ref: e7068420d08536df39488f40373ba9b99b0da2b1
dir: /sys/man/1/rcpu/
.TH RCPU 1 .SH NAME rcpu, rimport, rexport, rconnect \- connection to CPU server .SH SYNOPSIS .B rcpu [ .B -u .I user ] [ .B -k .I keypattern ] [ .B -P .I patternfile ] [ .B -p ] [ .B -h .I host ] [ .B -c .I cmd arg ... ] .PP .B rimport [ .B -abcCnq ] [ .B -s .I name ] [ .B -u .I user ] [ .B -k .I keypattern ] [ .B -p ] .I host .I tree [ .I mountpoint ] .PP .B rexport [ .B -abcCnq ] [ .B -s .I remotename ] [ .B -m .I remotemtpt ] [ .B -u .I user ] [ .B -k .I keypattern ] [ .B -P .I patternfile ] [ .B -p ] .I tree .I host [ .I remotecmd arg ... ] .PP .B rconnect [ .B -u .I user ] [ .B -k .I keypattern ] [ .B -p ] .I host .I remotescript .I localcommand arg ... .SH DESCRIPTION .I Rcpu runs commands from .IR rc (1) on a cpu server with the local namespace exported to the remote side under .BR /mnt/term . The current directory, interrupt notes, standard file descriptors 0,1,2 and .B /dev/cons are passed to the remote side. The command to run can be passed with .B -c .IR "cmd arg ..." , otherwise an interactive shell is started. The user's profile is run before the command with .B $service set to .B cpu to allow further customization of the environment (see .IR rc (1) for more information). The cpu server can be specified with .B -h .IR host , otherwise it defaults to the environment variable .B $cpu or is looked up from .IR ndb (6). .PP .I Rimport mounts a remote directory .I tree from a cpu server .I host into the local namespace at .IR mountpoint . When .I mountpoint is omitted, it is set the same as .IR tree . When the .B -s .I name option is present, the service is also posted to .BI /srv/ name allowing it to be mounted in other namespaces. .PP .I Rexport is the reverse of .IR rimport , exporting a local directory .I tree to the server .I host and optionally executing .I remotecmd arg on the server side after posting the service to .BI /srv/ remotename or mounting it at .IR remotemtpt . .PP .I Rconnect is a helper program handling client side connection setup for the commands listed above. The rcpu protocol starts by setting up a mutual authenticated and encrypted TLS connection using .IR tlssrv (8) followed by the client sending an .IR rc (1) .I remotescript file to the server which gets executed under the authenticated user with file descriptors 0,1,2 cross connected to file descriptors 0,1 of the client side running .I localcommand over the encrypted connection. .PP The common options are: .PD .TP .B -a -b -c -C -n -q Specifies the .I mount options (see .IR bind (1)) for .I rimport and .IR rexport . .TP .B -P \fIpatternfile Restricts the set of exported files (see .IR exportfs (4)) for .I rcpu and .IR rexport . .TP .B -u \fIuser Remote user id to authenticate as. .TP .B -k \fIkeypattern Use .I keypattern to select a key to authenticate to the remote side (see .IR auth (2)). .TP .B -p Protect the connection against connection resets by establishing .IR aan (8) tunnel. .SH FILES .B /rc/bin/service/tcp17019 .SH SOURCE .B /rc/bin/rcpu .br .B /rc/bin/rimport .br .B /rc/bin/rexport .br .B /rc/bin/rconnect .SH "SEE ALSO" .IR rc (1) , .IR con (1) , .IR exportfs (4) , .IR tlssrv (8) , .IR aan (8)