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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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 …
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.
In the article I will describe how the monitor …
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.
In the article I will describe how the monitor a …
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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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 LOG for abnormal events is daily business as well as tracking normal events - they give a good insight how a system performs. But what makes an event normal and when does it turn into something abnormal?
Monitoring LOG for abnormal events is daily business as well as tracking …
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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 …
Abstract
Monitoring a mail gateway is a good idea. You want to know what it is working all the day and you want to be the first one to know if it is not working any more. Mail is still one of the most sensitive applations in an enterprise. In …
Abstract
Recently I created a brute force alarming mechanism to detect login attempts into Dovecot. Since I use xymon for everyday work my solution is based on it.
Recently I created a brute force alarming mechanism to detect login attempts into Dovecot. Since I use xymon for everyday work my …
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