About Cookies ​

1. Cookie ​

A cookie is a text file stored by a web server on a computer or mobile device, and the content of a cookie can be retrieved or read only by the server that created the cookie. Cookies are unique to the browser or mobile application you are using. The text in a cookie often consists of identifiers, site names, and some numbers and characters.

The openEuler community sometimes stores cookies on computers or mobile devices. We use cookies to improve user experience, including:

  1. Strictly necessary cookies: When you use the website, cookies ensure that your visit to the website is as smooth and secure as possible.

    • a) Account cookie：_Y_G_
      Source: openEuler website
      Expiration: session
      Purpose: Maintain user login sessions.
    • b) Account cookie: _U_T_
      Source: openEuler website
      Expiration: 10 hours
      Purpose: Prevent cross-site request forgery (CSRF) attacks.
    • c) Web Application Firewall cookies: HWWAFSESID and HWWAFSESTIME
      Source: Huawei Cloud WAF
      Expiration: session
      Purpose: Prevent malicious attacks
    • d) Forum cookie：_forum_session, _t
      Source: forum website
      Expiration: 7 days
      Purpose: Maintains user sessions
    • e) etherpad Cookie: express_sid
      Source: etherpad website
      Expiration: 1 day
      Purpose: Maintains user sessions.
    • f) etherpad Cookie: token
      Source: etherpad website
      Expiration: 60 days
      Purpose: Record the author's random token, which will be generated by the client.
    • g) Compatibility certification cookie：sessionId
      Source: compatibility certification website
      Expiration: 30 minutes
      Purpose: Maintains user sessions.
    • h) Compatibility certification cookie：XSRF_TOKEN
      Source: compatibility certification website
      Expiration: 30 minutes
      Purpose: Protects against cross-site request forgery attacks.
    • i) EulerMaker cookie: Authorization
      Source: compatibility certification website
      Expiration: 4 hours
      Purpose: Protects against cross-site request forgery attacks.

  2. Your preferences and settings. A website can use cookies to save settings, such as the languages, website theme, and other browsing preferences of computers or mobile devices.

    • a) agreed-cookiepolicy
      Source: openEuler website
      Expiration: 6 months
      Purpose: Record your choice of non-necessary cookies.
    • b) openEuler-theme-appearance
      Source: openEuler website
      Expiration: 6 months
      Purpose: Record your preference for the website theme.
    • c) etherpad Cookie: prefs
      Source: etherpad website
      Expiration: 1 year, 1 month, 1 week
      Purpose: Record the client's preference settings, which are used to set font series, colors, and other content.

  3. Statistical analysis cookies. We collect information about your use of our website. These cookies help us understand how the services are performing and being used.

The openEuler community does not use cookies for any purposes other than those described in this statement. You can manage or delete cookies based on your preferences. For details, visit AboutCookies.org. You can clear all cookies saved on your computer. Most browsers are set to block cookies. But if you do so, you need to change the user settings yourself every time you visit our website. For details about how to change the browser settings, please visit the following links: Internet Explorer, Google Chrome, Mozilla Firefox, Safari and Opera.

If you clear cookies, you need to change user settings each time you visit the openEuler community website. Note that some services in the openEuler community may require cookies. Disabling cookies may affect all or some functions of these services.

You can click Cookie Settings to withdraw your consent to non-necessary cookies.

2. Similar Technologies ​

In addition to cookies, we may use other technologies to automatically collect information. Browser web storage: We may use browser web storage (including HTML5), also known as local storage, for similar purposes to those of cookies. Browser web storage can store more data than cookies. Your web browser may provide the function to clear the data stored therein.

We use the following local storage technologies:

  1. LocalStorage
    • a) Statistical analysis: oa-openEuler-client，oa-openEuler-events，oa-openEuler-session
      Source: openEuler website
      Purpose: Record your application ID, events, and sessions
    • b) Search History: search-history
      Source: openEuler website
      Purpose: Record your internal search history
    • c) Beginner's guide steps: tour_guide
      Source: openEuler website
      Purpose: Record the progress steps of beginner guidance on your website

3. Do Not Track ​

Many browsers provide the "Do Not Track" feature, which sends the "Do Not Track" request to websites. So far, major Internet standardization organizations have not established policies to regulate how websites should respond to such requests. The openEuler community does not change how data is collected and used as described in this statement based on the "Do Not Track" setting you have selected or other opt-out settings or features that your browser may provide. However, the openEuler community reserves the right to change the data processing mode without notifying you.