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I'm looking to add some functionality to a batch file that I've been writing; essentially what happens is I dial up a VPN connection using openvpn and then continue to mount a network drive as well as many other things, what I'm looking to do is: Dial the connection via OpenVPN (which I have working fine) Ping a host on the other side of the VPN and don't continue through the batch file until this host is reachable. Currently I've been using a sleep command of 20 seconds which works, but is not a very clean or intelligent way of going about it; I'd imagine I need some sort of loop to attempt

一. 安装mysql5.6 1、下载mysql5.6免安装版本 # cd /root # wget https://dev.mysql.com/get/Downloads/MySQL-5.6/mysql-5.6.37-linux-glibc2.12-x86_64.tar.gz 2、解压mysql5.6到/usr/local/mysql5.6 # mkdir -p /usr/local/mysql5.6 # mkdir -p /data/mysql5.6 # tar xf mysql-5.6.37-linux-glibc2.12-x86_64.tar.gz # mv mysql-5.6.37-linux-glibc2.12-x86_64 /usr/local/mysql5.6 3、创建mysql用户 # groupadd mysql # useradd -r -g mysql mysql # chown -R mysql:mysql /usr/local/mysql5.6 # chown -R mysql:mysql /data/mysql5.6 4、初始化mysql # /usr/local/mysql5 . 6/scripts/mysql_install_db - - user=mysql - - datadir=/data/mysql5 . 6/ - - basedir=

In my ISP, they must hire service SQL Server to host a sql server compact framework? The fact that MVC requires the host to have some extra service? Or a simple hosting plan already supports asp.net MVC? You can bin-deploy SQL CE 4. Just make sure you are using the RTM version because there was a problem with bin-deployment in betas. Also see Scott Gu's blog post about it. ASP.NET MVC 3 can also be bin-deployed if your hosting provider doesn't have the assemblies installed in the GAC. All that's need is .NET 4.0. This being said SQL CE is an embedded database and not designed to work in a

start方法会先判断其所持有的Server引用是否为 null，否则会调用一次load方法，如果还是为null，则会结束应用程序(System.exit(1);)。 调用Server的start方法。 向JVM添加关闭钩子。 start @ StandardServer 调用了Service的init方法。 start @ StandardService 调用了Engine、mapperListener和connector的start方法。 start @ Engine 异步调用了子容器（在这里是Host的start方法）。 start @ StandardHost 如果Host的过滤链里没有org.apache.catalina.valves.ErrorReportValve，则将其添加进去。 异步调用了子容器（在这里是Context的start方法）。 start @ StandardContext 226行代码里做了很多Context配置的工作，启动了Session Manager，启动了Pipeline等。 来源： https://www.cnblogs.com/Logan12138/p/12003909.html

读这篇时提到:http://www.mkyong.com/webservices/jax-ws/suncertpathbuilderexception-unable-to-find-valid-certification-path-to-requested-target/ 以下为FQ转载 When communicating with a server using a self-signed SSL using a Java based client, this custom certificate must be known by the callee side of the communication. This can be done manually by adding the certificate to the client JVM. To simplify this process, one can use a simple tool called InstallCert as described here and here . This application was originally written for Java 5 / Java 6. While this solution still works, when you try to run this

摘要 为了更好的解决分布式环境下多台服务实例的配置统一管理问题，本文提出了一套完整的分布式配置管理解决方案（简称为disconf[4]，下同）。首先，实现了同构系统的配置发布统一化，提供了配置服务server，该服务可以对配置进行持久化管理并对外提供restful接口，在此基础上，基于zookeeper实现对配置更改的实时推送，并且，提供了稳定有效的容灾方案，以及用户体验良好的编程模型和WEB用户管理界面。其次，实现了异构系统的配置包管理，提出基于zookeeper的全局分布式一致性锁来实现主备统一部署、系统异常时的主备自主切换。通过在百度内部以及外部等多个产品线的实践结果表明，本解决方案是有效且稳定的。 技术背景 在一个分布式环境中，同类型的服务往往会部署很多实例。这些实例使用了一些配置，为了更好地维护这些配置就产生了配置管理服务。通过这个服务可以轻松地管理成千上百个服务实例的配置问题。 王阿晶提出了基于zooKeeper的配置信息存储方案的设计与实现[1], 它将所有配置存储在zookeeper上，这会导致配置的管理不那么方便，而且他们没有相关的源码实现。淘宝的diamond[2]是淘宝内部使用的一个管理持久配置的系统，它具有完整的开源源码实现，它的特点是简单、可靠、易用，淘宝内部绝大多数系统的配置都采用diamond来进行统一管理。他将所有配置文件里的配置打散化进行存储