We go on exploring the wondoerful CISCO-ENTITY-FRU-CONTROL mib from Cisco. This week we offer the check_cisco_fru_module plugin, that allows to check modules status on CISCO-ENTITY-FRU-CONTROL-MIB compliant devices .

check_cisco_fru_module plugin allows us to check the status of all modules indicated through a list and compare with states indicated by the warning and critical arguments. check_cisco_fru_module has a mode test to check compatibility of a device too, is fully embedded Perl compatible (ePN) and can be downloaded from our website or through Nagios Exchange.

Some devices supporting this plugin are:

• ME 2400 Series Ethernet Access Switches
• ME 3400 Series Ethernet Access Switches
• Catalyst 2960 Series Switches
• Catalyst 2970 Series Switches
• Catalyst 3560 Series Switches
• Catalyst 3560-E Series Switches
• Catalyst 3750 Series Switches
• Catalyst 3750-E Series Switches
• Catalyst 3750 Series Integrated Wireless LAN Controllers
• Catalyst 6500 Series Switches
• XR 12000 Series Router
• ASA 5500 Series Adaptive Security Appliances
• PIX Firewall
• Nexus 7000 Series Switches
• ONS 15500 Series
• uBR7200 Series Universal Broadband Routers
• MWR 2900 Series Mobile Wireless Routers
• 7300 Series Routers
• 7600 Series Routers
• 10000 Series Routers
• 12000 Series Routers

A week we offer around the world a new plugin, in this case the plugin check_cisco_fru_fan, which allows to check fans status on a CISCO-ENTITY-FRU-CONTROL-MIB complaint device (Cisco MDS 9000 series, ...).

With this plugin, we go into monitoring Cisco network devices, using the MIB CISCO-ENTITY-FRU-CONTROL and in this first step we focus on the fans.

You can use this plugin to test if your system supports CISCO-ENTITY-FRU-CONTROL-MIB and if the compliant device has enabled access SNMP, and utimately if there is a dependency for the proper functioning of this plugin.

check_cisco_fru_fan plugin allows us to check the status of all fans indicated through a list and compare with states indicated by the warning and critical arguments. check_cisco_fru_fan is fully embedded Perl compatible (ePN) and can be downloaded from our website or through Nagios Exchange.

We hope this plugin be of great help and we urge you to be attentive to future plugins that we will publish soon over this MIB.

Today we've released in our donwload site the Nagios plugin check_cpqups_mode. This plugin allows knowing the working mode and status of HP (Hewlett Packard) UPS devices supporting SNMP and CQPUPS-MIB.

Plugin manages the device reported information for stating the working mode as one of the following:

• Online: Working mode in which UPS is getting power supply in its input(s) and protecting the attached devices with the power supplied by its batteries.
• Offline: Working mode in which device is not getting power supply in its input(s) but devices  are protected by batteries. Plugin interprets this state as three possible sub-states: Offline, offline with low battery power and offline with depleted batteries.
• Bypass: Working mode in which UPS is not protecting the attached devices, only transfering power from its inputs to its outputs.

Additionally to the working mode, plugin reports information about battery charge level and autonomy time, in minutes, based on battery level and UPS output consumption. User can set warning and critical thresholds based on both battery levels and autonomy time.

This week we publish the first version change in one of our plugins. Thanks to the community of users who have trusted in our developments for their Nagios system we could get a bug in the plugin to check the memory status on Unix system, the check_unix_mem_usage.

As soon as we have received notice of the error we got down to work and we have corrected this bug and and two more that we have found in way. So, if you seemed functional the plugin, you will now be safer.

Thank you for trusting us. And, you can find the update both our downloads section and in the Nagios Exchange.

Our sincere thanks to José Renato Attab Braga.

Christmas arrives to TComm and we celebrate it adding a new category and a new free plugin for this category. It is a plugin to known the state of the interfaces of a network device that supports RFC 1213 (IF-MIB).

check_iface_status let us checking the operational status of an interfaces list given. If all  interfaces are UP then the plugin state is OK, if not, if almost one of the interfaces has an operational status different to UP state, plugin checks if the interface is in the warning interface list or in the critical interface list to return the plugin state.

