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IT technical memo of networking

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DS-Lite (IPv4 over IPv6) Internet connection with CentOS

This article tested Internet access speedup by IPv6 connection, but IPv6 Plus (MAP-E) provided by @nifty requires dedicated equipment, the Cisco ASA5505, VyOS, Linux etc. can only perform simple IPoE connection , It was not possible to spe…

Turn on/off iTerm's Vim scroll setting (not use .vimrc)

Change the scroll setting when switching to Vim screen with iTerm 2 popular as a MacBook terminal. I often see an article saying .vimrc the following setting, but it did not work well in my environment. vi ~/.vimrc set mouse=a This time, n…

AND/OR mixed sorting rules in Outlook

When setting the sorting rule in Outlook, AND / OR combination can not be done well if it is the usual setting. I will introduce the recommended settings especially when you want to use the OR condition. Microsoft Community There is a simi…

Correspondence table between Ubuntu OS version and kernel version

Ubuntu is one of the major distributions of Linux and has a wide share in desktop applications. When installing various software, it is necessary to pay attention to the version of kernel in addition to the version of the OS itself. The co…

SSH to CentOS with Chromebook Secure Shell public key authentication

With Secure Shell provided with Chromebook (Google Chrome), you can run Linux (CentOS) server without TeraTerm on Chromebook. In this procedure, switching to developer mode is unnecessary. Generate public key When generating a public key o…

Configure wildcard DNS on Windows Server

PaaS such as Cloud Foundry generally routes to the CF Router with wildcard DNS, then it will route HTTP from the host of the FQDN within the CF. We will show you how to configure wildcard DNS with the DNS server function of Windows Server …

Verify Windows Server 2016 for free (upgrade from TP 4)

As introduced in this article, Windows Server can be used free of charge for free for 180 days as an evaluation version. Windows Server Free Usage (2016 Technical Preview 4) - designetwork(EN) Windows Server TP4 has already expired, and yo…

Android Application cannot be installed to chromebook

Chromebook I have a mobile notebook PC. That the Android app is now available, there has been a great additional specifications. However, I have not been able to download and use the Android app from Google Play. To introduce Unfortunately…

Windows Symbolic Link cannot be romoved

Symbolic Link is widely used in Linux. Even Windows, can be created by using the mklink command from the command prompt. Environment and the authority The error occurs in the workplace of the domain environment, while participating domains…

Avoid the Error " Windows can't open this file..." and checkout the permanent of checking

When you open a file of Windows 7 in unregistered extension, or to download the corresponding software from the Web, there is a need to choose whether to open in the software that is installed on the PC. But this selection, but in many cas…

How to install and use Windows Server 2016 Technical Preview 5

It introduced an indefinite period can be used free of charge, free of charge to Windows Server 2016 Technical Preview 4, but already TP5 is released, TP4 are distributed end. Desktop is made in the same manner as in this way Windows10. Wi…

Windows Server Free Usage (2016 Technical Preview 4)

How to use Windows Server that is usually need to use the paid, free of charge and forever (no expire) . Windows Server can not be used for quite feel free in the home or test environment. It can be used indefinitely for free - free of cha…


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Sorry if my English sentences are incorrect.

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