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Tomcat - set JSESSIONID length / set session id length

2 points
Created by:
Huzaifa-Ball
415

In this article, we would like to show how to set the length of value for JSESSIONID cookie (session-id) in Tomcat Server. The session-id length configuration is located inside context.xml.

Simple steps:

  1. go to Tomcat configuration directory,
    e.g. in Windows it can be:
    C:\Program Files\Apache Software Foundation\apache-tomcat-8.0.46\conf
    e.g. in Debian Linux it can be:
    /var/lib/tomcat8/conf/context.xml
  2. open context.xml,
  3. add sessionIdLength attribute to Manager element,
    e.g. 50 bytes per session id:
    <Manager sessionIdLength="50" />

Example context.xml file:

Example in which place of context.xml file, set length of JSESSIONID (session id) for Tomcat server.
Example in which place of context.xml file, set length of JSESSIONID (session-id) for Tomcat server.

See also

  1. Spring Boot 2.x - change session cookie id value length (JSESSIONID length)

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