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tftpd(8) [osf1 man page]

tftpd(8)						      System Manager's Manual							  tftpd(8)

NAME
tftpd - The DARPA Trivial File Transfer Protocol (TFTP) server SYNOPSIS
/usr/sbin/tftpd [-b] [-d] [-r pathname] [-t interval] [directory ...] FLAGS
Instructs tftpd to not respond to broadcast requests. Specifies that the name of the file and other debug information is sent to syslogd. Specifies the relative pathname a user can specify to transfer a file that has no path associated with it. For example, -r /tmp/tftp causes /tmp/tftp to be prefixed to a file that has no path and the file is copied to and from the directory /tmp/tftp. Only one directory path can be specified with this option. Specifies the amount of time, in seconds, that tftpd waits before it recognizing a connection timeout. The default interval is 25 seconds. DESCRIPTION
The tftpd daemon is a server that supports the DARPA (Defense Advanced Research Projects Agency) Trivial File Transfer Protocol. The TFTP server operates at the port indicated in the tftp service description; see services(4). The server is normally started by inetd(8). The use of tftp does not require an account or password on the remote system. Due to the lack of authentication information, tftpd will allow only publicly readable files to be accessed. Files can be written only if they already exist and are publicly writable. Note that this extends the concept of ``public'' to include all users on all hosts that can be reached through the network; this may not be appropri- ate on all systems, and its implication should be considered before enabling tftp service. The server should have the user ID with the lowest possible privilege. Access to files may be restricted by invoking tftpd with a list of directories and including pathnames as server program arguments in /etc/inetd.conf. In this case, access is restricted to files whose names are prefixed by the one of the given directories. The tftpd daemon validates the files that it has to transfer against the /etc/tftptab file. If you are transferring files that are not pub- licly readable or not in the directories listed on the command line, you must make certain that those files are listed in the /etc/tftptab file. RESTRICTION
The maximum number of directories allowed in the directory list are 62. The maximum number of files allowed in /etc/tftptab file is 256. FILES
Specifies the command path RELATED INFORMATION
Commands: tftp(1) Daemons: inetd(8) delim off tftpd(8)

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in.tftpd(1M)                                                                                                                          in.tftpd(1M)

NAME
in.tftpd, tftpd - Internet Trivial File Transfer Protocol server SYNOPSIS
in.tftpd [-s] [homedir] tftpd is a server that supports the Internet Trivial File Transfer Protocol (TFTP). Before responding to a request, the server attempts to change its current directory to homedir; the default directory is /tftpboot. The use of tftp does not require an account or password on the remote system. Due to the lack of authentication information, in.tftpd will allow only publicly readable files to be accessed. Files may be written only if they already exist and are publicly writable. Note that this extends the concept of "public" to include all users on all hosts that can be reached through the network. This may not be appropriate on all systems, and its implications should be considered before enabling this service. in.tftpd runs with the user ID and group ID set to [GU]ID_NOBODY under the assumption that no files exist with that owner or group. How- ever, nothing checks this assumption or enforces this restriction. -d Debug. When specified it sets the SO_DEBUG socket option. -s Secure. When specified, the directory change to homedir must succeed. The daemon also changes its root directory to homedir. The in.tftpd server is IPv6-enabled. See ip6(7P). See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWtftp | +-----------------------------+-----------------------------+ svcs(1), tftp(1), inetadm(1M), inetd(1M), svcadm(1M), netconfig(4), attributes(5), smf(5), ip6(7P) Malkin, G. and Harkin, A. RFC 2347, TFTP Option Extension. The Internet Society. May 1998 Malkin, G. and Harkin, A. RFC 2348, TFTP Blocksize Option. The Internet Society. May 1998 Malkin, G. and Harkin, A. RFC 2349, TFTP Timeout Interval and Transfer Size Options. The Internet Society. May 1998 Sollins, K.R. RFC 1350, The TFTP Protocol (Revision 2). Network Working Group. July 1992. The tftpd server only acknowledges the transfer size option that is sent with a read request when the octet transfer mode is specified. The in.tftpd.1m service is managed by the service management facility, smf(5), under the service identifier: svc:/network/tftp/udp6:default Administrative actions on this service, such as enabling, disabling, or requesting restart, can be performed using svcadm(1M). Responsibil- ity for initiating and restarting this service is delegated to inetd(1M). Use inetadm(1M) to make configuration changes and to view config- uration information for this service. The service's status can be queried using the svcs(1) command. Unlike most smf(5) services, a manifest for the tftp service is not included in the system. To create one and enable this service, the administrator should: 1. Edit /etc/inet/inetd.conf and uncomment the tftp entry. 2. Run /usr/sbin/inetconv. After you run inetconv, the svc:/network/tftp/udp6:default service is created and enabled. 8 Mar 2005 in.tftpd(1M)
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