IPSERV(8)IPSERV(8)
NAME
telnetd, rlogind, rexexec, ftpd, socksd, hproxy – Internet remote access daemons
SYNOPSIS
ip/telnetd
[-adnptN]
[-u
user]
ip/rlogind
ip/rexexec
ip/ftpd
[-aAde]
[-n
namepace-file]
ip/socksd
[
-x
inside
] [
-o
outside
]
ip/hproxy
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
/rc/bin/service
(see
listen(8)).
Telnetd
allows login from a remote client.
There are three types of login:
normal
Normal users log in by encrypting and returning a
challenge printed by
telnetd.
The user can use either the
netkey
program
(see
passwd(1))
or a SecureNet handheld authenticator to encrypt the challenge.
/lib/namespace
defines the namespace.
noworld
Users in group
noworld
in
/adm/users
authenticate with a password in the clear.
/lib/namespace.noworld
defines the namespace.
anonymous
User
none
requires no authentication.
/lib/namespace
defines the namespace.
Telnetd’s
options are:
a
allow anonymous login by
none
d
print debugging to standard error
p
don’t originate any telnet control codes
n
turn on local character echoing and imply the
p
option
t
trusted, that is, don’t authenticate
u
use
user
as the local account name
N
permit connections by ‘noworld’ users only.
Rlogind
logs in using the BSD remote login protocol.
Rlogind
execs
telnetd
-nu
after completing its initial handshake.
Rexexec
executes a command locally for a remote client. It uses the
standard Plan 9 authentication (see
authsrv(6)).
Ftpd
runs the Internet file transfer protocol. Users may transfer
files in either direction between the local and
remote machines.
As for
telnetd,
there are three types of login:
normal
Normal users authenticate
via the same challenge/response as for
telnetd.
/usr/username/lib/namespace.ftp
or, if that file does not exist,
/lib/namespace
defines the namespace.
noworld
Users in group
noworld
in
/adm/users
login using a password in the clear.
/lib/namespace.noworld
defines the namespace.
anonymous
Users
anonymous
and
none
require no authentication.
The argument to the
–n
option (default
/lib/namespace.ftp)
defines the namespace.
Anonymous users may only store files in the subtree
below
/incoming.
Ftpd’s
options are:
a
allow anonymous access
A
allow
only
anonymous access
d
write debugging output to standard error
e
treat any user as anonymous
n
the namespace for anonymous users (default
/lib/namespace.ftp)
To preserve intended protections in shared file trees,
any directory containing a file
.httplogin
is locked by
ftpd;
see
httpd(8).
Socksd
is a SOCKS4 and SOCKS5
proxy server allowing non Plan9 machines to access the
outside network.
The net to use for outgoing calls can be specified
with the
-o
outside
and the internal network is specified with
-x
inside
(for UDP relay).
If not specified,
inside
and
outside
will default to
/net.
Hproxy
is a simple HTTP proxy server.
FILES
/lib/namepace
/usr/username/lib/namespace.ftp
/lib/namespace.world
/lib/namespace.ftp
SOURCE
/sys/src/cmd/ip/telnetd.c
/sys/src/cmd/ip/rlogind.c
/sys/src/cmd/ip/rexexec.c
/sys/src/cmd/ip/ftpd.c
/sys/src/cmd/ip/socksd.c
/sys/src/cmd/ip/hproxy.c
SEE ALSO
ftpfs(4),
pop3(8)
HISTORY
Hproxy
first appeared in 9front (July, 2012).
Socksd
first appeared in 9front (March, 2012).