in.tftpd man page on SunOS

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in.tftpd(1M)		System Administration Commands		  in.tftpd(1M)

NAME
       in.tftpd, tftpd - Internet Trivial File Transfer Protocol server

SYNOPSIS
       in.tftpd [-d] [-T rexmtval] [-s] [homedir]

DESCRIPTION
       tftpd is a server that supports the Internet Trivial File Transfer Pro‐
       tocol (TFTP).

       Before responding to a request, the server attempts to change its  cur‐
       rent 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. However,
       nothing checks this assumption or enforces this restriction.

OPTIONS
       -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.

       -T rexmtval    Specifies	 the  value  of	 the retransmission timeout in
		      seconds. This also affects the maximum  session  timeout
		      in  that the latter is set to five times the retransmis‐
		      sion timeout value.

USAGE
       The in.tftpd server is IPv6-enabled. See ip6(7P).

       in.tftpd supports transfers of greater than 32 MB, per RFC 2348.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       ┌─────────────────────────────┬─────────────────────────────┐
       │      ATTRIBUTE TYPE	     │	    ATTRIBUTE VALUE	   │
       ├─────────────────────────────┼─────────────────────────────┤
       │Availability		     │SUNWtftp			   │
       └─────────────────────────────┴─────────────────────────────┘

SEE ALSO
       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.

NOTES
       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).	Responsibility
       for  initiating	and restarting this service is delegated to inetd(1M).
       Use inetadm(1M) to make configuration changes and to view configuration
       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.

SunOS 5.10			  5 Nov 2008			  in.tftpd(1M)
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