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Configure AS/400 for TCP/IP Applications Chapter 4

Configure AS/400 for TCP/IP Applications Chapter 4. MULTIPLE PROTOCOLS. Can run simultaneous in OS/400 It is very common to have APPC and TCP/IP active at the same time APPC to support business applications TCP/IP for TELNET and FTP More configuration required to for LPD and SMTP.

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Configure AS/400 for TCP/IP Applications Chapter 4

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  1. Configure AS/400 for TCP/IP ApplicationsChapter 4

  2. MULTIPLE PROTOCOLS • Can run simultaneous in OS/400 • It is very common to have APPC and TCP/IP active at the same time • APPC to support business applications • TCP/IP for TELNET and FTP • More configuration required to for LPD and SMTP

  3. GO CFGTCP CFGTCP Configure TCP/IP Select one of the following: 1. Work with TCP/IP interfaces 2. Work with TCP/IP routes 3. Change TCP/IP attributes 4. Work with TCP/IP port restrictions 5. Work with TCP/IP remote system information 10. Work with TCP/IP host table entries 11. Merge TCP/IP host table 12. Change TCP/IP domain information 20. Configure TCP/IP applications 21. Configure related tables 22. Configure point-to-point TCP/IP

  4. GO CFGTCP - Option1 Type options, press Enter. 5=Display Internet Subnet Line Line Opt Address Mask Description Type ---- 127.0.0.1 255.0.0.0 *LOOPBACK *NONE --- 142.204.57.104 255.255.255.192 ETHERNET *ELAN --- 142.204.57.105 255.255.255.192 FIBER *ELAN Required for internal processing and testing!!

  5. GO MAIN, 6, 4 or GO CFGCMN CFGCMN Configure Communications and Remote Hardware System: ODIN Select one of the following: 1. Work with lines 2. Work with communications controllers 3. Work with work station controllers 4. Work with communications devices 5. Work with printers 6. Work with display stations 7. Work with modes 8. Work with classes-of-service 9. Work with configuration lists 10. Work with network interfaces 11. Work with connection lists 12. Work with network servers 13. Work with NetBIOS descriptions More...

  6. WRKLIND Work with Line Descriptions System: ODIN Position to . . . . . Starting characters Type options, press Enter. 2=Change 3=Copy 4=Delete 5=Display 6=Print 7=Rename 8=Work with status 9=Retrieve source Opt Line Type Text ETHERNET *ELAN FIBER *ELAN FIBER ETHERNET CONNECTION QESLINE *SDLC QTILINE *SDLC Q1PLIN *SDLC PM iSeries line

  7. WRKLIND, 5 Display Line Description Line description . . . . . . . . . : ETHERNET Option . . . . . . . . . . . . . . : *BASIC Category of line . . . . . . . . . : *ELAN Resource name . . . . . . . . . . : CMN03 Online at IPL . . . . . . . . . . : *YES Vary on wait . . . . . . . . . . . : *NOWAIT Network controller . . . . . . . . : ETHERNET Local adapter address . . . . . . : 0006299CF0B1 Exchange identifier . . . . . . . : 05667200 Ethernet standard . . . . . . . . : *ALL Line speed . . . . . . . . . . . . : 100M Current line speed . . . . . . . . : 100M Duplex . . . . . . . . . . . . . . : *FULL Current duplex . . . . . . . . . . : *FULL Maximum frame size . . . . . . . . : 1496 Maximum controllers . . . . . . . : 40

  8. Configure TCP/IP applications SNMP - Simple Network Management Protocol FTP - File Transfer Protocol TELNET - Character mode client to server port connection SMTP - Simple Mail Transfer Protocol LPD - Line Printer Deamon HTTP - HyperText Transfer Protocol WSG - WorkStation Gateway POP - Post Office Protocol

  9. Go CFGTCP, 20 Configure TCP/IP Applications Select one of the following: 1. Configure SNMP agent 2. Configure RouteD 4. Configure BOOTP 5. Change DDM TCP attributes 10. Change FTP attributes 11. Configure TELNET 12. Configure SMTP 13. Change LPD attributes 16. Change POP attributes 17. Change REXEC attributes

  10. Configuring SNMP SNMP provides network management capabilities. An AS/400 CAN BEa managed system in an SNMP managed network, but the AS/400 CAN NOT be an SNMP manager. CHGSNMPA ( WRKCNTINF) CFGTCPSNMP Work with communities for SNMP ADDCOMSNMP CHGCOMSNMP RMVCOMSNMP

  11. Configuring FTP • When the AS/400 acts as a server, it allows clients to access physical, logical, source and save files and members stored on the system • When files are transferred to a client system , the AS/400 automatically translates them from EBCDIC to ASCII, but files can also be transferred without translation.

