Category Archives: Operating System

javax.net.ssl.SSLProtocolException: handshake alert: unrecognized_name – Solved

javax.net.ssl.SSLProtocolException: handshake alert: unrecognized_name – Solved

The exception javax.net.ssl.SSLProtocolException: handshake alert:  unrecognized_name javax.net.ssl.SSLProtocolException: handshake alert:  unrecognized_name is actually a bug in the Java v1.7. However we wont get this exception in Java v1.6. To solve this issue, you can either roll back the Java version to 1.6 or add the following code to your start of the program. System.setProperty(“jsse.enableSNIExtension”, “false”);

Use TELNET in Shell Script or Non-interactive Mode

Use TELNET in Shell Script or Non-interactive Mode

      TELNET  is used to connect to remote machines to send data or execute commands either using interactive or non-interactive. Interactive mode is quite common where two users connect each others machine to communicate information. However we can automate the TELNET connection using the following command. Note that the sleep command is essential… Read More »

Apple’s iOS vs Google’s Android Operating System

Apple's iOS vs Google's Android Operating System

Apple’s iOS vs Google’s Android Operating System

Apple's iOS vs Google's Android Operating System

      There are a very few mobile OS of which iOS and Android are hot in the current market trend. There is a huge battle between these two operating system to become the best among the mobile OS. Let us compare iOS and Android based on the factors like UI/UX, performance, applications etc.… Read More »

Ubuntu apt-get update problems”Something wicked happened resolving ‘extras.ubuntu.com:http [-5 – No address associated with hostname]”

Ubuntu apt-get update problems"Something wicked happened resolving 'extras.ubuntu.com:http [-5 - No address associated with hostname]"

Ubuntu apt-get update problems”Something wicked happened resolving ‘extras.ubuntu.com:http [-5 – No address associated with hostname]”

Ubuntu apt-get update problems"Something wicked happened resolving 'extras.ubuntu.com:http [-5 - No address associated with hostname]"

      This error “[-5 – No address associated with hostname]” is very common while installing or updating packages in Ubnutu Linux which is due DNS. To solve this issue change the “Download from” option in Update Manger. Select the option which has IP address its name. Follow the below steps to correct the… Read More »

MYSQL on Linux(Ubuntu) keeps crashing – Solution is to create Swap Space

MYSQL on Linux(Ubuntu) keeps crashing – Solution is to create Swap Space

MYSQL on Linux(Ubuntu) keeps crashing – Solution is to create Swap Space

MYSQL on Linux(Ubuntu) keeps crashing – Solution is to create Swap Space

          There are many internet users who face this problem where the MYSQL on their server getting crashed frequently. I personally faced this problem in my WordPress blog in my VPS. This problem occurs due to lack of memory(RAM) space. i.e. when your RAM usage hits the maximum. This problem can… Read More »