I have tried many different monitoring platforms some of which have been open-source and many of which have been proprietary, and all of which have seemed to miss the point when it comes to being extensible and at the same time be reasonably easy to manage. I recently discovered Zabbix which looks to be the perfect blend of easy to manage while also including all the advanced capabilities that make a monitoring package flexible enough to be useful.
A quick overview of some of the more interesting capabilities includes:
- Distributed Monitoring (the ability to have remote nodes gather information and push that information to your primary management server)
- Complex escalation options
- Agent based monitoring with support for various Linux/Unix variants, Windows, OS X, and others
- Customizable web interface to allow individuals the ability to create an interface that is most useful and relevant
- A variety of alerting methods including e-mail, Jabber, SMS, and others
- A web based regular expression editor to facilitate advanced alerting based on more complex criteria than simple “up/down” type methods
- Database storage of all data and published API’s for integration with 3rd party tools
I came across this software yesterday and must admit I was quite impressed at this open source network discovery software. The basic idea is to use existing network discovery protocols such as CDP, FDP, LLDP as well as SNMP to “crawl” a network and record the various network relationships encountered. It also appears to have a very clean and user friendly interface which is something many network management tools seem to lack.
NeDi is web based and runs on a standard LAMP (Linux, Apache, MySQL, and PHP) infrastructure.
Nearly all current releases of Cisco Unified Communications applications now supporting being installed in a virtualized environment. The relevant documentation and best practices are published to the following Cisco Wiki site:
Cisco DocWiki Link
Here’s an excellent link describing the maximum loop length for FXS cabling from an FXS port to an end device. There is also good information on the calculations used to derive these values.
The newly released, and now shipping, Cisco Cius tablet is a business-ready Android based tablet tailored for business applications. Some people have wondered why Cisco would choose to enter the tablet market when so many others are already shipping tablets running Android. Simply put Cisco is making the tablet enterprise friendly and interoperable with existing technology investments. The hardware and software have been designed to seamlessly offer high quality audio, video, and application access when roaming on a WiFi or 3G connectivity. This means that users can expect audio and video conferencing to operate as well when using their Cius as when they are using a hard-wired video endpoint. Applications access can be controlled through integrated management software.
Cisco is also shipping a docking station that looks somewhat like a laptop docking station with the addition of a handset. The docking station includes USB, network, video output, and audio output for integration with desktop peripherals. When adding a handset to the Cius the device is transformed in to a desktop phone. Due to the peripheral connectivity the Cius can act as a fully featured virtual desktop client.
More information can be found here