Monitoring Cisco Nexus 7000 switches with Icinga/Nagios

Cisco uses an different MIB to make information over SNMP for there NEXUS hardware available.tcomm.es has provided some plugins to monitor such switches espacially for the FRU-hardware. The original website is not available at the moment, so I’ve made a copy at github. All configuration examples are tested with a Nexus7000 C7010 and software version… Read More »

Configure Mozilla Firefox and Thunderbird company-wide

Mozilla Firefox and Thunderbird are wonderful tools to browse through the www and sending E-Mails. There are some ways to configure this both programms permantly(firefox.cfg|thunderbird.cfg) or temporarily (user.js). One way to deploy the setting company-wide is to use mozptch. But I use another way. With mozptch you have always change your GPO-Template to reflect new… Read More »

Postfix and TLS (outdated)

After securing your mail-relaying between postfix as smarthost and postfix on a road-warrior, the next step to do is securing the transport way. E-Mail is clear text! Every (machine) can read it! Think about a open WLAN. The hotspot-provider can read your Mail! I’ve tested this setup with Debian Etch and Lenny (Postfix 2.3.8-2+etch1 and… Read More »

Apache2 with modsecurity as MS Exchange OWA proxy

The intention for this short howto was to use the power of modsecurity to secure a Apache2 running as proxy for an MS Exchange OWA on wild wild web. The system described below is based on a debian lenny machine. Let’s start with editing the sources.list to get the latest version of modsecurity module. Simply… Read More »

Moving a XEN-Instance from etch to lenny

With the upgrade from Debian etch to lenny i’ve set up an new machine to serv my XEN-Instances. First install the Dom0 on the new hardware and create a logical volume (here my-lvm-vg on/dev/sdb) for further expansion: pvcreate /dev/sdb vgcreate my-lvm-vg /dev/sdb Then bring up your network by editing the /etc/xen/xend-config.sxp similar to the old… Read More »