  12. Configuring FTP CHGFTPA autostart *yes (STRTCP) *no (STRTCPSVR) . FTP server doesn’t need to be active for the AS/400 to initiate a file transfer, either to or from the AS/400. . The only need for the FTP server to be active on the AS/400 is for a remote system to initiate a file transfer to or from the AS/400. . NBRSVR: The default FTP servers to be started automatically is three. (1----20) . INACTTIMO: The default number of seconds that an FTP connection can remain idle before the AS/400 disconnects the FTP connection is 300 seconds. (0----68years) 0 = NO Timeout

  13. Change FTP Attributes (CHGFTPA) Type choices, press Enter. Autostart servers . . . . . . . AUTOSTART *SAME Number of initial servers . . . NBRSVR *SAME Inactivity timeout . . . . . . . INACTTIMO *SAME Coded character set identifier CCSID *SAME Outgoing EBCDIC/ASCII table: TBLFTPOUT Outgoing EBCDIC/ASCII table . *SAME Library . . . . . . . . . . Incoming ASCII/EBCDIC table: TBLFTPIN Incoming ASCII/EBCDIC table . *SAME Library . . . . . . . . . . Initial name format . . . . . . NAMEFMT *SAME Initial directory . . . . . . . CURDIR *SAME Initial list format . . . . . . LISTFMT *SAME New file CCSID . . . . . . . . . CRTCCSID *SAME Subsystem description . . . . . SBSD *SAME Library . . . . . . . . . . . Allow secure sockets layer . . . ALWSSL *SAME

  14. Configuring TELNET • CFGTCPTELN = TELNET • CHGTELNAautostart *yes (STRTCP) *no (STRTCPSVR) The default Telnet server to be started automatically is one. You can start additional Telnet servers by using the command : STRTCPSVR SERVER(*Telnet) INACTTIMO: The default number of seconds that an Telnet connection can remain idle before the AS/400 disconnects the Telnet connection is 0 seconds, meaning idle connections will not be broken. (Valid range: 0----68years) 0 = No Timeout

  15. Change TELNET Attributes (CHGTELNA) Type choices, press Enter. Autostart server . . . . . . . . *SAME *YES, *NO, *SAME Number servers . . . . . . . . . *SAME 1-200, *SAME, *CALC Session keep alive timeout . . . *SAME 0-2147483647, *SAME, *CALC... Default NVT type . . . . . . . . *SAME *SAME, *VT100, *NVT Coded character set identifier *SAME 1-65533, *SAME, *MULTINAT... ASCII fullscreen mapping: Outgoing EBCDIC/ASCII table . *SAME Name, *SAME, *CCSID, *DFT Library . . . . . . . . . . Name, *LIBL, *CURLIB Incoming ASCII/EBCDIC table . *SAME Name, *SAME, *CCSID, *DFT Library . . . . . . . . . . Name, *LIBL, *CURLIB Allow Secure Socket Layer . . . *SAME *YES, *NO, *ONLY, *SAME

  16. Configuring Telnet • Changing Telnet related system values • QAUTOVRT QLMTSECOFR QINACTITV QINACTMSGQ QLMTDEVSSN QMAXSGNACN QMAXSIGN QRMTSIGN QDEVRCYACN QDSCJOBITV .The number of attempts a hacker can try to break into AS/400 system is: QAUTOVRT * QMAXSIGN

  17. Configuring SMTP • SMTP is used to transfer mail between host. • POP3 is used to transfer mail from a host to a client. • AS/400 supports both SMTP and POP3.

  18. Configuring SMTP • SNADS (System Network Architecture Distribution Services) is a vital component for e-mail on the AS/400. • SNADS is an SNA- based process to provide the routing and addressing functions for SMTP. • SNADS is the message distribution system that has been available on the AS/400 since its inception. • SNADS offers base functionality for message storage and forwarding within an AS/400.

  19. Configuring SMTP • SMTP provides for direct interaction but also has a spooling component to hold the mail until it is requested. • POP3 process assumes that the server maintains the mail for the client.POP3 accesses and downloads the mail dynamically when the user on the client system wants to receive it.

  20. Configuring SMTP • Incoming SMTP mail is sent to the AS/400 using the AS/400’s host and domain name specified in the TCP/IP configuration. • It’s critical that the AS/400 host and domain name reside in both the host table on the AS/400 as well as in the local domain and host name entry. • The AS/400 stores ,routes and forwards the mail message. • The content of the message is not important (attachments, graphics, fonts……are not of concern to AS/400. • The client is responsible for the proper display of the message.

