---
name: "gapd"
section: "8"
platform: "linux"
package: "gap-scscp"
version: "2.4.3+ds-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/gapd"
---

# gapd(8)

GAP Daemon

## NAME

gapd - GAP Daemon

## SYNOPSIS

**gapd** \[*-h HOST\|-a\|-l\|-u*\] \[*-p PORT*\] \[*-t* \[*MODE*\]\] \[*--infolevel*\[*-scscp\|-master*\] *LEVEL*\] \[*--help*\] \[*--version*\]

## DESCRIPTION

GAP Daemon - GAP SCSCP server daemon

## OPTIONS

- **-h** HOST

  Start at host HOST: HOST may be given as machine name with or without domain or as 'localhost' (see option **-l** for that purpose).

- **-a**

  Set server address to the one given by [hostname(1)](/hostname/1.md).

- **-l**

  Start at localhost: reject incoming any connection from the outside.

- **-u**

  Start in \`universal' mode: accept all incoming connections.

- **-p** PORT

  Set server port to PORT, default port set in \`/etc/scscp/gap/config.g'.

- **-t** MODE

  Redirect the server session output according to the following MODEs: MODE=no sink the output to \`/dev/null' (default behaviour); MODE=log redirect the output to \`/var/log/gapd/gapd.log'; MODE=yes redirect the output to a temporary file, which name is displayed (and printed to \`/var/log/gapd/gapd.log' for granted users); the implicit mode is MODE=yes for backward compatibility.

- **--infolevel-scscp** LEVEL

  Set the GAP InfoLevel for SCSCP to LEVEL.

- **--infolevel-master** LEVEL

  Set the GAP InfoLevel for MasterWorker to LEVEL.

- **--infolevel** LEVEL

  Indiscriminately set the GAP InfoLevel\_s to LEVEL.

- **--help**

  Print this help text and exit.

- **--version**

  Output version information and exit.

## AUTHORS

Alexander Konovalov and Steve Linton. The GAP Daemon script **gapd** was slightly improved with backward compatibility and documented hereby by Jerome Benoit on behalf of the Debian Science Team (August 2014).

## FILES

- */etc/scscp/gap/server.g*

  This file is the GAP SCSCP server configuration file on Debian system: it loads all necessary packages, reads all needed code, installs all procedures which will be exposed to the client and finally starts the SCSCP server itself.

- */etc/scscp/gap/config.g*

  This file sets the default parameters needed by the GAP SCSCP package; it is fully commented.

- */etc/scscp/gap/*

  This directory is meant to be the default location on Debian system for all systemwide configuration material needed by the GAP SCSCP server and any GAP SCSCP client.

## COPYRIGHT

Copyright © 2007-2014 by Alexander Konovalov and Steve Linton

GAP SCSCP package is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

## SEE ALSO

[**gap**(1)](/gap/1.md), [**hostname**(1)](/hostname/1.md)

The complete manual for the GAP SCSCP package is available at /usr/share/gap/pkg/scscp/doc or via the GAP online help system.