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Mount VHD at Windows startup with PowerShell

lesca | Troubleshoot, Tutorials, Windows | 2017-05-29
Create a scheduled task Command: %SystemRoot%\system32\WindowsPowerShell\v1.0\powershell.exe Parameter: -ExecutionPolicy ByPass -file "C:\VHD\mountVHD.ps1" Powershell Script to mount VHD Method1: Mount-DiskImage (Recommended) This is the recommended command to mound VHD as it does not rely on the Hyper-V role. Mount-DiskIma... [阅读全文]

Debian or Raspbian: nfs-kernel-server not starting portmapper is not running

lesca | Tutorials | 2016-05-04
Error Message Debian or Raspbian: nfs-kernel-server not starting portmapper is not running … (warning) rpcbind.target Fix Steps Here is my first try, but it doesn’t work for me. It just reset the configs. So if you messed it up, try this first. apt-get purge rpcbind nfs-kernel-server nfs-common apt-get install ... [阅读全文]

HP 服务器 UID 指示灯的作用

lesca | Tutorials, Uncategorized | 2015-09-27
The Virtual Indicators allow you to monitor, and in some cases control, the state of indicators on the host system, including the Unit Identification Light (UID). The Unit Identification Light (UID) The UID helps you identify and locate a system, especially in high-density rack environments. Additionally, the UID is used to i... [阅读全文]
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Google Chrome 绿化与个性化教程

lesca | Tutorials | 2015-05-07
由于chrome v30开始有些特性不讨人喜欢,所以很多人喜欢停留在v29,只是在保留老习惯的同时,一些新的扩展就不能使用了。但是总不能让谷歌任行其道对吧?Lesca将以v29为例,介绍如何绿化Chrome,并在v29上使用Chrome Web Store上的新版本扩展,如Proxy SwitchyOmega。下面先奉上做好的绿色版。 做好的绿色版 百度网盘下载:Chrome-bin.zip 下载好后解压... [阅读全文]

Test Peer to Peer Connection Speed with iperf3

lesca | CentOS, Tutorials, Windows | 2015-04-08
Hi! I am writing to explain how to test your network connection between your client (Windows or Linux) and another client (say, a remote server). The tool is iperf version 3. You can find some useful explanations and examples on this French site: https://iperf.fr/ But the version stays at 2 which does not have some amazing ne... [阅读全文]
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备份与还原MySQL从服务器

lesca | SQL, Tutorials | 2015-04-01
上一节中我们介绍了如何在CentOS 7上配置MySQL的主从复制模式,今天Lesca将介绍如何备份和还原MySQL的从服务器,平台仍然是CentOS 7。 使用mysqldump进行备份和还原 使用mysqldump进行备份 mysqladmin stop-slave -uroot -p mysqldump --all-databases > fulldb.dump mysqladmin start-slave -uroot -p tar -czf /tmp/dbdump.tar.gz ./fulldb.dump... [阅读全文]
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在CentOS 7上配置MySQL的主从复制模式 (Master-Slave Replication)

lesca | SQL, Tutorials | 2015-03-31
MySQL的主从复制广泛用于数据库备份、故障转移、数据分析等场合。 MySQL主从复制基于主服务器在二进制日志中跟踪所有对数据库的更改(更新、删除等等)。因此,要进行复制,必须在主服务器上启用二进制日志。从服务器从主服务器接收已经记录到其二进制日志的更新,当一个从服务器连接主服务器时,主服务器从日志中读取最后一次成功更新的位置,从服务器... [阅读全文]
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How to configure your proxy client

lesca | Tutorials, VPN | 2015-02-17
How to configure your proxy client
You can use a proxy server to access the complete web features as usual. HTTP Proxy Server: 10.10.10.1 Port: 3128 Internet Explorer If you are using IE, you should go to Internet Options -> Connections -> Dial-up and Private Network settings, find the dial connection and click the Settings button. From there, you will find ... [阅读全文]
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加速WEB访问:使用DNSmasq与squid代理并过滤广告

lesca | CentOS, Tutorials | 2015-02-07
简介 DNSmasq是一个小巧且方便地用于配置DNS和DHCP的工具,适用于小型网络,提供了DNS功能和可选择的DHCP功能。通过其DNS缓存的功能,可以大大提高公共网络中的域名解析速度,从而提升网站访问速度。 squid代理服务提供了WEB页面缓存的功能,也可以帮助用户加速网站的访问,还能进行必要的行为管控(如禁止访问某些网站、过滤网页中的某些内容等)。本... [阅读全文]
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坑爹!iOS8不支持LEAP了!

lesca | Tutorials | 2014-10-25
故事背景 这两天研究了下Cisco无线AP的Local Radius Server功能。本来是思路很清楚的事情,可是配好后发现我的iphone怎么也连不上去! 后来调查了一下,才发现iOS8竟然不支持LEAP了[4]!!折腾了两天~~ 还是把主要步骤写下吧~~ 配置命令 VLAN SZH2_Mobile1(config)#interface Dot11Radio 0.1 SZH2_Mobile1(config-subif)#encapsulation dot1Q 1 nat... [阅读全文]
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