Check (Not Directly Accessible) SSL Certificate Expiry on Microsoft Windows Server

NagiosXI and other monitoring tools have ways to determine if your SSL certificates on say a web server are nearing expiry, but what if you have software that uses a certificate but that certificate is not directly poll-able over the standard HTTPS checks. The script which can be found here, is a passive check, so […]

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Monitoring PSU Status on Hardware Kemp Load Master (or ECS Connection Manager)

We recently deployed some hardware Kemp ECS Connection Managers (which are designed to front the Dell ECS storage platform), however we were a bit dismayed to see there was no way to monitor the hardware status via GUI, SNMP or the Rest API. We had this issue raised after we had a PSU failure occur […]

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Monitor Rx and Tx Errors on Extreme Networks Switches via SNMP Query (using NagiosXI)

It is helpful to monitor the RxErrors and TxErrors on ports on Extreme Networks switches to get a heads up on any issues before they begin to impact service. The Extreme Networks MIB can be downloaded from the Extreme Networks support portal to assist you in finding the relevant SNMP OIDs, the below is an […]

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NagiosXI check_ldap Error – Could not bind to the LDAP server

When attempting to use the check_ldap plugin, I found that unsecured LDAP lookups on port 389/TCP worked fine, but attempting a secure lookup on 636 or using TLS failed. Attempting a check_ldap check normally worked fine (i.e. to port 389), but attempting an LDAPS or LDAP TLS check failed with the following error: The check_ldap […]

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Monitor Status of Dell PowerVault TL4000 Quick and Dirty with Nagios

You can monitor the Dell PowerVault TL4000 Tape Library using the Nagios check_snmp plugin. After setting the TL4000 to accept SNMP connections on v2 SNMP you can run the following command below. This queries for the status of the library as a rollup. # ./check_snmp -H <IP Address> -C community -o .1.3.6.1.4.1.674.10893.2.102.2.1.0 -r3 SNMP OK […]

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