SEARCH KEYWORD -- Data center


  Generating CSR using Java

A CSR(Certificate Signing Request) is a kind of request generated by an application and is to be sent to a Certificate Authority to create a signed certificate which can be distributed. It usually contains certificate information such as subject name, public key info and signature info. In Java, keytool can be used to generate a certificate request with option -certreq.  But sometimes if an application wants to create a CSR programmatically, keytool will not do a favor, instead you should u...

   JAVA,SECURITY,CSR,CERTIFICATE REQUEST     2016-05-25 04:49:17

  LinkedIn ceases operations in China

Microsoft's social platform LinkedIn announced on Wednesday, August 9th, that it would cease its operations in China, ending its nearly decade-long presence in the Chinese market. This move signifies the departure of a major Western social media platform from China. Currently, when accessing LinkedIn's domain within China, users are redirected to a page that provides services for corporate clients. The mobile app for "LinkedIn Workplace" displays a message stating, "Unable to load data." ...

   CHINA,LINKEDIN,MICROSOFT     2023-08-09 03:28:56

  Some measures for improving Linux server security

The hackers often exploit server weakness to gain access control to some servers. With a scanner, aimlessly looking undefended host, backdoor, control, and sold to people in need. Some basic security measures can be taken on Linux servers to avoid being attacked by hackers. Disable root remote login As the default administrative account, root is the account which is most likely to be attacked.Disabling ssh remote login is necessary. Method: Edit / etc / ssh / sshd_config PermitRootLogin no At t...

   Linux server,Server security     2012-08-21 05:08:50

  Jackie the smart quadcopter to launch at Robotics Week

Flying security camera synced to smartphone kicks off Kickstarter campaign Entrepreneurs and robotics graduate students Jackie Wu and Ritwik Ummalaneni, in Northwestern University’s Master’s in Robotics program, are launching their new product, Jackie, during the National Robotics Week. The flying security camera quadcopter syncs straight to a smartphone, and is the next evolution in home security platforms that consumers have been waiting for. Jackie’s intuitive and easy co...

   Startup,Quadcopter,Security camera,Jackie Wu     2015-04-05 20:56:11

  Email Modular Design – An Overview

Email is one of the most prevalent forms of business communication. Businesses all over the world send hundreds of email every day to communicate with their customers in a personalized, intimate way, providing useful information, special offers, records of business transactions, official news or messages and much more. Right from one or two-man projects to large Fortune 500 companies, every business entity uses emails on a daily basis to stay in touch with their base of customers. As a company g...

   email     2014-08-14 08:22:03

  Server monitoring shell scripts

There are many open source server monitoring software such as cacti and nagios. Besides these, can we write our own shell scripts to monitor them? The shell scripts written by ourselves can fulfill our special requirements better and have a more detailed coverage. Below are some commonly used shell scripts used by Evangelist, an Oracle DBA. 1. Check network gateway traffic #!/bin/bash #network #Mike.Xu while : ; do time='date +%m"-"%d" "%k":"%M' day='date +%m"-"%d' rx_before='...

   Server monitor,CPU,memory,shell     2013-08-30 21:56:14

  Android socket programming example

Socket is a kind of interface for different sides t communicate, it usually identified by an IP and a port. There are many server side software on a server and they would provide different service. Each server many create some sockets and bind them to some ports so that clients can listen to. Software on the Internet will exchange data though a bidirectional connection established. Each end of the connection has a socket created. In Java, Socket and ServerSocket are in java.net package, ServerSo...

   Android,Socket,Java     2013-05-11 22:17:16

  Beauty of front end--List of front end tools used by GitHub

I did this summarization when I added Lirate_CoffeeScript support for GitHub-Linguist, i.e how does GitHub do Marjdown render and code highlight in its front end. Lots of font end tools used by GitHub are open sourced. They are: 1. HTML/CSS/JavaScript 1.1 HTML template GitHub markup and template styleguide : https://github.com/styleguide/templates 1.2 Style and CSS GitHub uses replacement of CSS: SCSS：https://github.com/nex3/sass KSS：https://github.com/kneath/kss GitHub CSS styleguide ...

   GitHub, front end,Tool     2013-03-07 03:46:42

  5 Mistakes Developers Should Avoid before Launching Their API

Time is money in the API industry, and everyone wants to be timely for the API’s milestone event: its eventual launch. Delays in this event can be very costly, so the sooner the API can be integrated, the better. Many developers start their work knowing quite well that the clock is ticking. But prioritizing a quick launch—at the cost of everything else—can do a lot of damage in the long run. A rushed launch may result in unstable integration, a host of errors and bugs, lower en...

   TIPS,API DESIGN     2020-05-18 07:08:22

  10 tools to make your shell script more powerful

Many people mistakenly think that shell scripts can only be run in command line. In fact shell can also call some GUI components such as menus,alert dialogs, progress bar etc. You can control the final output, cursor position and various output effects. Here we introduce some tools which can help you create powerful, interactive and user friendly Unix/Linux shell scripts. 1. notify-send This command can let you inform the process to send a desktop notification to users. This can be used to send ...

   shell,GUI,zenity     2013-04-05 08:50:41

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