Your EC2 box only contain .pem auth to enable password authentication follow the steps By default your ec2 box come with .pem authentication, once you create your user and password for that user you can’t able to login with that credentials because EC2 by default disables that functionality. Edit ssh config file by below command $ sudo vim /etc/ssh/sshd_config Search for PasswordAuthentication setting and setit to yes PasswordAuthentication yes Restart ssh server $sudo /etc/init.d/ssh reload
Error :- down_retry_delay not reached for localhost:11211 (0.001 seconds left) down_retry_delay not reached for localhost:11211 (0.001 seconds left) down_retry_delay not reached for localhost:11211 (0.001 seconds left) down_retry_delay not reached for localhost:11211 (0.001 seconds left) [2012-03-20 15:08:28] ERROR NoMethodError: You have a nil object when you didn't expect it! You might have expected an instance of Array. The error occurred while evaluating nil.each /usr/local/lib/ruby/gems/1.9.1/gems/rack-1.3.6/lib/rack/handler/webrick.rb:71:in `service' /usr/local/lib/ruby/1.9.1/webrick/httpserver.rb:111:in `service' /usr/local/lib/ruby/1.9.1/webrick/httpserver.rb:70:in `run' /usr/local/lib/ruby/1.9.1/webrick/server.rb:183:in `block in start_thread' cache: [GET /assets/kanga_custom/search_merchant.js?body=1] miss, ...
Computer scientists are the experts who push the boundaries of computer technology to find out how it can be improved and to help us better understand and make use of its potential. They may specialize in any of a wide range of subjects, including programming languages, hardware design, artificial intelligence, computer-human interaction and many others. Instructions 1 Take courses in high school such as computers, mathematics, science and English if you're interested in a career in computer science. 2 Take part in a placement or internship if you have the chance. You'll get to work alongside a computer scientist and see what their work environment is like. You will also get to note it as experience on your resume. 3 Obtain a bachelor's degree in computer science. Bachelor's degree programs tend to take four years to complete. Depending on the position you apply for, a degree in a related subject, such as computer engineer...
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