The Internet Assigned Numbers Authority (IANA) has reserved the following three blocks of the IP address space for private internets: 10.0.0.0 - 10.255.255.255 (10/8 prefix) 172.16.0.0 - 172.31.255.255 (172.16/12 prefix) 192.168.0.0 - 192.168.255.255 (192.168/16 prefix) ...

To filter routes 41.0.0.0 and 42.0.0.0 from bgp route declarations outgoing from RTR_SYDNEY : RTR_SYDNEY(config)#ip prefix-list FILTER1 deny 41.0.0.0/8 RTR_SYDNEY(config)#ip prefix-list FILTER1 deny 42.0.0.0/8 RTR_SYDNEY(config)#ip prefix-list FILTER1 permit 0.0.0.0/0 le 32 RTR_SYDNEY(config)#router bgp 777 RTR_SYDNEY(config-router)#neighbor 172.12.123.1 prefix-list FILTER1 out RTR_SYD...

I thought this was an interesting analogy for the IPV6 Address Space: From: http://www.cedmagazine.com/ipv6-a-catalyst-for-service-growth.aspx Putting the contrast into perspective, if one IPv4 address was one picometer (one trillionth of a meter) long, the entire IPv4 address space would be approximately 4.3 millimeters long–the length of an average-sized ant. If an IPv6 address were one pico...

Article: "Google Chrome: The Official Start of the Cloud Era" Author Lawrence Walsh says: "Google Chrome is being dismissed by competitors and analysts, but it may just be the official beginning of the cloud computing era by freeing users from big, heavy PCs and operating systems." I commented on his article as follows: I think the ho-hum reaction you are referring to comes from the paid c...

A featured story on drupal.org: Case Study of OpenTheMagazine.com In the story, we get a fantastic closeup view of the drupal modules used and the reasoning behind their use. For a young Drupal developer/user, it is a very useful article. The "Heroes" of the site were considered to be Views 2, CCK, & for search, Apache SOLR. The list below of other drupal modules used by the site is excerpt...

This is a 60x50 image - see the website - this is very clever: http://www.typorganism.com/asciiomatic/ ...

I took a look at some of these, but I really wanted to be able to do both incremental and differential backups, which eliminates most of these options. The GFI product does both, looks clean and crisp, seems to work fine, is running as we speak :) Just so you know, the offering from Microsoft is nowhere near as good as it was under XP - only Full Disk Images, only to other network drives if...

As I evaluate Windows 7 (which looks pretty good overall), I missed terribly the "Quick Launch" feature that I rely upon heavily in XP... So I found this very well done lesson on how to get the Quick Launch back in V7... http://www.howtogeek.com/howto/windows-7/add-the-quick-launch-bar-to-the-taskbar-in-windows-7/ The Key thing you need to know is: Right-Click on the Taskbar, select "Too...

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Note: This article is published HERE: www.sitepoint.com/article/configuring-web-logs-apache (although it is not loading right now) Configure Web Logs in Apache Author's Note: While most of this piece discusses configuration options for any operating system Apache supports, some of the content will be Unix/Linux (*nix) specific, which now includes Macintosh OS X and its underlying Unix kerne...