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  Facebook's new milestone : 1 billion active users per month


Social network giant Facebook's monthly active users reach a new milestone -- 1 billion, this means 1 out serven people on earth is using it. Facebook CEO Mark Zuckerberg announced this news in an open letter. He wrote : This morning, there are more than one billion people using Facebook actively each month.If you're reading this: thank you for giving me and my little team the honor of serving you.Helping a billion people connect is amazing, humbling and by far the thing I am most proud of in m...

   Facebook, Active user,Milestone     2012-10-05 05:02:32


  Crazy! 618 million daily active users on Facebook


Facebook released 2012 Q4 financial report. Facebook total revenue in the fourth quarter of 2012 is $1.585 billion, an increase of 40% over the same period last year, about 23% of the total revenue are from mobile advertising. Net profit is $64 million, down 79% over the same period last year.Now Facebook monthly active users reach 10.6 million, daily active users reach 618 million. The daily active users from mobile are more than the daily active users from desktop side the first time.In the e...

   Facebook,Financial report,Mobile     2013-01-31 03:13:06


  FTP active mode and passive mode


1. What's active mode and passive mode a. FTP has two ports to control: Port 20 is for data transfer Port 21 is for control or establish TCP connection b. The process of active connection Note: C represents Client and S represents Server S opens port 20 and 21 C connects to port 21 of S with a random port, this port can be between 1024 and 65536, it sends port+x to server at the same time to specify C(X)->S(21) When S receives the command, it will sends back ACK, S(21)->C(X) S will set ...

   FTP,Active mode,Passive mode     2013-04-01 07:01:25


  Install and setup vsftpd on AWS server


When developing websites, frequently we may need to upload source codes to the remote server. To ease of thew work, many website developers set up FTPs to upload the files. This post is a tutorial on how to install and setup vsftpd on a server. vsftpd is a very popular FTP service on Unix-like systems. Open command terminal, then install the vftpd by issuing command yum install vsftpd or sudo apt-get install vsftpd After installing the vsftpd, the config file needs to be updated based on the ope...

   FTP,vsftpd,AWS,Passive,Active     2015-02-02 02:20:27


  Tencent released Q1 earning report of 2013


Tencent has released the earnings report of Q1 in 2013, the total revenue is $2.1611 billion which increases  11.5% compared to last quarter and increases 40.4% compared to the same time last year. The  profit is 649.4 million US dollars which increases 17.3% compared to last quarter and increases 37.4% compared last year.The three main profit generators are:1. Value-added services revenue of 1.7014 billion US dollars with an increase of 13.6% compared to last quarter and an increase o...

   Tencent,Earnings report,WeChat     2013-05-15 07:02:45


  Twitter user database is hacked


According to Sina Tech, One hacker from Islamic Republic of Mauritania claimed today that he had acquired Twitter's entire user database and he shared over 15000 user account information on file sharing website Zippyshare.These information include the name of each account on Twitter, username and access tokens of third-party applications which have access to their Twitter accounts(such as Instagram or HootSuite).Twitter has yet to comment on the matter, but the company sent messages urging ...

   Twitter,Hacker,Access token     2013-08-20 10:49:44


  Google releases Analytics real time API


According to Tech Crunch, Google finally released its Analytics real time API. Although this feature was launched two years ago, there was no convenient way for webmasters to adjust the data so that they can be viewed properly. Now developers can use the API to get what they want and utilize these data to do what they want to. Developers need to apply for using the API now. Once you get access to this API, then you can search your own real time data and utilize these data as you want to. For ex...

   Google Analytics,API,Real time     2013-08-02 00:05:56


  Solve Hibernate "Too many connections" issue in MySQL


When working with Hibernate and MySQL, sometimes some exceptions will be thrown after sometime. The exception may seem like : java.sql.SQLException: Data source rejected establishment of connection, message from server: "Too many connections" This means there are too many active connections on the MySQL, you can use SHOW STATUS LIKE '%Threads_connected%'; to check the active connections to MySQL. If you want to change the maximum connections allowed to MySQL. You can execute: set global max_co...

   MySQL,Hibernate,Clos     2013-09-04 22:20:49


  Twitter prosecuted five companies


Recently Twitter sought help from law enforcement agencies because they can not stand spam emails. On Thursday, Twitter prosecuted five separate companies which provide tools so that spam on Twitter can be spread easier.Twitter said in a statement, Twitter now has 140 million active users, and the number of users are still increasing quickly, as Twitter continues to grow, spam also began looking to come to. Although the content of the spam on Twitter is not the proportion, it still gave rise to ...

   Twitter,Spam,Prosecution     2012-04-06 01:58:37


  Why cannot Renren be China's Facebook?


Yizhou Chen, CEO of China's SNS community Renren, shouted "one war, three battles". We do not know now how the battle progresses. Currently Renren's net market value is $1.3 billion where 900 million of them are in cash, it means the market values Renren 400 million US dollars only which is far lower than Facebook. Why cannot Renren be China's Facebook? This is a very interesting topic, many users share their opinions, Some of the main points are summarized as follows:Facebook pay more attentio...

   Renren, Facebook,SNS     2012-11-22 11:44:33