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+.TH SRV 8 obsolete
+.SH NAME
+srv \- start services
+.SH SYNOPSIS
+.B lib/srv
+[
+.BI -n " nsfile"
+]
+[
+.B -v
+]
+[
+.B -s
+]
+.SH DESCRIPTION
+.I Srv
+starts listeners for local network services.
+It is now considered obsolete: see
+.IR svc (8),
+which replaces it using
+.IR sh (1)
+and
+.IR listen (1).
+.PP
+If the file
+.B /services/namespace
+exists,
+.I srv
+builds a new name space using
+.IR newns (2).
+The
+.B -n
+option may be used to supply a different file.
+.I Srv
+then starts a listener for each service configured in
+.BR /services/server/config .
+.PP
+The configuration file is a text file.
+Empty lines and lines beginning
+.B #
+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 service
+(typically
+.B tcp
+or
+.BR udp ),
+and the path name of the service command (module).
+Any further arguments are passed as arguments to that command.
+.PP
+Normally the server type field contains the letter
+.BR S ,
+and
+.I 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
+.BR M ,
+however,
+.I 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
+.B bootp
+and
+.BR tftpd .
+The diagnostics from all servers will appear on the standard
+error of
+.I srv
+itself.
+.PP
+For example, the default configuration file includes the following lines:
+.PP
+.EX
+.ps -2
+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
+.ps +2
+.EE
+.PP
+The arguments to
+.IR rstyxd
+and
+.IR stxyd
+(see
+.IR rstyxd (8)),
+and
+.IR dbsrv (7)
+should list the security algorithms supported by the server's
+.IR ssl (3).
+.SH FILES
+.B /services/namespace
+.br
+.B /services/server/config
+.SH SOURCE
+.B /appl/lib/srv.b
+.SH SEE ALSO
+.IR listen (1),
+.IR services (6),
+.IR cs (8),
+.IR dbsrv (7),
+.IR rstyxd (8),
+.IR svc (8)
+.SH BUGS
+Each service should arguably start in a minimal name space.