这几天老蒋都在折腾WDCP面板环境，这些东东看似比较简单，而且也提供一键安装包以为就这么安装就完事，但真正遇到问题是在过程中。比如一个朋友的网站程序需要支持pdo_mysql组件才可以安装，而且之前告诉我是只要PHP5.3版本就可以，我也帮他安装了PHP5.3（WDCP升级PHP5.3），但是查阅网上的很多教程都无法再PHP5.3的基础上安装PDO_MYSQL组件。今天从上午到下午，在网友的帮助以及查阅且翻遍所有的网络教程，都没有解决99.999%都是错误误导大家的，比如下载所谓的PDO_MYSQL-1.0.2文件，然后进行安装编译，都是错误的。这里老蒋整理了最为完整的教程，让我们在升级PHP5.3的时候一并安装PDO_MYSQL。需要注意的：我们默认安装的WDCP是PHP5.2版本，不要急着升级，我们直接下面下面的升级包，升级的时候直接就可以安装PDO_MYSQL。wget http://soft.itbulu.com/wdcp/php_up53.shsh php_up53.sh执行上面的脚本，我们需要等待之后PHP版本就会升级到5.3，而且我们可以看到探针中已经支持PDO_MYSQL，而且无需修改任何文件。下面的内容是具体升级脚本.#!/bin/bash###yumyum install -y libmcrypt-devel libjpeg-devel libpng-devel freetype-devel curl-devel openssl-devel libxml2...

Windows 2008r2 - IIS 7.5 - Tomcat 715 Apr 2013. How to install Tomcat 7 on a Windows server 2008r2 with IIS 7.5. While I assume you already have a windows server 2008r2 with IIS 7.5 up and running, this document is a step-by-step tutorial installing Tomcat.What Tomcat isInstall TomcatInstall Tomcat as a Windows ServiceUse IIS as webserver frontend for TomcatBonus : Hello World examples (JSP, JavaBean, Servlet, SqlServer)Appendix : Acronyms & ConceptsAppendix : Common Errors & SolutionsCommentsWhat Tomcat isIn short Tomcat is a server that executes Java Servlets and JSP web pages.Tomcat consist of 3 main components :Catalina : module that executes Java code servlets.Jasper : module that parses JSP files and compile them into Java code servlets, thereby making it possible for Catalina to execute them.Coyote : module that listens for http traffic default on port 8080, forwards requests to Tomcat for processing and sends back the result to the requesting client.In addition several...

一、JDK1.7安装1、下载jdk，下载地址：http://www.oracle.com/technetwork/java/javase/downloads/jdk-7u1-download-513651.html2、添加系统环境变量，我的电脑->属性->高级->环境变量（如果添加的环境变量已经存在，点击“编辑”添加，否则点击“新建”添加）（1）变量名： JAVA_HOME    变量值： D:\Program Files\Java\jdk1.6.0_29（点击“新建”，输入变量名、变量值，变量值末不需要分号）（2）变量名： CLASSPATH    变量值： D:\Program Files\Java\jdk1.6.0_29\lib\dt.jar;D:\Program Files\Java\jdk1.6.0_29\lib\tools.jar（“新建”，变量值末不需要分号）（3）变量名： Path    变量值： D:\Program Files\Java\jdk1.6.0_29\bin（“编辑”，变量值使用英文分号隔开，变量值末不需要分号）3、“开始”->“运行”->输入cmd，在命令提示符中输入“java -version”，“java”，“javac”几个命令，出现画面，说明环境变量配置成功二、Tomcat7.0.22安装配置1、下载tomcat7.0.22  下载地址：http://tomcat.apache.org/download-70.cgi2、添加系统环境变量，我的电脑->属性->高级系统设置-...

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ubuntu下安装l2tp进行vpn拨号 Connecting to a L2TP/IPSec VPN from Ubuntu desktop In my previous post, “Secure IPsec/L2TP VPN for on the road android devices” I have written on how to set up an IPsec/L2TP VPN server and connect to it from any android device. I was really impressed how simple it was to configure a secure VPN tunnel with IPSEC, so I decided to go a bit further and try to use the same tunnel with Ubuntu Desktop. Unfortunately the IPsec/L2TP client side isn’t well supported under Linux, this is maybe beacuse everyone is using OpenVpn. At the end I stumbled into Werner Jaeger launchpad page, where I found aGUI to manage IPsec/L2TP connection from Ubuntu Desktop, the connection set up is very straightforward and without glitches. Along with a simple PSK configuration, the GUI allow to use certificate for authentication and more advanced L2TP options as redial- timeout and attempts and of course all important PPP options.A more extended guide can be found...

