Acorn User: China/Acorn User China CD-ROM (UK) (Disc A)/Acorn User China CD-ROM (UK) (Disc A).bin/DEMON/DEVELOPER/NETCONF0.ARC/!NetConfig_Resources_TCPconfig

Text File | 1995-08-11 | 20.9 KB | 382 lines

# !TCPIPUser.Config
# File of initial configuration settings, read when !TCPIP starts up.

terminal * @main W
                                # Attach macro menu "main" to the main
                                # command window, set cursor wrap mode on.

# Supply some information about your particular machine

set node "{{net_account}}"
                                # Your machine name (e.g., "fubar" if your
                                # fully-qualified domain name is
                                # fubar.demon.co.uk).

set domain "{{net_domain}}"
                # Domain used by your service provider
                                # (e.g., "demon.co.uk" if your fully-
                                # qualified domain name is
                                # fubar.demon.co.uk.

set host "{node}.{domain}"
                                # Host name is constructed by TCPIP from
                                # the values of {node} and {domain}
                                # defined above.

@if net_fixed_ip$>""
set ip_addr "{{net_ip_address}}"
                                # Your IP address (e.g., "158.152.9.18"
                                # without square brackets).
@else
# For dynamically assigned IP addresses, the variable ip_addr is set
# automatically from the system variable TCPIP$String$ip_addr, which is
# in turn set by !SLIPdial at login time.
@endif

hostname {host}
                                # Tell TCPIP what your hostname is, using
                                # the value of {host} defined above.

ip address [{ip_addr}]
                                # Tell TCPIP what your IP address is,
                                # based on the value of {ip_addr}
                                # defined above (if you have a fixed IP
                                # address) or passed by SlipDial (if
                                # you have a dynamic IP address).

domain suffix {domain}
                                # Allows you to refer to the machines of
                                # other subscribers to your provider
                                # by their node name (e.g., if the domain
                                # is "demon.co.uk" you can use "finger
                                # foo" instead of
                                # "finger foo.demon.co.uk").

set nsqserver "{{net_nsq_server}}"
                                # Server to use for name-server queries
                                # entered via the NSQuery macro menu.
                                # Such queries are for human use (i.e.,
                                # finding out aliases of machines) and
                                # are not used by TCPIP, so it is not
                                # vital.

# A whole load of TCPIP defines coming up so the meaning of the attach
# parameters can be clearly commented.

set driver "{{net_serial_driver}}"
                                # Serial Block driver name (as given in
                                # !SerialDev.modules, such as Internal,
                                # II_Dual, SP_Dual, etc.).  Which one
                                # you use depends on whether you are using
                                # the internal (in-built) serial port or
                                # an Intelligent Interfaces dual serial
                                # port card or a dual serial port card from
                                # The Serial Port.  Some drivers have a
                                # PC variant which means you are using
                                # a PC-style serial cable rather than an
                                # Acorn-style cable (which uses special
                                # wiring to get round problems with the
                                # internal serial port on earlier models).
                                # Later models (A5000 and later) can use
                                # either style of cable provided you choose
                                # the appropriate block driver.

set port "{{net_port}}"
                                # Serial port number (Internal is always
                                # zero, II_Dual and SP_Dual can be 0 or 1 -
                                # or higher if you have more than one dual
                                # serial port cards).

set protocol "{{net_ka9q_protocol}}"
                                # Protocol to talk down the line.  At
                                # present TCPIP understands both slip and
                                # cslip, but not ppp (or its variants such
                                # as nolqm).  Cslip is more efficient if
                                # your provider offers it.
                                # Note that with most providers, if you
                                # wish to use cslip you set the protocol
                                # here to be cslip but when you connect
                                # you tell your provider you are using
                                # slip and their software auto-detects
                                # whether you are using slip or cslip -
                                # in fact your provider's s/w may not
                                # understand if you answer cslip when you
                                # connect.

set speed "0"
                                # Serial port speed, or "0" to leave at
                                # current setting (0 is strongly
                                # recommended).

set mtu "{{net_mtu}}"
                                # Maximum transmission unit.  For most
                                # uses a value of 576 is recommended.  Note
                                # that tcp mss (set later) should be 40
                                # less than mtu (so if mtu is 576 then
                                # tcp mss should be 536).
                                # For ethernet a value of 1500 is more
                                # efficient.

attach asy {driver} {port} {protocol} sl0 2048 {mtu} {speed}
                                # Tell TCPIP to attach the serial port.

