1.0 Create a sakai.properties file
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Tool collections for the home page can be configured for each site type. However, if the 
SAK-15504 - Upgraded site: editing My workspace leads to duplicate Home CLOSED and SAK-16747 - tools are not auto-added into Home tool page CLOSED for more details.
wsetup.home.toolids.* property is not set, the Worksite setup tool will default to the following set of tools for the home page: sakai.iframe.site, sakai.summary.calendar, sakai.synoptic.announcement, sakai.synoptic.chat, sakai.synoptic.messagecenter. Synoptic tools will be added or dropped from home page depending on whether their linked tool exists in the site or not. See wsetup.home.toolids.count=5 wsetup.home.toolids.1=sakai.privacy wsetup.home.toolids.2=sakai.iframe wsetup.home.toolids.3=sakai.synoptic.announcement wsetup.home.toolids.4=sakai.synoptic.chat wsetup.home.toolids.5=sakai.synoptic.messagecenter
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A new group helper is enabled by default (see 
SAK-13413 - Group creation enhancement CLOSED for more details). Site maintainers can now create groups based on sections and roles. To switch back to the old 2.5 style of group helper (ad-hoc only), one needs to add following setting in
sakai.properties:wsetup.group.helper.name = sakai-site-manage-group-helper
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Sakai includes a property called inactiveInterval@org.sakaiproject.tool.api.SessionManager, which dictates the length of inactive time before a users session times out and allows for the enabling of a session timeout warning. Session status is now checked by the Sakai portal. If the remaining session time is less than the warning time (say 10 minutes). When a session expires, the any page requests are redirected to the URL indicated by the 
SAK-13987 - Session Timeout Popup Utilizing Polling data from entity broker CLOSED SAK-8152 - Sakai should warn a user before the user's session times out and data is inadvertently lost CLOSED for more details.
loggedOutUrl sakai property. See To enable the session timeout warning, set the following properties in your local sakai.properties with a time interval of your choosing:
timeoutDialogEnabled=true timeoutDialogWarningSeconds=600
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Depending on usage, Sakai may create many large temporary files in the system temporary file storage location (e.g. /tmp). It is a good practice to routinely remove temporary files older than a day, especially if you have a lot of users or have heavy usage of mail sending with attachments. Note that you should not simply remove all temp files on a schedule as some of them may be in active use (also be careful about removing temp files which are used by other processes).
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2.0 Configure home page tool set per site
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3.0 Work site setup group helper
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4.0 Session timeout warning
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