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NTP users are strongly urged to take immediate action to ensure that their NTP daemons are not susceptible to being used in distributed denial-of-service (DDoS) attacks. Please also take this opportunity to defeat denial-of-service attacks by implementing Ingress and Egress filtering through BCP38.

ntp-4.2.8p15 was released on 23 June 2020. It addresses 1 medium-severity security issue in ntpd, and provides 13 non-security bugfixes over 4.2.8p13.

Please see the NTP Security Notice for vulnerability and mitigation details.

Are you using Autokey in production? If so, please contact Harlan - he's got some questions for you.


Dakar compatibility module for use with plugins that need some of the infrastructure that has been established since TWiki-4.0 (Dakar). Most notably, this is the security sandbox that eliminates the most common attack vectors to TWiki seen in the past.

Detailed Documentation

To use it in your plugin code proceed as follows.

Allocate a sandbox object

  my $sandbox;

  unless (defined &TWiki::Sandbox::new) {
    eval "use TWiki::Contrib::DakarContrib;";
    $sandbox = new TWiki::Sandbox();
  } else {
    $sandbox = $TWiki::sharedSandbox;

Call an external process

  my ($result, $errorCode) = $sandbox->sysCommand($cmdTemplate>, %params);

Normalize a filename

  $fileName = TWiki::Sandbox::normalizeFilename($fileName);


  • One line description:
    • Set SHORTDESCRIPTION = Dakar compatibility module for Plugins that need some of the TWiki-4.0 infrastructure on Cairo codebase
  • Name of the perl package
    • Set STUB = TWiki::Contrib::DakarContrib

Installation Instructions

  • Download the ZIP file
  • Unzip it in your twiki installation directory. Content:
    File:Sorted ascending Description:
    data/TWiki/DakarContrib.txt contrib topic
    lib/TWiki/Contrib/DakarContrib.pm perl module

Contrib Info

Author: TWiki:Main/MichaelDaum
Copyright ©: 2006, Michael Daum
License: GPL (GNU General Public License)
Version: v0.1 (26 Jan 2006)
Dependencies: None
Change History:  
26 Jan 2006: Initial version
09 Dec 2005: moved in sandbox code from dakar's codebase
Home: TWiki:Plugins/DakarContrib
Feedback: TWiki:Plugins/DakarContribDev
Appraisal: TWiki:Plugins/DakarContribAppraisal

-- TWiki:Main/MichaelDaum - 26 Jan 2006

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