LK StackIn general:1, developers are unable to log on to the online server to view log information2, various systems log a wide range of log data scattered difficult to find3, the volume of log data is large, the query speed is slow, the data is not enough real time4, a call involves multiple systems, which makes it difficult to locate data quickly in these systems
Elk Stack = Elastic Search + Logstash + Kibana20160305165135.pngHere's Redis, loosely coupled, any data written to Redis can be
El
Mod_jkConfigure Apache to connect to Tomcat through the MOD_JK moduleMOD_JK is an ASF project, is a work on the Apache side based on the AJP protocol and Tomcat Communication connector, it is a module of Apache, is the AJP protocol client (server is Tomcat AJP connector).
[Root@nginx-proxy2 conf.d]# CD[Root@nginx-proxy2 ~]# Tar XF tomcat-connectors-1.2.40-src.tar.gz[Root@nginx-
As with traditional distributed remote calls, WCF service invocations are aided by service proxies. Channelfactory
In fact, even if a service invocation is made through the Clientbase
First, how to implement the cache of channelfactory
To give readers an intuitive understanding of the channelfactory
1:calculatorclient proxy1 = new Calculatorclient ("Calculateservice"); 2:proxy1. Open (); 3:calculatorclient Proxy2 = new Calculatorclient ("C
"); Console.ResetColor(); }
#region IDisposable Members public void Dispose() { Console.ForegroundColor = ConsoleColor.Yellow; Console.WriteLine("The IDisposable.Dispose method is invoked\r\n"); Console.ResetColor(); } #endregion }
The parameters of the add method are accumulated in the Variable _ result class, and finally returned through getresult. At the same time, the current sessionid is output in each
Mod_proxy Load Balancing
Lamt based on Mod_proxy scheduling
Support for Proxy_balancer_module (shared) modules based on mod_proxy load balancing
Modify mod_proxu.conf file, add two tomcat hosts, LB for load balancing name
[Root@nginx-proxy2 conf.d]# Cat mod_proxy.confProxyvia onProxyrequests offProxypreservehost onBalancermember http://10.0.0.53:8080 loadfactor=1 Route=tomcataBalancermember http://10.0.0.54:8080 loadfactor=1 ROUTE=TOMCATBProxypass
Lishiproxy (IPerson IPerson) {Super ();This.ip = IPerson;}public void Show () {Ip.show ();}} 4: Test class calls the proxy class for testingPackage Com.proxy;import Org.junit.test;public class Lishitest {@Testpublic void showls () {Lishi ls = new Lishi ();//an Agent can Sufficient to implement multiple implementation classes IPerson Lip = new Lishiproxy (LS); lip.show ();}} 2:java Dynamic AgentFirst steps.1: Create an interfacePackage Com.proxy2;public interface Iperson2 {public void eat ();
server.
X-Forwarded-For: it is an HTTP request header field used to identify the original IP address of the client connecting to the Web server through HTTP proxy or Server Load balancer.
The validity of XFF depends on the authenticity of the original IP Address Provided by the proxy server. Therefore, the effective use of XFF should ensure that the proxy server is credible. For example, you can establish a trusted server whitelist.
The general format of this HTTP header is as follows:
X-Forw
(). toLocaleString ());
System.out.println ();
* * Agent object enhances the function of the agent/igameplayer Proxy2 = new GamePlayerProxy2 ("M");
Proxy2.login ("Lisi", "EFG");
Proxy2.killboss ();
Proxy2.upgrade ();
System.out.println (); * * Dynamic Agent: Using the In
not know the proxy object, call a proxy object to complete its function */IGamePlayer proxy = new GamePlayerProxy ("X"); System. out. println ("Start Time:" + new Date (). toLocaleString (); proxy. login ("zhangSan", "abcd"); proxy. killBoss (); proxy. upgrade (); System. out. println ("End Time:" + new Date (). toLocaleString (); System. out. println ();/** the proxy object enhances the proxy object function */IGamePlayer proxy2 = new GamePlayerProx
Puppet Apply Command parameter IntroductionPreviously said puppet two modes of operation, the first type: C/S structure, the second type: single-machine operation. Apply is a code tool that executes local *.pp files independently, and is typically used to test debug puppet code locally.Puppet Apply Common parameters:[[Emailprotected]~]#puppetapply-hpuppet-apply (8) --applypuppet manifestslocally========synopsis--------Appliesastandalonepuppetmanifest tothelocalsystem. USAGE-----puppetapply[-h|--
"handshake". If you use anonymous proxy, REMOTE_ADDR displays the IP of the proxy server.X-forwarded-for: is the HTTP request header field that is used to identify the most original IP address of the client that is connected to the Web server through an HTTP proxy or load balancer.The validity of the xff depends on the authenticity of the connection original IP address provided by the proxy server, so the effective use of XFF should ensure that the proxy server is trustworthy, such as by establ
is an acceptableIf you have any questions or concerns, please refer to accepts's additional documentationreq.is (type)Check that the submitted request contains the "Content-type" header field and that he matches the given MIME Type1 //With content-type:text/html; Charset=utf-82Req.is (' HTML ');3Req.is (' text/html ');4Req.is (' text/* ');5 //= True6 //When Content-type is Application/json7Req.is (' JSON ');8Req.is (' Application/json ');9Req.is (' application/* ');Ten //= True OneReq.is (' HTM
software Squid to indicate the real IP address of the HTTP request, it has become a de facto standard and is widely used by major HTTP proxy, Server Load balancer, and is written into RFC 7239 (Forwarded HTTP Extension) standard.
The format of the X-Forwarded-For request header is very simple, as shown in the following code:
X-Forwarded-For: client, proxy1, proxy2
As you can see, the content of XFF consists of multiple parts separated by commas (,) a
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