Edwin Amsler talked about (and demonstrated) ZFS. ZFS is a file system originally developed at Sun Microsystems. It has numerous features and has a native port to Solaris, OpenSolaris, and FreeBSD; Non-official ports have been made to Linux and Mac OSX.
Edwin focused on the basic usage of the file system and the snapshotting features that come built in.
May’s RTFM featured the parallel(1) command, presented by Gilbert Detillieux. (GNU parallel is not yet a standard utility on most UNIX/Linux distributions, but is freely available and portable.)
Our May meeting started with the usual round-table discussion, moderated by Brad Vokey.
Adam Thompson talked about (and demonstrated) pfSense, a wholly UNIX-based network firewall and network services appliance that can run on anything from embedded devices up to the latest super-servers. pfSense is based on FreeBSD, and thus uses the pf(4) packet filtering framework from OpenBSD to do most of the heavy lifting. Supporting multi-WAN, HTTP acceleration, DNS, DHCP, authentication, and wireless NIC’s among other features, it’s an ideal system for someone who wants a free, open-source firewall that’s still incredibly easy to manage.
Adam has made his presentation slides, in ODP and PDF format, available online.
The catchphrase of the last year, and two years to come. The basics.
Everyone by now has heard of “The Cloud.” Most people, even in the IT industry, are baffled as to what the cloud actually is. This no-frills, down-to-earth presentation by Rob Keizer was on what the Cloud is, what its uses are, and the basics of setting up a private one.
Rob has made his presentation slides, in PPT and PDF format, available online. (Rob warns that they are incomplete and buggy, because of format conversions and such.)
Our March meeting started with the usual round-table discussion, moderated by Doug Shewfelt.
One of the most important new developments in the Linux 2.6 kernel was the Logical Volume Manager, version 2 (or LVM 2). Logical volume management is a widely-used technique for deploying logical rather than physical storage. With LVM, “logical” partitions can span across physical hard drives and can be resized (unlike traditional ext3 “raw” partitions). Kevin McGregor summarized the basic principles behind the LVM and provided examples of basic operations which can be performed with it.
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