Internet Services:What's the Big Deal?

• rcp source_machine:file_name target_machine:file_name
  copies from one Unix system to another (CNS <-> CIS). The command in the example below copies file test.txt from CNS's public machine abc to the current (CIS) machine to the current directory.

  rcp abc:test.txt test.txt

• finger user
  provides information about user. In the example below, command:

  finger schmidt@cis.ksu.edu

  produced the following output:

  ---

  Login: schmidt                          In Real Life: Dave Schmidt
  Directory: /home/faculty/schmidt        Shell: /bin/csh
  Mail forwarded to "|IFS=' ';/usr/local/bin/procmail #schmidt".
  New mail since Mon Sep  8 13:31:30 1997
  Has not read mail for 1 day, 22:43:06.
  Dave Schmidt (schmidt) is not presently logged in.
  Last seen at helios on Sun Jul 20 11:09:48 1997
  
  Plan:
  
  David Schmidt
  Postal address:  Computing and Info. Sciences Dept.
                   Nichols Hall 234
                   Kansas State University
                   Manhattan, KS 66506
  
  Office phone: 785-532-6350
  FAX:          785-532-7353
  Home phone:   785-537-1933
  
  WWW URL:  http://www.cis.ksu.edu/~schmidt/
  
  =====================================================================
  
  Schedule for autumn, 1997: 
    will appear Real Soon Now....
  

  ---

  Place personified finger information in file .plan and made the file world readable (chmod r+go .plan)

• rsh machine
  connection (login) from a Unix machine to a remote Unix machine. Used for:
  • Access KSU from home or on the road
  • Access remote supercompter centers
  • Access remote databases

• talk user@machine
  online direct communication (phonecall in cyberspace): screen is divided into two parts. In upper part your party's typing appears, in the lower - yours.

• telnet machine
  login from any machine to a Unix machine. Windows'95 and NT come with a telnet program.

• ftp ftp_server
  browse and retrieve material stored on ftp_server. If the server allows anonymous address - specify anonymous as login and you e-mail address as password. CIS anonymous ftp server is ftp.cis.ksu.edu: Netscape understands anonymous ftp. Ftp is used to store:
  • Research papers
  • Course materials
  • Multimedia resources
  • Software, etc.

• Email (Virtual office hours)

  Mail Reading Programs:
  

  • pine - simple, ugly
  • elm - flexible, obsolete
  • mutt - newest, powerful
  • netscape- uniform, restrictive

  Automatic mail forwarding: create a .forward file and place there the address you want your mail forwarded to. Avoid mail loops!

  Automatic mail sorting:
  

  • filter - simpler, dumb
  • procmail - powerful, cryptic

  my mail sorting files can be used as examples:

  • /home/grads/phd/mikhail/.forward
  • /home/grads/phd/mikhail/.procmailrc

• mailing lists, Usenet news

  News Readers:
  

  • nn, rn - old, powerful, weird
  • xrn - in between. best value!
  • netscape - newest, restrictive