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 direc-
tory is /tftpboot.
The use of tftp does not require an account or password on
the remote system. Due to the lack of authentication infor-
mation, 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 con-
cept 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.
-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 attri-
butes:
____________________________________________________________
| 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). Net-
work 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). Responsibility for initiating and restarting
this service is delegated to inetd(1M). Use inetadm(1M) to
make configuration changes and to view configuration infor-
mation 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.
Created: Friday March 2, 2007 7:04 PM