otp authenticator

Download Google's authentication module # wget https://google-authenticator. googlecode.com/files/libpam-google-authenticator-1.0-source.tar.bz2 Install dependent packages Yum-y install wget gcc make pam-devel libpng-devel Unzip and compile the installation # tar xvf libpam-google-authenticator-1.0-source.tar.bz2# CD libpam-googl

Before listening to others said, with the XX home cloud, install a mobile app, each login needs to verify the dynamic password, and then enter the password, security greatly improved, the realization of the legendary two-factor landing, at that time feel good foreign flavor.Because before the angle of attention is different, I more is from the landing statistics and alarm to observe, after all, let you directly landed fortress machine or board machine not much, is I too out, heard that the doubl

Http://blog.sina.com.cn/s/blog_3fe961ae0101k4p6.htmlBehavior patterns are very similar to interfaces in object-oriented languages, at least as I understand them. The OTP behavior pattern divides some recurring patterns into two parts, the generic part and the implementation-specific part of the application, which is similar to the process of abstracting out an interface in object-oriented programming. This article gives an example of the most common b

Label:Magnus Ahltorp's MySQL driver introduces Emysql's flaws: 1. Isolation is not good enough, 2. Unable to stretch The MYSQL-OTP uses 1 processes with 1 MySQL connections, which are well isolated. Recommended use. Mysql-otp-poolboy uses Poolboy + ERLANG-OTP to form a thread pool, using Poolboy to avoid the lack or excessive number of threads. Reference: Which E

To prevent parameters from being too long on the command line, or to play some advanced configuration, you can use the Inets configuration file, which already has an example of various configuration files for the OTP project:[Email protected] ~]# CD otp_src_17.5/lib/inets/[[email protected] inets]# find.-type F-name *. config./test/Inets.config./src/inets_app/Inets.config[[email protected] inets]# find.-type F-name *. conf./examples/server_root/conf/8

Tags: des style blog HTTP Io OS AR for strong Previously, the following paper was mentioned in the Erlang paper we have read in [Erlang 0126:On preserving term sharing in the Erlang Virtual MachineAddress: http://user.it.uu.se /~ Kostis/papers/erlang12_sharing.pdfAbstract: In this paper we describe our experiences and argue through examples why? Attening terms during copying is not a good ideaA language like Erlang. More importantly, we propose a sharing preserving copying mechanic for Erlang/

Get ready:A Google two-step verification app, I'm using iOS identity treasureInformation:1.Google Authenticator principle and Java implementation//main reference76947962#2. What is the principle of Google verification (Google Authenticator)?https://www.zhihu.com/question/204626963. Google verification, also known as two-step verification,Https://www.360shouzhuan.com/android/news/youxi/1632.htmThis is Google

Reprinted: http://cryolite.iteye.com/blog/1663436 Erlang/OTP organizes a group of modules that complete specific functions, called applications. This is not a good name. It has different meanings from the conventional application. For example, in the development of Jee, the entire application system is called an application; in iOS, an independent game and a small tool are called an application.The Application of Erlang/

A brief description of OTP in Erlang and a brief description of ErlangOTP OTP contains a set of libraries and implementation methods to build large-scale, fault-tolerant, and distributed applications. It contains many powerful tools to implement H248, SNMP, and other protocols, the core concept is OTP behavior. It can be seen as an application framework that uses

Kerl has only one goal: let's switch between different versions of the OTP. He is a pure bash project. Simple and practical work tool!The use of the Readme has been explained very clearly. It is recommended to follow the process once.1. DownloadInstall (a bash script that doesn't have to be installed at all)Curl-o https://raw.githubusercontent.com/kerl/kerl/master/kerlchmod a+x Kerl2. Working principleGet all the release package information from offic

