------

[ AD ] Port Monitor ( Try to use a Best WebSite Monitoring Tool )

------

 

리눅스 sftp 서버 사용하기

http://zetawiki.com/wiki/%EB%A6%AC%EB%88%85%EC%8A%A4_SFTP_%EC%84%9C%EB%B2%84_%EC%82%AC%EC%9A%A9

 

# cat /etc/ssh/sshd_config | grep sftp
Subsystem	sftp	/usr/libexec/openssh/sftp-server

 

iptables 설정 ssh/22

http://webdir.tistory.com/170

 

iptables -A INPUT -p tcp -m tcp --dport 22 -j ACCEPT

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# 리눅스 프로세스 파일 위치 찾기 ( CentOS 6 )

 1) ps -ef | grep http

   PID

 2) file /proc/PID/exe

2) file /proc/PID/cwd

 

* PID는 숫자

* exe 실행파일명 위치 , cwd 디렉토리 위치

 

# CentOS 7에서 port 열기 

- 기존의 iptables가 교체 되고 변경 된것으로 보인다. ( CentOS 7에서는 deprecated된 cmd가 많다)

# 포트가 외부에서 접속되지 않는다면 포트를 방화벽에 추가합니다.
sudo firewall-cmd --zone=public --add-port=8000/tcp --permanent

# 방화벽을 리로드합니다.
sudo firewall-cmd --reload

출처 : http://okky.kr/article/276568


# Oracle VirtualBox에서 32bit OS만 보일때는 아래 2가지를 점검

1. BIOS, Intel Virtualization Technology (Enabled)

2. Windows Features,  Hyper-V conflict ( 선택 해제 )

출처 : http://www.fixedbyvonnie.com/2014/11/virtualbox-showing-32-bit-guest-versions-64-bit-host-os/#.VmZ8Dvl96Uk


# centos7에 ftp설치 하기

1. yum install vsftpd

2. firewall-cmd --permanent --add-port=21/tcp

출처 : http://www.liquidweb.com/kb/how-to-install-and-configure-vsftpd-on-centos-7/ 

Step 2 » After installation you can find /etc/vsftpd/vsftpd.conf file which is the main configuration file for VSFTP.
Take a backup copy before making changes .
[root@krizna ~]# mv /etc/vsftpd/vsftpd.conf /etc/vsftpd/vsftpd.conf.orgNow open the file and make changes as below
[root@krizna ~]# nano /etc/vsftpd/vsftpd.confFind this line anonymous_enable=YES ( Line no : 12 ) and change value to NO to disable anonymous FTP access.
anonymous_enable=NOUncomment the below line ( Line no : 100 ) to restrict users to their home directory.
chroot_local_user=YESand add the below lines at the end of the file to enable passive mode and allow chroot writable.
allow_writeable_chroot=YES
pasv_enable=Yes
pasv_min_port=40000
pasv_max_port=40100

Step 3 » Now restart vsftpd service and make it start automatically after reboot.
[root@krizna ~]# systemctl restart vsftpd.service
[root@krizna ~]# systemctl enable vsftpd.service
Step 4 » Add FTP service in firewall to allow ftp ports .
[root@krizna ~]# firewall-cmd --permanent --add-service=ftp
[root@krizna ~]# firewall-cmd --reload

Step 5 » Setup SEinux to allow ftp access to the users home directories .
[root@krizna ~]# setsebool -P ftp_home_dir on

출처 : http://www.krizna.com/centos/setup-ftp-server-centos-7-vsftp/

 

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여자는 왜 버리지 못할까?

 

여유만만

 

http://www.dailymotion.com/embed/video/k5S5ZVZtIhnYE8bJa9q?syndication=212325

 

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<flow for install >

yum update

yum install -y java

yum install tomcat tomcat-webapps tomcat-admin-webapps

 

<config before use>

vi /usr/shar/tomcat/conf/server.xml

->Port

>chkconfig tomcat on 

>service tomcat start

 

<iptables open>

iptables -I INPUT -p tcp --dport 80 -j ACCEPT

service iptables save

service iptables restart

 

reference : http://www.vr4servers.com/tomcat6/ 

 

 

 

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[case]

    >systemctl enable iptables.service
    Failed to issue method call: No such file or directory
 
[solution]

http://serverfault.com/questions/470287/how-to-enable-iptables-instead-of-firewalld-services-on-rhel-7-and-fedora-18

 

-> Answer

Make sure you have the iptables-services package installed.

yum install iptables-services

 

 

 

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home.jsp 깨짐


1. Before

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ page session="false"  %>


2. After

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ page session="false"  contentType="text/html; charset=UTF-8" %>



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Java was started but returned exit code=13

자바6에서 7이나 8로 업그레이드를 하게 된다면, JRE버젼의 실행 경로가 변경되어

기존에 설정된 eclipse정보가 변경되어 생기는 문제로 보임

enter image description here

-startup 
plugins/org.eclipse.equinox.launcher_1.1.0.v20100507.jar
 --launcher.library
 plugins/org.eclipse.equinox.launcher.win32.win32.x86_1.1.1.R36x_v20100810 
-showsplash
 org.eclipse.platform
--launcher.XXMaxPermSize 256m 
--launcher.defaultAction 
openFile 
-vm 
C:\Program Files\Java\jre6\bin\javaw.exe
-vmargs 
-Xms40m 
-Xmx384m

해당 Path정보를 추가하여, 실행 경로를 새로 설치된 버젼에서 변경을 해야 합니다.

