Version Control. SSH tricks. Why SSH? As recently as a 2001, it was not uncommon to log in to a remote Unix system using telnet. Telnet is just above netcat in protocol sophistication, which means that passwords were sent in the clear. As wifi proliferated, telnet went from security nuissance to security disaster. As an undergrad, I remember running ethereal (now wireshark) in the school commons area, snagging about a dozen root passwords in an hour. SSH, which encrypts and authenticates connections, had been in development since 1995, but it seemed to become adopted nearly universally and almost overnight around 2002. It is worth configuring SSH properly: per-user configuration is in ~/.ssh/config; system-wide client configuration is in /etc/ssh/ssh_config. Key-based, passwordless authentication Key-based passwordless authentication makes it less cumbersome for other programs and scripts to piggyback atop SSH, since you won't have to re-enter your password each time.
To set this up, first log in to the client machine. Johnathan Chung - Google+ - Over 200 Free Online Educational Resources (v.2.0) … Over 200 Free Online Educational Resources (v.2.3) Warning: Very long post. Please open in a new browser tab. Here is decades' worth of knowledge freely available online for those who love to learn. Links that fit under multiple categories are listed only once. What are your favorite sites to learn from? (View the original post for any future updates: I. Khan A Academic Earth - Online courses from the world's top sc TED - Technology, Entertainment, & MIT Open Cour Stanford Engineering Ever Open Yale C About U. - Collection of free online courses from About. Wikiv YouTube The Open University - Study at the V. VI. Url?sa=t&rct=j&q=+site:forum.rizon.net+cannot+connect+to+rizon&source=web&cd=10&ved=0CGkQFjAJ&url=http%3A%2F%2Fforum.rizon.net%2Fshowthread.
Haskell. JSP. Fourier analysis. Game programming. Linux. Introduction to Databases - Stanford University. Windows Phone 7. PHP. C++ Javascript. Computer Graphics. Archives. Android. Computer Networking. Elliott Wave Principle. Method of market analysis The Elliott wave principle posits that collective trader psychology, a form of crowd psychology, moves between optimism and pessimism in repeating sequences of intensity and duration. These mood swings create patterns in the price movements of markets at every degree of trend or time scale. According to Elliott's theory, markets move through two phases: a motive (impulsive) phase, where prices move in the direction of the main trend, and a corrective phase, where prices move against the trend, as the illustration shows.
Impulses are always subdivided into a set of five lower-degree waves, alternating again between motive and corrective character, so that waves 1, 3, and 5 are impulses, and waves 2 and 4 are smaller retraces of waves 1 and 3 respectively. Corrective waves subdivide into three smaller-degree waves starting with a five-wave counter-trend impulse, a retrace, and another impulse. Each degree of a pattern in a financial market has a name. [edit] R.
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