route add default sl0 [{{net_router}}] 1
                                # Note that with slip or cslip, the IP
                                # address you use here doesn't really
                                # matter.  It will matter if PPP support
                                # is added.

ip ttl 64
                                # Number of hops before an IP packet is
                                # considered to be dead - it is assumed
                                # that no machine on the internet is more
                                # than 64 hops away so that any packet
                                # which exceeds this is stuck in a routeing
                                # loop.  Lower values are appropriate for
                                # packet radio and ethernet connections,
                                # but you should not consider altering
                                # this for internet use unless you *really*
                                # know what you are doing.

tcp mss 536
                                # Maximum size of TCP packets.  Since
                                # these are wrapped in IP packets and
                                # IP packets have a 40-byte header, this
                                # value should be 40 less than the size
                                # of the IP packet set by the "set mtu"
                                # command above.

tcp irtt 5000
                                # A guess at the round-trip time of packets
                                # in milliseconds.  When a connection is
                                # initiated it is assumed that any packet
                                # which is unacknowledged within this
                                # time has gone missing.  After a packet
                                # has been acknowledged TCPIP will use
                                # an average of the actual round-trip times
                                # instead.  This initial guess at the
                                # round-trip time prevents a flurry of
                                # retransmission when a new connection
                                # starts on a slow channel.  Do not alter
                                # unless you know what you're doing.

tcp window 21440
                                # This command allocates a block of memory
                                # for each incoming connection to use as
                                # a buffer.  The higher it is, the better
                                # the throughput (particularly on a slow
                                # connection), but the more memory used
                                # by TCPIP for each incoming connection.
                                # Should be a multiple of tcp_mss to avoid
                                # wasting memory.

tcp hangup 60 10
                                # TCPIP will automatically check for
                                # activity every 60 seconds and hangup
                                # if there have been 10 consecutive checks
                                # with no activity.  The values here
                                # assume you are web browsing, with long
                                # periods of inactivity whilst you read
                                # the page.  If you don't browse the web
                                # then something like 15 and 3 may be
                                # better at saving your phone bills.
                                # You can disable the check by making
                                # either or both values 0.
                                # Note that this only works if your modem
                                # has been configured to hang up when DTR
                                # drops.

resolve timeout 5
                                # Time, in seconds, TCPIP will wait for
                                # a DNS query to be answered before trying
                                # a different server.  A low value is
                                # best if your provider's servers are
                                # unreliable, a high value (such as 30) is
                                # better if they are heavily loaded.

resolve names yes
                                # Show any host information by name
                                # rather than IP address.  This is
                                # much more useful but does slow things
                                # down somewhat.  Use no instead of yes
                                # if you prefer speed.

# Start up server tasks to respond to various requests (not actually separate
# Wimp tasks)

start echo                         # Start the echo server.
start discard                      # Start the discard server.

# Uncomment the next line to let outsiders download/upload files from/to
# your machine.
#start ftp                          # Start the ftp server which allows
                                   # others to transfer files to and from
                                   # your machine.  Note that you must also
                                   # set up !TCPIPUser.FTP.users accordingly.

@if net_mail_protocol$="SMTP"
start smtp                         # Allow incoming mail to be delivered to
                                   # your machine by SMTP.
@endif

start finger                       # Allow outsiders to find out information
                                   # about users on your machine by fingering
                                   # it.  Note: you make such information
                                   # available about a user (say "fred") by
                                   # creating a textfile called
                                   # !TCPIPUser.finger.fred.

start telnet                       # This allows other people to telnet to
                                   # your machine.  On other systems this
                                   # would allow them to login, but this
                                   # is not possible on the Arc so an incoming
                                   # telnet starts up a chat window so you
                                   # can talk to them.  You may wish to
                                   # disable this by commenting it out.

start telnet 87                    # This allows people to telnet to your
                                   # machine using the well-known chat port,
                                   # which starts up a chat window.  Your
                                   # provider may attempt to contact you in
                                   # this way if they have to shut down the
                                   # PoP you are connected to, so you are
                                   # advised not to disable it.