centos默认使用UTC时区，中国用户需要修改成自己的时区，这篇文章主要介绍了centos更改时区的方法,需要的朋友可以参考下对于中国用户，如果centos默认使用UTC时区，那时间相差八个小时，其实可以通过简单的设置，变为中国时区，这时候机器上的时间和本地手表上的时间就是一致的。执行如下命令：cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime就可以了，如果没有看到/Asia/Shanghai文件，手动执行以下 tzselect ，按照提示选择即可。完毕！[root@oracle ~]# timedatectl       Local time: 五 2015-11-06 16:32:18 CST  Universal time: 五 2015-11-06 08:32:18 UTC        RTC time: 五 2015-11-06 08:32:23        Timezone: Asia/Shanghai (CST, +0800)     NTP enabled: yesNTP synchronized: yes RTC in local TZ: yes      DST active: n/aWarning: The RTC is configured to maintain time in the local timezone. This         mode is not fully supporte...

用tzselect和tzconfig可以设置时区。于是，先用tzselect试了下，结果提示什么root@ubuntu:etc# tzselect /usr/bin/tzselect: line 171: /etc/iso3166.tab: No such file or directory/usr/bin/tzselect: time zone files are not set up correctly在网上找了下资料没什么头绪，又试了下tzconfig，结果又提示WARNING: the tzconfig command is deprecated, please use: dpkg-reconfigure tzdataCentos 系统可以使用yum reinstall tzdata 重新安装软件包。最后用dpkg-reconfigure tzdata才成功了，接下来再配置好/etc/ntp.conf才算结束。 #server 0.ubuntu.pool.ntp.org #server 1.ubuntu.pool.ntp.org #server 2.ubuntu.pool.ntp.org #server 3.ubuntu.pool.ntp.org server ntp.sjtu.edu.cn

ESXI  VMotion fails at 10% with a memory resource error (1006408) Symptoms VMotion fails at 10% Cannot power on virtual machineThe vmware.log file for the virtual machine that fails to migrate contains messages similar to:Jul 17 09:21:31.809: vmx| [msg.vmmonVMK.admitFailed] Could not power on VM : Admission check failed for memory resourceJul 17 09:21:31.809: vmx| Please refer to the VMware ESX Server Resource Management Guide for information on resource management settings.Jul 17 09:21:31.809: vmx| [msg.monitorLoop.createVMFailed] Failed to power on VM----------------------------------------Jul 17 09:21:31.825: vmx| Module MonitorLoop power on failed. Resolution The message Admission check failed for memory resource indicates that the destination host is unable to accept the virtual machine because of a resource constraint. You must check resource settings and change the settings if necessary: To check resource settings:From the Inventory pane in VMware Inf...

CentOS 6.3部署LVS(NAT)+keepalived实现高性能高可用负载均衡一、简介VS/NAT原理图：二、系统环境实验拓扑：系统平台：CentOS 6.3Kernel：2.6.32-279.el6.i686LVS版本：ipvsadm-1.26keepalived版本：keepalived-1.2.4三、安装0、安装LVS前系统需要安装popt-static，kernel-devel，make，gcc，openssl-devel，lftp，libnl*，popt*1、在两台Director Server上分别配置LVS+KeepalivedLVS install -------------[root@CentOS-LVS_MASTER ~]# wget http://www.linuxvirtualserver.org/software/kernel-2.6/ipvsadm-1.26.tar.gz[root@CentOS-LVS_MASTER ~]# ln -s /usr/src/kernels/2.6.32-279.el6.i686//usr/src/linux/[root@CentOS-LVS_MASTER ~]# tar zxvf ipvsadm-1.26.tar.gz[root@CentOS-LVS_MASTER ~]# cd ipvsadm-1.26[root@CentOS-LVS_MASTER ipvsadm-1.26]# make && make installKeepalived install -------------[root@CentOS-LVS_MASTER ~]# wget http://www.keepalived.org/software/keepalived-1.2.4.tar.gz[root@CentOS-LVS_MASTER ~]# tar zxvf keepalived-1.2.4.tar.gz[root@CentOS-LVS_MASTER ~]# cd keepalived-1.2.4[root@CentOS-LVS_MASTER keepalive...