212 lines
3.1 KiB
Plaintext
212 lines
3.1 KiB
Plaintext
.TH RCPU 1
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.SH NAME
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rcpu, rimport, rexport, rconnect \- connection to CPU server
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.SH SYNOPSIS
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.B rcpu
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[
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.B -u
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.I user
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] [
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.B -k
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.I keypattern
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] [
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.B -P
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.I patternfile
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] [
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.B -p
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] [
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.B -h
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.I host
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] [
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.B -c
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.I cmd arg ...
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]
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.PP
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.B rimport
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[
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.B -abcCnq
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] [
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.B -s
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.I name
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] [
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.B -u
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.I user
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] [
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.B -k
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.I keypattern
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] [
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.B -p
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]
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.I host
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.I tree
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[
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.I mountpoint
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]
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.PP
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.B rexport
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[
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.B -abcCnq
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] [
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.B -s
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.I remotename
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] [
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.B -m
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.I remotemtpt
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] [
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.B -u
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.I user
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] [
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.B -k
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.I keypattern
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] [
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.B -P
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.I patternfile
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] [
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.B -p
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]
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.I tree
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.I host
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[
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.I remotecmd arg ...
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]
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.PP
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.B rconnect
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[
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.B -u
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.I user
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] [
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.B -k
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.I keypattern
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] [
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.B -p
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]
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.I host
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.I remotescript
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.I localcommand arg ...
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.SH DESCRIPTION
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.I Rcpu
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runs commands from
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.IR rc (1)
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on a cpu server with the local namespace exported to
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the remote side under
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.BR /mnt/term .
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The current directory, interrupt notes, standard file descriptors 0,1,2
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and
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.B /dev/cons
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are passed to the remote side. The command to run can be passed
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with
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.B -c
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.IR "cmd arg ..." ,
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otherwise an interactive shell is started. The user's profile
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is run before the command with
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.B $service
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set to
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.B cpu
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to allow further customization of the environment (see
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.IR rc (1)
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for more information).
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The cpu server can be specified with
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.B -h
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.IR host ,
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otherwise it defaults to the environment variable
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.B $cpu
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or is looked up from
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.IR ndb (6).
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.PP
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.I Rimport
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mounts a remote directory
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.I tree
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from a cpu server
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.I host
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into the local namespace at
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.IR mountpoint .
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When
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.I mountpoint
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is omitted, it is set the same as
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.IR tree .
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When the
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.B -s
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.I name
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option is present, the service is also posted to
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.BI /srv/ name
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allowing it to be mounted in other namespaces.
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.PP
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.I Rexport
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is the reverse of
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.IR rimport ,
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exporting a local directory
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.I tree
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to the server
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.I host
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and optionally executing
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.I remotecmd arg
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on the server side after posting the service to
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.BI /srv/ remotename
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or mounting it at
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.IR remotemtpt .
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.PP
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.I Rconnect
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is a helper program handling client side connection setup for
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the commands listed above. The rcpu protocol starts by setting up a mutual
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authenticated and encrypted TLS connection using
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.IR tlssrv (8)
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followed by the client sending an
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.IR rc (1)
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.I remotescript
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file to the server which gets executed under the authenticated user
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with file descriptors 0,1,2 cross connected to file descriptors 0,1
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of the client side running
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.I localcommand
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over the encrypted connection.
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.PP
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The common options are:
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.PD
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.TP
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.B -a -b -c -C -n -q
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Specifies the
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.I mount
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options (see
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.IR bind (1))
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for
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.I rimport
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and
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.IR rexport .
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.TP
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.B -P \fIpatternfile
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Restricts the set of exported files (see
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.IR exportfs (4))
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for
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.I rcpu
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and
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.IR rexport .
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.TP
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.B -u \fIuser
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Remote user id to authenticate as.
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.TP
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.B -k \fIkeypattern
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Use
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.I keypattern
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to select a key to authenticate to the remote side (see
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.IR auth (2)).
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.TP
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.B -p
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Protect the connection against connection resets by establishing
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.IR aan (8)
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tunnel.
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.SH FILES
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.B /rc/bin/service/tcp17019
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.SH SOURCE
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.B /rc/bin/rcpu
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.br
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.B /rc/bin/rimport
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.br
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.B /rc/bin/rexport
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.br
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.B /rc/bin/rconnect
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.SH "SEE ALSO"
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.IR rc (1) ,
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.IR con (1) ,
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.IR exportfs (4) ,
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.IR tlssrv (8) ,
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.IR aan (8)
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