Subversion Repositories planix.SVN

.TH IPSERV 8

.SH NAME

telnetd, rlogind, rexexec, ftpd \- Internet remote access daemons

.SH SYNOPSIS

.B ip/telnetd

.RB [ -adnptN ]

.RB [ -u

.IR user ]

.PP

.B ip/rlogind

.PP

.B ip/rexexec

.PP

.B ip/ftpd

.RB [ -aAde ]

.RB [ -n

.IR namepace-file ]

.PP

.SH DESCRIPTION

These programs support remote access across the Internet.  All expect the

network connection to be standard input, output, and error.  They are normally

started from scripts in

.B /rc/bin/service

(see

.IR listen (8)).

.PP

.I Telnetd

allows login from a remote client.

There are three types of login:

.TF anonymo

.TP

.I normal

Normal users log in by encrypting and returning a

challenge printed by

.IR telnetd .

The user can use either the

.IR netkey

program

(see

.IR passwd (1))

or a  SecureNet handheld authenticator to encrypt the challenge.

.B /lib/namespace

defines the namespace.

.TP

.I noworld

Users in group

.B noworld

in

.BR /adm/users

authenticate with a password in the clear.

.B /lib/namespace.noworld

defines the namespace.

.TP

.I anonymous

User

.B none

requires no authentication.

.B /lib/namespace

defines the namespace.

.PD

.PP

.IR Telnetd 's

options are:

.TP 4

.B a

allow anonymous login by

.B none

.TP

.B d

print debugging to standard error

.TP

.B p

don't originate any telnet control codes

.TP

.B n

turn on local character echoing and imply the

.B p

option

.TP

.B t

trusted, that is, don't authenticate

.TP

.B u

use

.I user

as the local account name

.TP

.B N

permit connections by `noworld' users only.

.PD

.PP

.I Rlogind

logs in using the BSD remote login protocol.

.I Rlogind

execs

.I telnetd

.B -nu

after completing its initial handshake.

.PP

.I Rexexec

executes a command locally for a remote client.  It uses the

standard Plan 9 authentication (see

.IR authsrv (6)).

.PP

.I Ftpd

runs the Internet file transfer protocol.  Users may transfer

files in either direction between the local and

remote machines.

As for

.IR telnetd ,

there are three types of login:

.TF anonymo

.TP

.I normal

Normal users authenticate

via the same challenge/response as for

.IR telnetd .

.BI /usr/ username /lib/namespace.ftp

or, if that file does not exist,

.B /lib/namespace

defines the namespace.

.TP

.I noworld

Users in group

.B noworld

in

.B /adm/users

login using a password in the clear.

.B /lib/namespace.noworld

defines the namespace.

.TP

.I anonymous

Users

.B anonymous

and

.B none

require no authentication.

The argument to the

.B \-n

option (default

.IR /lib/namespace.ftp )

defines the namespace.

Anonymous users may only store files in the subtree

below

.BR /incoming .

.PD

.PP

.IR Ftpd 's

options are:

.TP 4

.B a

allow anonymous access

.TP

.B A

allow

.I only

anonymous access

.TP

.B d

write debugging output to standard error

.TP

.B e

treat any user as anonymous

.TP

.B n

the namespace for anonymous users (default

.BR /lib/namespace.ftp )

.PP

To preserve intended protections in shared file trees,

any directory containing a file

.I .httplogin

is locked by

.IR ftpd;

see

.IR httpd (8).

.PP

.SH FILES

.B /lib/namepace

.br

.BI /usr/ username /lib/namespace.ftp

.br

.B /lib/namespace.world

.br

.B /lib/namespace.ftp

.SH SOURCE

.B /sys/src/cmd/ip/telnetd.c

.br

.B /sys/src/cmd/ip/rlogind.c

.br

.B /sys/src/cmd/ip/rexexec.c

.br

.B /sys/src/cmd/ip/ftpd.c

.SH "SEE ALSO"

.IR ftpfs (4),

.IR pop3 (8)