... 22portalsadvantages of, 17–18creating with Liferay, 18defined, 1–3Google example, 7–14 portal pages. See portal pages (security example) Portal Properties tab (Admin portlet), 333–334 portal- ext.properties ... Portalversion5.1.0,aredestinedtoreplaceEXT,Liferaysexistingextensionmodel.Theyreeasiertouseandtheycausefewermaintenanceandupgradeissues.Usinghookplugins,youcanhook into these entities: ã Liferayseventingsystem ã Javamodellisteners ã JavaServerPages(JSPs) ã Portalproperties ã LanguagepropertiesTo augment your portal with support for hook plugins, ... calendars (portals), 18viewing events, 212–219CAS settings screen (authentication), 89Cascading Style Sheets (CSS), 271categories (discussion forums)actions on, 103 109 adding new, 101 103 permissions...