ip/tftpd [-dr] [ -p port ] [ -h homedir ] [ -x network ]

Dbfile is in ndb(6) format, as interpreted by attrdb(2). Bootpd uses the following attributes:

auth

authentication server name or address

bootf

name of the client's boot file

dom

fully-qualified domain name

ether

hardware (MAC) address; only Ethernet is supported

fs

file server name or address

ip

client's Internet address

ipgw

gateway from client's subnet (IP address)

ipmask

subnet mask

ipnet

network name

sys

system name (client identifier)

Bootpd replies to an incoming request only if its hardware address matches the value of the ether attribute of an entry in dbfile . If found, the reply contains all the other requested data that is contained in the entry; if an item is missing, it is sought in the entries for successively higher networks (described by ipnet entries) that contain the requesting system's address. The `vendor specific' part of the reply conveys the file server and authentication server addresses to Inferno clients. Before answering a request, bootpd rereads dbfile if it has changed since last read.

The -s option causes bootpd to sniff the network for BOOTP traffic and print it, but not reply. The -d option prints debugging information; giving it twice prints even more. The -x option tells bootpd to use a network other than /net. Currently bootpd prints a message to standard output each time it replies; the -q option keeps it quiet.

Tftpd is mainly used to send kernels and configuration files to machines booting from the network. It listens for incoming TFTP file transfer requests on the given UDP port (default: 69) and responds by sending or receiving a file as requested. Homedir is the current directory for transfers, /services/tftpd by default, and requests that use a relative path name refer to files in or below that directory. If the -r option is given, absolute path names are also restricted to homedir. Tftpd runs as none (the least privileged user) and can send only files with general read permission, or write files that are generally writable. Normally tftpd uses the network directory /net, but another can be specified with the -x option. The -d option prints a debugging trace on standard output.

/lib/ndb/local

network configuration file

/services/tftpd

default directory for relative pathnames