Erlang OTP is a complete and reliable large-scale library, is a great success of the predecessors; now try the application inets Web server httpd, write a code call Inets service:1 -module(INETS_HTTPD). 2 -export([start/0]). 3 4 Start ()5 inets:start (),6 Inets:start (httpd, [{bind_ Address, {192,168,178,130}}, {ipfamily, inet}, {port, 18080}, {service_admin, "[Email protected]"}, {server_name, " Whyang.yang.net "}, {server_root,". "}, {Server_

1> application: Start (log4erl ). Let's start with this command line. After you press enter, you can start the log4erl application. the component that can complete a specific set of functions in Erlang/OTP is called application ., application is one of the forms of Erlang code and function Organization ([Erlang 0015] Erlang OTP design principles ). application is designed to run one or more processes to com

The OTP contains a set of libraries and implementations that can build large-scale, fault-tolerant, and distributed applications, including many powerful tools to implement multiple protocols such as H248,SNMP, the core concept being the OTP behavior, which can be seen as an application framework with callback functions as parameters, similar to a Java EE container. Behavior is responsible for solving the n

hung, just restart the child process without affecting the other child Process), the only difference is that Simple_one_for_one can only dynamically add the child process and all the child process executes the same code, let's take a look at an example (from the official OTP document) Notice here that Startfunc: {call, Start_link, []} does not actually start a child process, but must dynamically add the child by calling Supervisor:start_child (Sup, L

In the OTP Introduction section of programming Erlang, the author shows us the Gen_server design ideas in a gradual manner, and now summarizes:Before we look at Gen_server, we'll look at a common server framework:In this server, you can hardly see anything related to a specific function, it only provides a basic framework that the server has, how does it work?When we call the start function, a service is started, and if the server receives a message,

Note: The original is from this Daniel The first time to write a blog article, inevitably there is a bug, writing this article purely to share experience with you, And then found that there are many such articles on the Internet, but, from my point of view, I was the Linux command, Bound to the corresponding IDE, plug-ins and so do not have direction, so I want to share my build process Relatively simple, in advance, this environment, after a good, big development should not be, However, it is s

= Lists:concat (["Mod:",? MODULE, "line:",? Line, "]"),STR1 + + FEnd)).-define (WARN (log, F, D), Log4erl:warn (log,? Addlineinfo (F), D)).This error occurs if WARN is used continuously* Many environment variables can be defined in Erlang:Erl_max_ets_tables set the maximum number of ETS by default 1400Erl_max_ports Erlang Maximum number of ports default 1024*. start_phases in app files, options can be used either as a synchronous start-up between include applications or as a distribution to a s

]). This function is very simple, just a line of logic, calling the system function:Proc_lib: spawn_link/3, Erlang Doc address: http://www.erlang.org/doc/man/proc_lib.html?spawn_link-3,e. g: This function is similar to the spawn_link function in the Erlang module. It initializes a process to execute the specified function in the specified module. What are the differences between processes created using proc_lib? I am not going to talk about it here. For details, refer to the article [Erlang 200

],[1,2,3,4,5,6,7,8,9,10],[1,2,3,4,5,6,7,8,9,10],[1,2,3,4,5,6,7,8,9,10],[1,2,3,4,5,6,7,8,9,10]]ok6> erts_debug:size(L2).327> erts_debug:flat_size(L2).132 　　 When starting shell, the shell PID is Eshell V6.0 (abort with ^G)1> self(). 　　 Why does it trigger data expansion (expand, flattening? See the following code. When the shell is started, the variable that has been bound previously will be used as the spawn_link parameter to start the new shell. erl6.2\lib\stdlib-2.2\srcstart_eval(Bs, RT

) this.getfieldvalue (FieldName, object);//bytes Final int bytes = Fieldvalue.getbytes (). length;//number of characters final int chars = Fieldvalue.length (), if (Mode.equals ("some")) {if (chars== bytes| | Chars*2==bytes) {This.addfielderror (FieldName, object);}}}declaring a custom validatorCreate a validators.xml under SRCPS:STRUTS2 2.0. Before the 8 version, once the custom validators.xml file is used, the system will no longer invoke the Struts2 predefined validator, so the struts2 defaul