An example should make this more clear.

check_iface_status -H 192.0.0.13 -u 1..5,8 -w 1,8 -c 2..5

In this case, plugin checks interfaces 1,2,3,4,5 and 8 of a device with address 192.0.0.13, and possible states are:

- OK, if all checked interfaces has a operational status equal to UP

- WARNING,if any of the interfaces 1 or 8 haven´t a operational status equal to UP

- CRITICAL, if any of the interfaces 2, 3, 4 or 5 haven´t a operational status equal to UP

- UNKNOWN, if it cant´s establish a SNMP connection or another undetected error.

Also, plugin can be used in test mode to know if SNMP access is enabled to your device and if it supports IF-MIB. An example of it could be:

check_iface_status -H 192.0.0.13

- OK if it passed the test. A list with the found interfaces with the id, operatinal status and description is shown too.

- UNKNOWN if test didn´t pass the test.

Plugin is fully embedded Perl compatible (ePN) and can be downloaded from our website or through Nagios Exchange.

We hope this contribution will be useful and hope your suggestions and comments. Happy Christmas!

Esta semana liberamos para uso público un plugin de gran utilidad. check_unix_open_fds permite comprobar el número de descriptores de fichero abiertos por una aplicación.

El objetivo de conocer este valor es evitar un problema vinculado a la apertura de gran número de ficheros que se manifiesta por el error de sistema "Too many open files". Este error aparece usualmente por ataques contra servidores web y provoca un fallo por denegación de servicio (DoS).

El plugin, programado en Perl y compatible con Nagios 3.x, va acompañado de un archivo README con información detallada sobre sus requerimientos. Como siempre el plugin se puede descargar desde nuestra web o a través de Nagios Exchange.

As we announced las week, this week we go on discovering CISCO-ENTITY-FRU-CONTROL from Cisco. Now is the turn to release check_cisco_fru_ps, that allows to check powers status on CISCO-ENTITY-FRU-CONTROL-MIB compliant devices (like Cisco MDS 9000 series).

check_cisco_fru_ps plugin allows us to check the status of all powers indicated through a list and compare with states indicated by the warning and critical arguments. check_cisco_fru_ps has a mode test to check compatibility of a device too, is fully embedded Perl compatible (ePN) and can be downloaded from our website or through Nagios Exchange.

We hope this new plugin will be useful. See you again.

Siguiendo la política de publicación de contenidos para su uso por la comunidad, esta semana hemos liberado un nuevo plugin para Nagios bajo licencia GNU/GPL: check_ups_alarms permite comprobar qué alarmas activas existen en un SAI con soporte al RFC 1628 (UPS-MIB) lo que, usado conjuntamente con el plugin check_ups_mode permite realizar una monitorización del SAI, si no completa, sí relativamente avanzada.

Estamos orgullosos de ver el soporte que estos plugins están teniendo en la comunidad de usuarios de Nagios: en menos de 24 horas el nuevo plugin ha obtenido más de 100 hits  en la web de Nagios Exchange.

Invitamos a todos los usuarios de nuestros contenidos a que expreséis vuestra opinión, reportéis problemas o propongáis mejoras a través de nuestro blog o de la dirección de correo This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Nagios plugin for checking Powerware (Eaton) UPS working mode

After a low activity period (or rather, after highest activity period), we release this week a Nagios plugin very useful for those who use Cisco devices. check_cisco_envmon uses data stored in CISCO-ENVMON MIB for checking the hardware components status and the discrete levels of their functional values.

Plugin allows you checking the operational status of power supplies, fans, voltage and temperature levels managing these values:

• Normal: The component or checked value is healthy or in the operational value range.
• Warning: Component with degraded working state or values out of range but still not reaching critical values.
• Critical: Component working state is critical or the checked value level has raised critical values.
• Shutdown: Component status or value level is so degraded that the device will shutdown for auto protection.
• Not Present: Checked component is not present.
• Not Functioning: Checked component reports abnormal values, thus not functioning state is considered.

Relative to functional values, plugin returns voltage levels and temperature values as performance data.

We would like to thank Marcia Gross her help lighting our way in order to select what plugin to release this week (Marcia, we hope it has most useful for you).