# # Example host file for TCP/IP server # # This file is free form # Separators are any char <32, 'space' and '=' # Comments are preceeded by # # # The form is keyword=value for each parameter. # The first set of parameters refer to the whole program's defaults. # These parameter values can be in any order. # Following this are the individual machine specs. # If the first machine is name "default", then it contains default # values for the rest of the machines. # # These options are specified for this host machine: # # myname=____.____.____ # my internet name # myip=___.___.___.___ # host machines's IP number # =BOOTP # to use BOOTP to get host info # =RARP # to use RARP to get IP number # netmask=___.___.___.___ # subnetting mask # domain=____.____ # default domain for lookup # nndomto=____ # timeout for domain lookups # nnretry=____ # number of retries for lookup # nnarpto=____ # timeout for ARPs # nndto=____ # timeout for data layer # nnwin=____ # TCPIP upper limit window size # nnseg=____ # TCPIP upper limit input segment size # nnmtu=____ # TCPIP upper limit output transfer size # service=___,___,_____ # TCPIP services specification # logsession=__________ # TCPIP session logging filespec # # # These are the options which may be specified for each # individual machine specification: # # name=____ # name of session # host=____ # full name of host computer # hostip=___.___.___.___ # IP number of host # port=____ # specify initial connection port # nameserver=____ # name server level # gateway=____ # gateway level # retrans=____ # initial retransmit timeout # contime=____ # opening connection timeout # mwin=____ # advertized window size for this host # mseg=____ # maximum advertized input segment size # mtu=____ # maximum output transfer size # delete=backspace # value to use for character deletion # crmap=4.3BSDCRNUL # for 4.3BSD null CR # duplex=half # for half duplex TELNET connections # copyfrom=____ # copy parameters from this name # myname=shop-pdp.kent.edu myip=131.123.1.153 # required, this machine's IP number netmask=255.255.255.0 # subnetting mask domain="kent.edu" # domain name search path nndomto=1 # domain timeout nnretry=4 # number of retries nnarpto=1 # arp timeout in seconds # affects machines on your local network # The following line specifies the TCPIP logging file # which will contain information for each session started. logsession=du0:tcpip.log[100] # The following are services supported by TCPIP. # Each entry contains the listen port, maximum number of # sessions and the name of the command file to initiate # the service. service=21,2,sy:rftp.srv # remote ftp server service=23,2,sy:rtelnt.srv # remote telnet server service=25,2,sy:rsmtp.srv # remote smtp server service=27,2,sy:rcnct.srv # remote cnct server # # Following are individual machine specifications # Gateways are used in the order that they appear in the file # Nameservers rotate, #1, #2, #3, #1, #2 when a request fails # # The machine named "default" contains the fields which are automatically # filled in for later hosts # name=default # Session name, "default" is a reserved name # Not a real machine, default parameters only delete=backspace # Assume mostly UNIX connections # The following entries affect the tuning of TCP connections to this host. # They should be set by the network administrator who is familiar with # the requirements of your specific network. contime=12 # timeout in seconds to try connection # before returning error to user retrans=5 # starting retransmit time out in seconds mtu=1408 # maximum transmit unit in bytes # outgoing packet size, MAX=1408 mseg=1408 # largest segment we can receive # whatever the hardware can take, MAX=1408 mwin=2816 # most bytes we can receive without ACK # =TCP window size, MAX=3071 # larger isn't always better # # Below this line, most of the communication parameters are obtained # from the "default" host entry. # Machine names, IP addresses, and special communication parameters are # present when needed. # name=mygateway host=ksupra.kent.edu hostip=131.123.1.3 gateway=1 name=vaxa host=ksuvxa.kent.edu hostip=131.123.1.1 delete=delete nameserver=1 name=mathserver host=mcs.kent.edu hostip=131.123.2.130 nameserver=2 name=vaxd host=ksuvxd.kent.edu hostip=131.123.1.156 copyfrom=vaxa name=scorpio host=scorpio.kent.edu hostip=131.123.1.50