Sysops or system operators are users trusted to be responsible enough to have access to the following tools: * They have all privileges from the rollback, forum operator and chat moderator groups and also have the ability to: * Delete pages, page histories, files etc. * Rename files. * Lock (protect) a page so it cannot be edited or renamed by users without admin rights. * Block an IP address or user name from editing. * Revert bad edits more easily using a "rollback" link. * Edit the MediaWiki namespace to make changes to the interface.