The Internet Weather Report is an indication of Internet health from the perspective of the connection at Matrix.net. It shows the percentage of packet loss to major backbone and internet providers as well as the root nameservers. This can be useful in pinpointing a major routing failure on a backbone or showing the relative connectivity of other sites in relation to Clear Ink.

The Matrix Information and Directory Services (MIDS) examines the composition, content, and users of the Internet and other networks in the Matrix of all computers worldwide that exchange electronic mail. They organize information on many such topics textually, graphically, and geographically, and publish it in peridocals, reports, and packages.

Big Brother is a free Web-based Unix Network Monitoring and Notification System, written by Sean MacGuire. Source provided. It runs on (at least) FreeBSD, Solaris and SunOS, Linux and RedHat Linux, SCO, HPUX, NetBSD, Ultrix, OSF, Irix, and UnixWare. It can send pager alerts on any condition you wish, and seems quite easy to configure. Monitors connectivity, http servers, disk space usage, uptime, essential processes, and system messages.

Solstice Site Manager and Solstice Domain Manager are two SNMP based commercial products from SunSoft that run under Solaris on SPARC stations or SPARC Servers and also runs on Solaris x86 versions 2.4 and later. They uses SNMP agents to monitor almost any type of networked equipment (and services on that equipment) and graphically displays machine status as well as having an option for sound and external command execution when an event occurs.

Tivoli is a commercial product available for AT&T SVR4, DG-UX, HP-UX, IBM AIX, Motorola SVR4, Solaris, SunOS, and Windows NT. Tivoli installs its own set of agents on the client machines and uses shell and exec services to relay information back to the Tivoli master. Tivoli uses one port for all of its communication and and speaks in its own ``language.'' The information about an event is transmitted back to the master Tivoli database where notification can be done via mail or a pager.

Tkined is a free Tk based monitoring tool based on the TCL package scotty. The scotty package is freely available as a source code release. It compiles on all major UNIX platforms. You need a C compiler, Tcl/Tk and the usual utilities (e.g. make, sed) to compile and install scotty. Scotty comes with a GNU autoconf configure script to simplify the compilation and installation process. The tkined source distribution contains applications to discover IP networks, to support the network layout process, to troubleshoot IP networks using SNMP in combination with other standard tools (e.g. traceroute) and to monitor network status using SNMP or selected SUN RPCs. There is also a mailing list for discussion about tkined and scotty.