DANE Monitoring with posttls-finger in XYMON

Abstract

Monitoring DANE enabled mail servers is important. Testing with posttls-finger and unbound in XYMON is easy. I wrote a little script that does all the magic.

Here is a small experimental XYMON client script for checking maildomains validation via DANE.

The script requires Viktor Dukhovnies tool posttls-finger to test …

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Open Source System Management Conference 2014

Abstract

Es lohnt sich immer, im Frühling nach Südtirol zu fahren. Ein Grund mehr ist die Open Source System Management Conference, die Würth-Phönix traditionell zu dieser Jahreszeit ausrichtet. Der Hersteller von neteye schafft es immer, interessante Redner einzuladen. Dieses Mal lag der Schwerpunkt des Nachmittagsprogramms auf der Technik, was die …

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Monitoring pacemaker with OpenNMS

Abstract

In the article I will describe how the monitor a pacemaker cluster resource manager of a Linux cluster with the OpenNMS monitoring system. The OpenNMS server requests and analyses data from the SNMP agent of pacemaker.

Monitoring pacemaker with OpenNMS

In the article I will describe how the monitor …

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Monitoring pacemaker with Zabbix

Abstract

In the article I will describe how the monitor a pacemaker cluster resource manager of a Linux cluster with the Zabbix monitoring system. The Zabbix server requests and analyses data from the pacemaker SNMP agent.

Monitoring pacemaker with Zabbix

In the article I will describe how the monitor a …

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Monitoren und Alarmierung von Brute-Force-Attacken auf SMTP SASL mit XYMON

Abstract

Wer Mailserver betreibt, über die sensible Daten ausgetauscht werden, möchte bei Brute-Force-Attacken alarmiert werden.

Wer Mailserver betreibt, über die sensible Daten ausgetauscht werden, möchte bei Brute Force Attacken alarmiert werden. Hier eine kurze Beschreibung, wie man das mit XYMON einrichtet.

Postfix loggt über rsyslog. Auf einem Ubuntu-Server findet sich …

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Monitoring bonnie++ Disk I/O

Abstract

Have you ever asked yourself how the disk performance measurement tool bonnie++ is working in the background? I monitored one cycle of bonnie++ and got nice graphs that I want to discuss in this blog.

Have you ever asked yourself what bonnie++, the disk performance measurement tool, does in …

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Monitoring QoS on Cisco routers

Abstract

A customer has several WAN lines to remote offices and has QoS implemented on the routers. Of course I wanted to monitor what really happens on the line. Which packets are classified? And how? How many packets are queued and how many bytes are dropped. And the customer was …

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