SRV(8) (obsolete) SRV(8)
NAME
srv - start services
SYNOPSIS
lib/srv [ -n nsfile ] [ -v ] [ -s ]
DESCRIPTION
Srv starts listeners for local network services. It is now
considered obsolete: see svc(8), which replaces it using
sh(1) and listen(1).
If the file /services/namespace exists, srv builds a new
name space using newns(2). The -n option may be used to sup-
ply a different file. Srv then starts a listener for each
service configured in /services/server/config.
The configuration file is a text file. Empty lines and
lines beginning # are comments, and ignored. Each non-
comment line has at least four fields: the server type, the
service name, the network name on which to announce the ser-
vice (typically tcp or udp), and the path name of the ser-
vice command (module). Any further arguments are passed as
arguments to that command.
Normally the server type field contains the letter S, and
srv announces the service on the network itself, listens for
incoming calls, and on each call invokes the command with
any arguments given. The standard input and output of the
command are set to refer to the network connection. If the
server type field contains the letter M, however, srv starts
the given command once during its own initialisation, and
leaves the server to announce and manage its incoming calls.
This is typically used to start self-contained services such
as bootp and tftpd. The diagnostics from all servers will
appear on the standard error of srv itself.
For example, the default configuration file includes the
following lines:
S infsigner tcp /dis/auth/signer.dis
S infcsigner tcp /dis/auth/countersigner.dis
S inflogin tcp /dis/auth/logind.dis
S styx tcp /dis/lib/styxd.dis none clear sha md5 rc4 sha/rc4 md5/rc4
S rstyx tcp /dis/lib/rstyxd.dis none clear sha md5 rc4 sha/rc4 md5/rc4
S infdb tcp /dis/lib/dbsrv.dis none clear sha md5 rc4 sha/rc4 md5/rc4
S virgil udp /dis/lib/virgild.dis
The arguments to rstyxd and stxyd (see rstyxd(8)), and
dbsrv(7) should list the security algorithms supported by
the server's ssl(3).
Page 1 Plan 9 (printed 12/21/24)
SRV(8) (obsolete) SRV(8)
FILES
/services/namespace
/services/server/config
SOURCE
/appl/lib/srv.b
SEE ALSO
listen(1), services(6), cs(8), dbsrv(7), rstyxd(8), svc(8)
BUGS
Each service should arguably start in a minimal name space.
Page 2 Plan 9 (printed 12/21/24)