Links

IBM Links

http://www-1.ibm.com/servers/eserver/support/zseries/index.html: zSeries and S/390 Technical Support. From here you can access technical data, fixes, and publications.
http://publibz.boulder.ibm.com/cgi-bin/ bookmgr_OS390/BOOKS/IEA1B604/CCONTENTS?DT=19970715180443: IBM's JCL manual online
http://www-1.ibm.com/servers/eserver/zseries/zos/bkserv/: IBM z/OS Internet Library
http://www.redbooks.ibm.com/: The IBM Redbooks home page. Redbooks are additional books written by various experienced IBM system programmers (not necessarily from IBM), and they tend to be more 'how to' oriented, including specific examples of things like VTAM and IOCP definitions.

http://www.aceshardware.com/read.jsp?id=50000316: A general overview of IBM mainframes
http://www.okstate.edu/cis_info/cis_manual/jcl_toc.html: Job Control Language (JCL) Introduction
http://www.geocities.com/~oberoi/mainfrme.html: A page full of links to mainframe-related information.
http://www.InstantWeb.com/l/loriaux/s390/: Loriaux's System/390 home page. A "Mainframers meeting point."

http://www.dcbnet.com/notes/9611t1.html: All You Wanted to Know About T1 Connections, But Were Afraid to Ask
http://www.dcbnet.com/notes/framerly.html: Frame Relay overview
http://www.nationalisdncouncil.com/index.html: National ISDN Council
http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/ibmsnaro.htm: Overview of routing SNA by Cisco

http://www.garykessler.net/library/tcpip.html: An extremely valuable overview of TCP/IP and the Internet
http://www.iana.org/assignments/port-numbers: A list of well known TCP and UDP port numbers
http://www.ietf.org/rfc/rfc1179.txt: The RFC (Request for Comments) regarding the Line Printer Daemon Protocol (LPD)
http://www.ietf.org/rfc/rfc959.txt: The RFC (Request for Comments) regarding the File Transfer Protocol (FTP)
http://www.ietf.org/rfc/rfc1795.txt: The RFC (Request for Comments) regarding Data Link Switching (DLSw)

http://www.yale.edu/pclt/COMM/SNA.HTM: Introduction to SNA
http://www.cisco.com/en/US/tech/tk331/tk341/tech_brief09186a00800b4258.html: Cisco technology Brief on SNA

http://supportweb.netmanage.com/: FTP Software (now NetManage) Help Desk and Knowledge Base
http://supportweb.netmanage.com/ts_viewnow/downloads/param.asp: FTP Software's (now NetManage) PC/TCP Kernel Software "Configuration Parameter Reference" document

http://www.i18nguy.com/unicode/codepages.html: Documentation on all popular code pages, including various ASCII and international code pages.
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=bpl02705: Lists the HP LaserJet PCL printer commands for basic page formatting and font selection..
http://www.xerox-techsupport.com/: Information, FAQs, and PDFs dealing with Xerox enterprise production printers, including all LPS, NPS, IPS, and EPS models. Also contains information on XPAF.
http://www.xerox-techsupport.com/cgi-bin/Ultimate.cgi: Xerox production printer user forums
http://www.unicode.org/: Unicode Home Page. Contains information and documentation on Unicode.
http://www.unicode.org/unibook/: The Unibook Character Browser is a freeware code page encyclopedia that allows you to look up all of the Unicode characters and their respective graphic symbols. It is handy for troubleshooting code page issues.

http://www.ntfaq.com: http://www.ntfaq.com
http://www.microsoft.com/technet/: Microsoft Technet
http://support.microsoft.com/default.aspx?scid=KB;en-us;q216206: Blue Screen or STOP Error Message Troubleshooting
http://www.microsoft.com/technet/treeview/default.asp?url=/TechNet/prodtechnol/winntas/tips/techrep/bsod.asp: Demystifying the "Blue Screen of Death"

http://www.kbalertz.com/technology.aspx?tec=189: Links to all Microsoft knowledge base articles on SNA Server
http://www.kbalertz.com/technology.aspx?tec=73: Links to all Microsoft knowledge base articles on Host Integration Server