tagged with one or more universally recognized labels, which are called NewsGroups. There are public NewsGroups for almost every area of interest, from hobbies to scientific research.

ESnet's NetNews service carries many of the public NewsGroups available on the Internet as well as NewsGroups local to the ESnet community. ESnet's NetNews service supports e-mail cross-posting for any mailing list on the ESnet mail system. The NetNews service provides for NewsGroup archiving on the ESnet Information Server. The NewsGroup archives are full-text WAIS indexed and are accessible via ESnet's WWW, Gopher, and WAIS Services.


Go to other ESnet services:

Network Operations Management

Network Infrastructure Services

Videoconferencing Services


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