 

 

 

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Log4j 사용하기 ( in MVC controller )

출처 :  http://zjhzxhz.com/2014/06/integrate-spring-mvc-with-log4j/

 

1. Log4j Library 프로젝트에 추가하기

1) Log4j-1.x.x.jar를 libray에 복사

2) Maven을 사용해서 자동 다운로드

 pom.xml

 <dependency>
    <groupId>log4j</groupId>
    <artifactId>log4j</artifactId>
    <version>1.2.17</version>
</dependency>

 

2. log4j.properties구성

 properties

 # LOG4J configuration
log4j.rootLogger=INFO, console, file
# Console Logger
log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=[%p] %d %c %x - %m%n

# File Logger
log4j.appender.file=org.apache.log4j.DailyRollingFileAppender
log4j.appender.file.File=${catalina.home}/logs/oes
log4j.appender.file.DatePattern='-'yyyy-MM-dd'.log'
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=[%p] %d %c %x - %m%n

 

3. 호출(사용법)

 Controller

 public class AAAController
{
    private Logger logger = Logger.getLogger(AAAController.class);
    public loginAction()
    {
        logger.info( String.format("name[%s]",new Object[] {name} );
    }
}

 

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아래 링크의 자료를 참고 하셔도 되고, 핵심 요소들만 간추렸습니다.

orginal src : http://zjhzxhz.com/2014/04/spring-4-mvc-hello-world-tutorial-using-maven/

 

프로젝트 생성 -> 설정 파일 -> Controller -> JSP순서로 생각하시면 됩니다.

 

> 사용된 버젼:

-spring 4.0.4.RELEASE

-JDK1.8

-Tomcat 7.0.53

-Maven 3.2.1

-Eclipse Java EE IDE / Eclipse Kepler

 

> 프로젝트 셋업하기 (절차 )

-Maven Project선택

-Web, org.apache.maven.archetypes, maven-archetype-webapp 선택

-GroupId : com.happystudio / -Artifact id : spring
-Version : 0.0.1-SNAPSHOT  입력 및 선택

<에러발생시>
* ~~ "..HttpServlet" was not found on the Java Build Path 에러는

        http://stackoverflow.com/questions/22756153/httpservlet-was-not-found 참조

>>> pom.xml 

<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/maven-v4_0_0.xsd">

    <modelVersion>4.0.0</modelVersion>
    <groupId>com.happystudio</groupId>
    <artifactId>spring</artifactId>
    <packaging>war</packaging>
    <version>0.0.1-SNAPSHOT</version>
    <name>Spring MVC Tutorial</name>
    <url>http://maven.apache.org</url>

    <properties>
        <spring.version>4.0.4.RELEASE</spring.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.11</version>
            <scope>test</scope>
        </dependency>
    </dependencies>
    <build>
        <finalName>Spring MVC Tutorial</finalName>
    </build>
</project>

 >>> dispatcher-servlet.xml ( put in webapp/WEB-INF/ )

 <beans xmlns="http://www.springframework.org/schema/beans"

    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
    http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-4.0.xsd">
    <context:component-scan
base-package="com.happystudio.spring.controller" />
 
    <bean
        class=
"org.springframework.web.servlet.view.InternalResourceViewResolver">

        <property name="prefix">
            <value>/WEB-INF/views/</value>
        </property>
        <property name="suffix">
            <value>.jsp</value>
        </property>

    </bean>
</beans>

 

>>> web.xml 

 <?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="2.5"
    xmlns="http://java.sun.com/xml/ns/javaee"

    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
    http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
 
    <display-name>Spring MVC Tutorial</display-name>
 
    <servlet>
        <servlet-name>dispatcher</servlet-name>
        <servlet-class>
            org.springframework.web.servlet.DispatcherServlet
        </servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
 
    <servlet-mapping>
        <servlet-name>dispatcher</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
 
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/dispatcher-servlet.xml</param-value>
    </context-param>
 
    <listener>
        <listener-class>
            org.springframework.web.context.ContextLoaderListener
        </listener-class>
    </listener>
</web-app>

 

> Controller만들기  : src/main/java/밑에 com.happystudio.spring.controller 패키지 생성

 package com.happystudio.spring.controller;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
 
@Controller
public class HelloWorldController {
 
    @RequestMapping("/hello")
    public String hello(
            @RequestParam(value = "name",
required = false, defaultValue = "World") String name,
            Model model) {
        model.addAttribute("name", name);
        return "helloworld";
    }
 
}

 

> JSP 만들기 :

 <%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>

<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Spring MVC Tutorial</title>
</head>
<body>
    <h1>Hello : ${name}</h1>
</body>
</html>

 

 

> 빌드 :

We can generate a War file and deploy that to a web server to test the application. In eclipse , right click the project and Click Run As –> Maven Install. This will build the project and create a war file in the target folder. In the case of this example the file will be spring.war

> 실행 (테스트) :

You can get an greeting by visiting http://localhost:8080/spring/hello/?name=HAp

 

 

 

 

 

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maven project에서 생성후에

<에러 발생 메시지>

The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path

 

<해결책>

프로젝트 속성에서 "Project Facets"의 설정을 마무리

Select runtime from Project Facets as shown in image

 

 

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