Have you ever searched for a VNC viewer app for OSX? I have, and the ones I found were not very good. It turns out there’s a built in VNC viewer in OS X (since version 10.4), used for OS X’s own screen sharing. How cool is that? I found the information about it here.
I have written this introduction to Puppet because I needed to explain how Puppet works. I will try to update it with more information when I have time. I strongly suggest that you read the official Puppet documentation to learn about the language syntax, which is something I don’t explain at all. For people that … [Read more…]
I have updated my PowerDNS Admin tool. The update mainly includes small changes to the UI to support mobile devices better, and includes more informative error messages. PowerDNS_Admin-0.3.5
In Terminal.app execute the following: sudo dscacheutil -flushcache
Upload patches/bundles (a ZIP file named something like ESXi500-201109001.zip) to a datastore visible to the ESXi server that you want to update. Not all bundles requires the server to be in maintenance mode, but some do. I recommend that you migrate any running machines away and enter maintenance mode. Now SSH into you’re ESXi server … [Read more…]
Login to your VMware server through SSH and backup the existing configuration file: cp /etc/vmware/snmp.xml /etc/vmware/snmp.xml.org Edit the snmp configuration file and set enable to true and communities to public or the community name you want to use: vi /etc/vmware/snmp.xml Then restart the SNMP service /sbin/services.sh restart.
If you need to lookup a service tag for a Dell server running Windows, it is possible as shown below; C:\Users\Administrator>wmic csproduct get vendor,name,identifyingnumber IdentifyingNumber Name Vendor 2B7115J PowerEdge R610 Dell Inc.
Having two SSD disks in a FreeNAS (w. ZFS) storage system, I wanted to test log and cache. To avoid using 120GB SSD for the log-device (which only needs 1-2GB) I decided to slice the disks, and use the rest for l2arch cache. First, let’s partition the two disks (ad14 + ad15 in my case): … [Read more…]
To make partitions larger than 2TB, a normal DOS partition table will not work. We have to use a GPT partition table to support +2TB partitions. This is easily done with the parted tool. Below we label the /dev/sdb device as GPT and create one large partition (of type XFS in this case) which spans … [Read more…]
It turns out that language/locale settings affects the output of the check_dig Nagios plugin. On one Nagios server it worked as supposed, but on another it threw; DNS WARNING – 0,004 seconds response time (dig returned an error status) Performance Data: time=0,003554s;;;0,000000 Running the plugin by hand on the server which worked: DNS OK – … [Read more…]