ZABBIX is an enterprise-class distributed monitoring solution designed to monitor and track performance and availability of network servers, devices, and other IT resources. It supports distributed and Web-based monitoring, auto-discovery, real-time monitoring, SLA assurance, trending, and more.
WebAbility is an advanced Web development platform that contains WebFlow, a content management system (CMS), a security advanced system (SAS), a powerful workflow engine, and Web site wrappers. It supports multiple database connections, multiple languages, multiple presentation templates, page, script, and library versioning, XML and Web Services integration, and advanced security management. It uses plugins to extend the software for tasks such as e-commerce, portals, intranets, and editorial systems.
di is a disk information utility that displays everything that df does and more. It features the ability to display your disk usage in whatever format you prefer. It also checks the user and group quotas, so that the user sees the space available for their use, not the system wide disk space. It is designed to be highly portable across many platforms and is great for heterogenous networks.