---
name: "openvas-nvt-sync"
section: "8"
platform: "linux"
package: "openvas-scanner"
version: "5.0.7-3"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/openvas-nvt-sync"
---

# openvas-nvt-sync(8)

updates the OpenVAS security checks from OpenVAS NVT Feed

## NAME

openvas-nvt-sync - updates the OpenVAS security checks from OpenVAS NVT Feed

## SYNOPSIS

**openvas-nvt-sync**

## DESCRIPTION

The  **OpenVAS Security Scanner** performs several security checks, each of them being coded as an external plugin coded in NASL. As new security holes are published every day, new plugins appear on the OpenVAS site (www.openvas.org)\
 The script  **openvas-nvt-sync** will fetch all the newest security checks for you and install them at the proper location. Once this is done you will need to either restart openvas-scanner(8) or send a SIGHUP to its main process so that it loads the new checks and uses them for new security scans.

**openvas-nvt-sync** uses [rsync(1)](/rsync/1.md) and  [md5sum(1)](/md5sum/1.md) to do its job. In order to download the new plugins the machine where the script runs needs to have access to rsync.openvas.org using the rsync protocol (TCP/UDP port 873).

If you are behind a web proxy you can configure rsync to use it through the use of the RSYNC\_PROXY environment variable. For more information see [rsync(1)](/rsync/1.md).

## SECURITY NOTES

**openvas-nvt-sync** uses [rsync(1)](/rsync/1.md) to retrieve the archive of the new plugins. The scripts provided by the OpenVAS project might  **not be signed.** Consequently, if somewhere where to poison your DNS server and force this script to retrieve NASL plugins on another site he would force your OpenVAS server to execute NASL scripts when running security tests. Even if this might not do much harm (see the NASL reference guide for more information on that subject) you should be very careful when doing this.

## SEE ALSO

For more information see: **[rsync(1)](/rsync/1.md),** **[openvassd(8)](/openvassd/8.md),**\
 There is more information available at **/usr/share/doc/openvas-plugins** on Debian systems.

You can find additional information about the OpenVAS project in http://www.openvas.org

## AUTHOR

This manual page was written by Javier Fernández-Sanguino Peña \<jfs@debian.org\> for the Debian GNU/Linux system (but may be used on other systems).

The  **openvas-nvt-sync** script was written by various authors, mainly from Greenbone Networks GmbH.