  21. SMTP -- SNADS • SMTP– SNADS interaction is used to route the mail to the appropriate user’s mailbox. • SMTP receives incoming mail and forwards it to SNADS, which then places the mail in the appropriate storage area on the AS/400. • Outgoing mail is sent to SMTP , which forwards it to SNADS for delivery.

  22. SMTP -- SNADS • You need SNADS distribution queues and TCP/IP routing table entries for proper processing of incoming/outgoing mail. • SNADS distribution queues and TCP/IP routing table entries are created automatically when the TCP/IP connectivity utilities are installed.

  23. SMTP alias table • Personal alias table Identifies only an SMTP address for a given user • System alias table Identifies the address for all users • WRKNAMSMTP Add, change, remove ,display ,print the alias table entries

  24. The commands you should know • CHGSMTPA CHGTELNA • CFGTCPSMTP ADDDIRE • CHGPOPA CHGDIRE • WRKDIRE RMVDIRE • WRKDSTQ RNMDIRE • CFGDSTSRV

  25. STRTCP - 1 Start TCP/IP (STRTCP) Where allowed to run: All environments (*ALL) • The Start TCP/IP (STRTCP) • command initializes and activates TCP/IP processing • starts the TCP/IP interfaces • starts the TCP/IP server jobs • starts the TCP/IP Point-To-Point (PTP) profiles. A STRTCP command must be issued before any TCP/IP processing can be performed on the iSeries. This includes Simple Network Management Protocol (SNMP) agent processing. • The TCP/IP interfaces that are started are those that have set the AUTOSTART parameter to a value of *YES using the Add TCP/IP Interface (ADDTCPIFC), the Change TCP/IP Interface (CHGTCPIFC) commands, or the iSeries Navigator. • The Change IPL Attributes (CHGIPLA) command with the STRTCP parameter set to a value of *YES can be used to automatically submit the STRTCP command at the completion of IPL.

  26. STRTCP - 2 • The Start TCP/IP command only starts a TCP/IP application job if the AUTOSTART attribute in the application's configuration is set to *YES when the command is issued.. • When the STRTCP command is issued, the QTCPIP job in the QSYSWRK subsystem is started. The QTCPIP job is used for activating and deactivating TCP/IP interfaces. • This command calls different programs to process each type of TCP/IP server. • Parameters • Keyword Description Choices Notes • STRSVR Start application servers *YES, *NO Optional • STRIFCStart TCP/IP interfaces *YES, *NO Optional • STRPTPPRFStart point-to-point profiles *YES, *NO Optional

  27. STRTCP - 3 • Start application servers (STRSVR) • Specifies whether or not TCP/IP application servers are started by the Start TCP/IP (STRTCP) command. • *YES • The STRTCP command starts all TCP/IP application servers with a configuration attribute of AUTOSTART(*YES) when TCP/IP is activated. • *NO • The STRTCP command does not start any TCP/IP application servers when TCP/IP is activated. • Note: This parameter can be used when TCP/IP application servers using AnyNet are already active on your system and you intend to also activate TCP/IP. STRTCP STRSVR(*NO) activates TCP/IP processing without starting additional TCP/IP servers. • When TCP/IP or AnyNet is already active, use the Start TCP/IP Server (STRTCPSVR) command to start additional TCP/IP application servers.

  28. STRTCP - 4 • Start TCP/IP interfaces (STRIFC) • Specifies whether or not to activate all TCP/IP interfaces that specify AUTOSTART(*YES) when TCP/IP is activated. • *YES • When the QTCPIP job is started by the STRTCP command, the job will attempt to activate all TCP/IP interfaces for which AUTOSTART(*YES) is specified. • *NO • The AUTOSTART(*YES) interface parameter will be ignored. No TCP/IP interfaces will be automatically started. • Note: Specifying STRIFC(*NO) only inhibits the activation of TCP/IP interfaces. It has no effect on interfaces for other AnyNet protocols such as IP over SNA or IP over IPX. • Start point-to-point profiles (STRPTPPRF) • Specifies whether or not to activate all point-to-point profiles that specify a configuration attribute of AUTOSTART(*YES) when TCP/IP is activated. • *YES • As part of the running of the STRTCP command, the Start Point-to-Point TCP/IP (STRTCPPTP) command will also be run. The STRTCPPTP command will attempt to start all of the point-to-point profiles with a configuration attribute of AUTOSTART(*YES). • *NO • The STRTCPPTP command will not be run.

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