Satellite can track many remote machines with dynamic IP addresses in situations where public DNS services are inappropriate. It can log and alert an admin immediately when a site comes online or needs attention.
The Satellite archive also includes an RPM spec file. RPM users can build a binary package ready to install by running:
rpm -tb satellite-1.0.2.tar.gzYou will find the binary rpm under /usr/src/rpm/RPMS/i386 or /usr/src/redhat/RPMS/i386.
Reasons for Satellite
Public DNS services are often used to track clients with changing IP addresses, but DNS solutions suffer from several problems:
- Public DNS servers regularly fail due to overloading and system
- No notification
- There is no notification when a system goes online. Instead you must
poll DNS regularly to see when a system comes online.
- Updating can take from several minutes to several hours before the
change is made public. On systems with small idle timeouts it is often
impossible to find the current IP address via DNS.
- No history
- Public DNS services only keep track of the current address and don't record past times or changes in a central location.