RSTYXD(8) RSTYXD(8)
NAME
rstyxd - Styx-based remote execution and file service
SYNOPSIS
auxi/rstyxd alg ...
DESCRIPTION
Rstyxd provides a remote-execution service. Having autho-
rised the client and optionally established ssl, as
described above, it reads a single line from its standard
input. The line contains a decimal value that is the count
of the number of bytes that follow, which rstyxd reads as a
utf(6)-encoded string. The string contains a command, which
is parsed into arguments, following the quoting conventions
of sh(1). The first argument is the command name. Rstyxd
prepares a modified name space in which to run the command.
It mounts the connection (standard input) on /n/client,
binds /n/client/dev onto /dev, and opens the new /dev/cons
(ie, the remote client's /dev/cons) on file descriptors 0, 1
and 2. Finally, it executes the command.
Rstyxd is normally started by svc(8) in response to incoming
network calls. It expects the standard input to be con-
nected to the client; unusually, it is both read and writ-
ten. It first authenticates the incoming call using
keyring-auth(2) via security-auth(2). On successful authori-
sation, the server sets its user identity to that of the
caller, and the client can request that a digest and/or
encryption algorithm be applied using ssl(3) to protect the
data exchanged with the server. Each alg names a digest or
encryption algorithm that the server will allow the client
to use, in any form accepted by ssl; the special name none
is usually listed, to allow the client to choose not to use
ssl.
FILES
/n/client mount point used by rstyxd
/usr/user/keyring/default server's authentication data when
svc(8) run as given user
SOURCE
/appl/cmd/auxi/rstyxd.b
SEE ALSO
keyring-auth(2), security-auth(2), getauthinfo(8)
Page 1 Plan 9 (printed 4/20/24)