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Archive for August, 2009

Setting up a virtual private network (VPN)

Posted by admin On August - 11 - 2009ADD COMMENTS

Local area networks (LAN ) networks are internal to an organization, i.e. the connections between machines belong to the organization. These networks are increasingly connected to the Internet through equipment interconnection. It happens often that companies feel the need to communicate with subsidiaries, customers or even staff geographically remote from the Internet or remote that individuals want to create a secure VLAN.

However, the data transmitted on the Internet are much more vulnerable than when running on an internal network because the path is not defined in advance, which means that the data network infrastructure using public-owned operators . Thus it is not impossible that on the path, the network may be listened to by a user indiscreet or misappropriated. It is not conceivable to transmit in such conditions of sensitive information.

The first solution to address this need for secure communication is to connect remote networks with dedicated lines. However, most companies can not afford to connect two remote LAN through a dedicated line, it is sometimes necessary to use the Internet as a medium of transmission.

A good compromise is to use the Internet as a transmission medium using a protocol of “encapsulation” (tunneling) ie encapsulating data way to transmit encrypted. This is called virtual private network (VPN or RPV noted, an acronym for Virtual Private Network) to denote the artificially created.
This virtual network is said because it connects two “physical” (LAN) by a bond unreliable (Internet), and private computers only because of local side of the VPN can “see” the data.

The VPN system allows for a secure connection at a lower cost, if this is the implementation of terminal equipment. In return it does not ensure a quality of service comparable to a leased line as the physical network is public and therefore not guaranteed.
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Popularity: 4% [?]

10 Ways To Increase Your Twitter Followers

Posted by admin On August - 7 - 20091 COMMENT

  1. Explain to your followers聽what retweeting is and encourage them to retweet your links. Retweeting pushes your @username into foreign social graphs, resulting in clicks back to your profile. Track your retweets using聽retweetist
  2. Fill out your bio. Your latest tweets and @replies don鈥檛 mean much to someone that doesn鈥檛 know you. Your bio is the only place you have to tell people who you are. Also, your bio is displayed on Twitter鈥檚聽Suggested Users page. Leaving it blank or non-descriptive doesn鈥檛 encourage people to add you.
  3. As聽@garyvee says, 鈥渓ink it up.鈥 Put links to your Twitter profile everywhere. Link it on your Digg, LinkedIn, Facebook, blog, email signature, and everywhere else you live online. Also, check out the great聽feedburner-like badges from TwitterCounter for your blog.
  4. Tweet about your passions in life and #hash tag them. Quality content coupled with an easy way to find it never fails. If others enjoy your content, they鈥檒l add you. Learn more about聽#hash tagging here.
  5. Bring your twitter account into the physical world. Every time I give a talk, speak on a panel, shoot a podcast, present slides, or hand out business cards, I figure out a way to broadcast or display my twitter account.
  6. Take pictures. Pictures are heavily retweeted/spread around.聽This one from US Airways Flight 1549 has been viewed 350,000+ times. For mobile pics use iPhone apps such as聽Tweetie or聽Twitterific, both which support on the go uploading.
  7. Start a contest.聽@jasoncalacanis offered a聽free macbook air if he reached the #1 most followed spot. That never happened, but Jason added thousands of followers鈥rilliant.
  8. Follow the聽top twitter users and watch what they tweet. Pay attention to the type of content they sent out and how they address their audiences.
  9. Reply to/get involved in #hash tag memes.聽search.twitter.com lists the hot 鈥榯rending topics. Look for the #hash topics and jump in on the conversation (see #4 for links to #hash instructions).
  10. Track your results.聽TwitterCounter will show you how many new users you鈥檙e adding per day and聽Qwitter will email you when someone unfollows you after a tweet.

Popularity: 7% [?]

Google PageRank Update : June 2009

Posted by admin On August - 6 - 2009ADD COMMENTS

Google PageRank (the visible toolbar PageRank that is) was updated around the web on the 23rd and 24th of June, changing the visible PageRank scores which appear on the toolbars of Google users all over the globe. Lots of publishers tend to use PageRank as a metric for judging the quality of their site, which I do not agree with, but toolbar PageRank is still relevant to many website owners and bloggers, so any update is still a big deal.

The last Google PageRank update I remember was during IM Spring Break in early April, and according to those tracking the Google Toolbar update frequencies, this update comes a bit early.

Barry 鈥淏ig Daddy Hoops鈥 Schwartz reports over at the聽Roundtable聽:

What is interesting about this PageRank update is that it comes less than a month from the last PageRank update. The May 2009 PageRank update took place on May 27th/28th. This one started last night on June 23rd.

As far as I can tell, the homepage PageRank for many of our S&S properties has not changed much, but we have seen a definite increase across the board in Google driven referrals which started last week. Could that increase in search referrals and this latest update be intertwined?

How did your sites make out during the last update? Please feel free to share in the comments below.

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