Netmask Quick Reference Chart. There are plenty of these netmask references out there, but I prefer my own: hence this Tech Tip.
We've never seen anybody use a network larger than a /4 (256M hosts), so we've truncated the table at that point. All devices on a local network have a unique IP address, but each address is inherently divided into two parts, a shared network part, and a unique host part, and this information is used by the TCP/IP stack for routing. When sending traffic to a machine with a different network part, it must be sent through a router for final delivery. The dividing line between the network and host parts is determined by the subnet mask, and it's often seen in 255.255.255.0 notation.
It looks like an IP address, and it uses a "1" bit to select, or "mask" the network part. In this case, the netmask of 255.255.255.248 represents 29 bits of network and 3 bits of host (totalling 32 bits, of course), and this give 8 possible IP addresses in this range. Home Page - www.SecurityXploded.com. SOPA Emergency. Network Tools by YouGetSignal.com. Real Ip's. SOPA Emergency IP list: So if these ass-fucks in DC decide to ruin the internet, here’s how to access your favorite sites in the event of a DNS takedown tumblr.com 174.121.194.34 wikipedia.org 208.80.152.201 # News bbc.co.uk 212.58.241.131 aljazeera.com 198.78.201.252 # Social media reddit.com 72.247.244.88 imgur.com 173.231.140.219 google.com 74.125.157.99 youtube.com 74.125.65.91 yahoo.com 98.137.149.56 hotmail.com 65.55.72.135 bing.com 65.55.175.254 digg.com 64.191.203.30 theonion.com 97.107.137.164 hush.com 65.39.178.43 gamespot.com 216.239.113.172 ign.com 69.10.25.46 cracked.com 98.124.248.77 sidereel.com 144.198.29.112 github.com 207.97.227.239 # Torrent sites thepiratebay.org 194.71.107.15 mininova.com 80.94.76.5 btjunkie.com 93.158.65.211 demonoid.com 62.149.24.66 demonoid.me 62.149.24.67 # Social networking facebook.com 69.171.224.11 twitter.com 199.59.149.230 tumblr.com 174.121.194.34 livejournal.com 209.200.154.225 dreamwidth.org 69.174.244.50.
I'm Feeling Lucky on FireFox adress bar. Firefox 7 is just released and today, I upgraded to Firefox 8 beta.
Unfortunately, my beloved add-on LuckyBar is not compatible with Firefox 8 yet. So I said good bye to LuckyBar add-on and invented my own way to get Google's "I'm Feeling Lucky" to Firefox. Google's "I'm Feeling Lucky" search query pattern is so simple. You only have to add btnI=1 param to the request URL. For an example, if you needed to search Google for "Apple", search URL is But if you need to fire an "I'm Feeling Lucky" search, request URL should be That being said, if we changed Firefox's default addressbar-search-engine to the pattern above, it will replicate an I'm feeling lucky search right from the address bar. To do so, open a new tab in Firefox and then type about:config in the address bar, and hit Enter key. Now, when you type something such as "Mozilla", "Ayesh", "Youtube" or something else, you will be taken to the first Google search result automatically, from Google's "I'm Feeling Lucky" search!