levselector.com New York
home > Network Email


• www.ssc.com/mirrors/LDP/LDP/nag/nag.html -  online book: The Network Administrators' Guide by Olaf Kirch

• www.hummingbird.com -
• www.hummingbird.com/products/nc/exceed/index.html - Hummingbird Exceed - permits applications, normally available only on expensive UNIX workstations, to be readily accessed by a company's existing Windows based PCs.

• www.uk.research.att.com/vnc/ - Virtual Network Computing. Similar to installing an X server on your PC, but VNC is smaller (only 150K) and simpler.  It doesn't store the state on the viewer side. There are several viewer versions (Java, Windows, etc.).  It is sharable (one desktop can be displayed and used by several viewers at once, allowing CSCW-style applications), it is FREE (including source code).

• www.samba.org - Samba - popular freeware network file system. Most commonly used to run IDE on your Windows computer - but save all your work on Unix.
• http://us1.samba.org/samba/docs/SambaIntro.html - Introduction to Samba
• http://samba.anu.edu.au/cifs/docs/what-is-smb.html - Just what is SMB?

An AFS (Andrew file system) is a location-independent file system that uses a local cache to reduce the workload and increase the performance of a distributed computing environment. Was developed at Carnegie-Mellon University.
• www.transarc.com/ - AFS
• www.angelfire.com/hi/plutonic/afs-faq.html - AFS FAQ

The Network File System (NFS) is a client/server application that lets a computer user view and optionally store and update files on a remote computer as though they were on the user's own computer (mount file system). The user's system needs to have an NFS client and the other computer needs the NFS server. Uses TCP/IP. Was developed by Sun. Can work on Windows as well.
• www.sun.com/netclient/ - Sun's Solstice Network Client product for Windows users includes NFS.
• www.sun.com/webnfs/ - Sun's WebNFS (via Internet).

• www.eng.auburn.edu/users/rayh/solaris/NIS+_FAQ.html - FAQ for NIS+ (Network Information Service Plus).  NIS+ is a replacement for NIS and is a default naming service for Solaris. NIS+ was designed from scratch and is not compatible with NIS. NIS+ increases security.

• www.platinum.com/products/provis/po/asys_pv.htm - AutoSys (PLATINUM) provides powerful job scheduling and management for distributed UNIX and Windows NT environments. AutoSys delivers event-driven scheduling, centralized real-time monitoring, and programmable error recovery.

    LDAP stands for Lightweight Directory Access Protocol. It is a specification for a client-server protocol (over TCP/IP) to retrieve and manage directory information. A directory is like a database. Directories are tuned to give quick-response to high-volume lookup or search operations. They may have the ability to replicate information. There is a server (LDAP daemon - slapd , and the stand-alone LDAP update replication daemon  - slurpd).
    The LDAP directory service model is based on entries. An entry is a collection of attributes that has a name. Each of the entry's attributes has a type and one or more values. Entries are arranged in a hierarchical tree-like structure.
    LDAP is mostly used to search for information in the directory using search filter.  LDAP also can be used to update the directory (adding, deleting, changing  entries).
    LDAP can limit access to data (password protect).
• www.kingsmountain.com/ldapRoadmap.shtml - LDAP
• www.innosoft.com/ldapworld - LDAP

• www.predictive.com/body/r_std.htm - articles on networks, RAID, SCSI, high availability, etc.

TCP/IP (Transmission Control Protocol/Internet Protocol) - basic protocol of the Internet. TCP/IP is a two-layered program. The higher layer, Transmission Control Protocol, manages the assembling of a message or file into smaller packets that are transmitted over the Internet and received by a TCP layer that reassembles the packets into the original message. The lower layer, Internet Protocol, handles the address part of each packet so that it gets to the right destination. Each gateway computer on the network checks this address to see where to forward the message. Even though some packets from the same message are routed differently than others, they'll be reassembled at the destination. TCP/IP is "stateless" because each client request is considered a new request unrelated to any previous one (being stateless frees network paths so that everyone can use them continuously).

TCP/IP "suite" of protocols includes:
• Hypertext Transfer Protocol (HTTP),
• File Transfer Protocol (FTP),
•Telnet (Telnet) which lets you logon to remote computers,
• Simple Mail Transfer Protocol (SMTP).

Addresses on the Internet (IP address) can be written in numeric form (for example 123.456.78.9) or as an easy to remember "domain name" address (for example yahoo.com). DNS (domain name system) is how Internet domain names are located and translated into IP (Internet Protocol) addresses. The lists of domain names and IP addresses are distributed throughout the Internet in a hierarchy of authority.

- www.sangoma.com/fguide.htm - good article on TCP & Routing
- www.zoneedit.com/doc/dynamic.html - dynamic IP
High Availability Systems home - top of the page - email

• www.sun.com/clusters/ - Sun Clusters
• www.compaq.com/services/nt/nt_cluster.html - Compaq NT cluster
• www.veritas.com/us/products/clusterserver/ - Veritas Cluster Server
Storage Area Networks (SAN) home - top of the page - email

• www.Veritas.com -
Misc.Links home - top of the page - email

• www.dtool.com - dTool - Network and Network Security
• Networking Test Suites
• Additional Network Management Information
• The Simple Times Publication for SNMP
• Internetworking Lab Test Suites

• TCP-IP resource List
RMON home - top of the page - email

RMON - Remote Network Monitoring

• www.enterasys.com/products/whitepapers/
• RMON Charter
• NMC RMON Test Suite
• RMON2 Certification
• WinSock Programmers FAQ
• Modem Networking and Communication Links