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CRDSS <br />TASK MEMORANDUM 1.05-19 <br />Study of System Integration Issues <br />Internet - General Use of in CRDSS <br />1.0 ISSUE <br />RTi is connected to the Internet via a 56Kbps dedicated line from CSU. This connection allows RTi <br />to use the E-mail, file transfer, and remote login capabilities of the CRDSS workstations. The <br />Internet feed from CSU is controlled by an intelligent router that only allows predetermined sites to <br />communicate with RTi via the Internet. Only sites which are needed for the CRDSS work (including <br />data sources, knowledge sources, software/hardware support, and project team members) are on the <br />access list. RTi has an internal network that allows all workstations and PCs to communicate with <br />the CRDSS workstations. <br />The State is connected to the Internet via a 56Kbps connection supplied by Colorado SuperNet. The <br />State maintains an internal network that allows their workstations and PCs to communicate. <br />The following general issues will be discussed in this task memorandum: <br />How will E-mail be implemented and used? <br />? <br />How will disk resources be shared? <br />? <br />How will devices be shared? <br />? <br />How will file transfers be made? <br />? <br />How will programs run in client-server mode? <br />? <br />How can programs be run on one machine while displaying on another machine? <br />? <br />How are PCs to be used in the CRDSS? <br />? <br />2.0 DISCUSSION/ANALYSIS <br />The use of Internet for the CRDSS work will generally take advantage of existing UNIX and third- <br />party software. Most of the discussion in this task memorandum refers to specific UNIX software <br />products but does not attempt to explain those products in detail. If more detail is needed, it is <br />suggested that the UNIX system documentation be consulted. The UNIX books by O'Reilly & <br />Associates, Inc., are also very good references. <br />The State has said that the Internet will eventually be used to connect all important remote offices <br />(e.g., water district offices). However, it is unclear whether a schedule for implementing this <br />communication has been created. RTi assumes that remote sites that wish to access the CRDSS will <br />have access to the Internet. <br />1 <br />A275 05.10.94 1.05-19 Malers <br />