# Various settings controlling fetching of Usenet news

nntp trace 2                       # Define level of tracing information when
                                   # downloading news.  2 is a sensible value
                                   # for day-to-day use.

nntp dup hist                      # Instruct TCPIP to keep a history file
                                   # of downloaded message IDs to prevent
                                   # duplicate news articles appearing.
                                   # If you use ReaderS to read news you may
                                   # prefer "nntp dup readers", although this
                                   # has disadvantages as well as advantages.

nntp trim 48                       # Delete any message ID from the history
                                   # file that is older than 48 hours.  This
                                   # is a sensible value in case your
                                   # provider's ever has problems and you
                                   # have to set the time of the last download
                                   # back a day to get missing articles.

nntp fudge 120                     # This value, in seconds, is used to adjust
                                   # the time of your last news download
                                   # backwards to allow for clock drift on
                                   # your machine or the news server.

nntp direct on                     # Articles are written directly to the
                                   # news batch instead of via a scrap file.
                                   # There is only a marginal improvement in
                                   # setting this off if Wimp$Scrap is on a
                                   # RAM disc, so you may as well leave it on.

nntp batch 12                      # Number of simultaneous news article
                                   # requests that may be made.  A slight
                                   # improvement will be seen by increasing
                                   # this to the maximum of 16.

nntp newgroups yes                 # List to a file all the new newsgroups
                                   # which have been created since you last
                                   # downloaded news.

nntp retry 2 100                   # If the news server rejects your connection
                                   # because of loading, TCPIP will
                                   # automatically retry every 2 seconds, and
                                   # will make up to 100 attempts to connect
                                   # if necessary.  Setting either parameter
                                   # to 0 will disable this.

# Some settings to do with sending and receiving mail

smtp trace 1                       # Define level of trace information when
                                   # sending mail.

smtp sep rm                        # Separator used between messages in your
                                   # smtp mailboxes.  The default is "From "
                                   # but the rm separator is more efficient
                                   # if your mail reader understands it.
                                   # Do not change whilst you have mail
                                   # that has not been transferred to your
                                   # mailer, or your mailer will get confused.

pop trace 1                        # Define level of trace information when
                                   # receiving POP mail.

pop sep rm                         # As for smtp sep (see above) but used for
                                   # POP mailboxes.

# Options for FTP sessions

ftpopt prompt long                 # Make the prompt in ftp sessions show
                                   # the full directory name.  Alternatives
                                   # are "short" (show just the last element
                                   # of the path) and "nodir" (show just an
                                   # "ftp>" prompt.

ftpopt trace 0                     # Do not display reply codes from ftp
                                   # server (change to 1 to see full reply
                                   # codes).

ftpopt winsize 80 200 80 24        # Make ftp session windows open up
                                   # with a work area of 80 columns by 200
                                   # rows and a visible size of 80 columns
                                   # by 24 rows.
                                   # You may omit trailing parameters and
                                   # will get default values for those
                                   # parameters omitted - default values are
                                   # 80 24 80 24 (so the command could have
                                   # been specified as just "ftpopt winsize
                                   # 80 200").

ftpopt path auto                   # Use the automatic path processing defined
                                   # in !TCPIPUser.FTP.PathEnt - this controls
                                   # translation from file extensions to RISC
                                   # OS filetypes, placement of downloaded
                                   # files in various directories depending on
                                   # filename and extension (so fred.jpg will
                                   # appear as a file called fred of filetype
                                   # JPEG in directory Images)
                                   # Alternatives to "auto" are "type" which
                                   # just translates extensions to RISC OS
                                   # filetypes and "off" which replaces the
                                   # "." extension separator by "_" and
                                   # truncates the result as necessary.
                                   # Auto is the best choice...

ftpopt type image                  # Make ftp sessions start up in image
                                   # (binary) mode.  A text file transferred
                                   # in binary mode may have the wrong end-of-
                                   # line markers, but a binary file
                                   # transferred in text mode will be
                                   # corrupted, so this is safest.

ftpopt hash 1                      # Show a running byte count (and percentage
                                   # if the remote server indicates the size
                                   # of the file).  Alternatives are "0" which
                                   # turns off any indication and any number
                                   # higher than one which prints a #-sign
                                   # each time that number of bytes has been
                                   # transferred.

set ftpuser  "ftpuser"             # Used to construct your password when you
                                   # connect to another machine by anonymous
                                   # ftp (e.g., "xyz" - this is used as
                                   # xyz@{host} and the value of {host} is
                                   # expanded by the ftp script).
                                   # This user will be mailed by the ftp
                                   # site if, for instance, there is a
                                   # problem with a file you have downloaded
                                   # (such as a virus).

log <TCPIP$Dir>.logfile            # Log events to a logfile.  Note that you
                                   # must check and delete it periodically
                                   # or it will fill your hard disc.  Also
                                   # note that you will hardly ever examine
                                   # it once you are happy your setup is
                                   # working correctly so you may as well turn
                                   # logging off (by commenting this line out)
                                   # once everything is OK.