r3 - 2006-03-02 - 14:50:10 - SteveKosteckeYou are here: NTP >  TWiki Web > SessionPlugin
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.
This Plugin allows session information to be retained whilst a browser is running. It does this by storing a small session cookie in the browser. This contains an identification string that TWiki users to extract session information on the server.


  • The cookie is not persistant
  • The session information is stored in files under data/.sessions/
  • Old session files should be deleted by a cron job
  • Identification string using for session is:
    • time (second resolution) + random number
  • If url parameter stickskin is present, its value sets the session value for SKIN i.e. you then stick on this skin. Get back to defalt skin with stickskin=.

  • Set SHORTDESCRIPTION = Holds session information on server, session identified from sessionId stored in non-persistant cookie
  • Set DEBUG = 0
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