集多系統優勢於一身 Remix OS桌面動手玩

在企業的IT環境內，過去以開放原始碼為主的Linux系列作業系統，僅能夠在一些伺服器的服務或網路設備與Windows抗衡，若是回到用戶端的部署內，Linux幾乎連邊都沾不上。但就在以Linux核心為基礎的Android系統於行動裝置市場崛起後，Windows Client未來將可能面臨Android Client的強大威脅，也就是從Mobile Device正式踏入PC的市場內，進而翻轉整個企業用戶端桌面的世界。

Android真有這項能耐嗎？這可以從技德（Jide）科技所推出的Remix OS看出一點端倪，所謂Remix OS其實由三位香港前Google工程師組成的開發團隊，以Android為基礎所發展出來的系統，而以這個系統所發行出來的行動裝置便是Remix Ultratablet和Remix Mini，其中Remix Mini這個小盒子更是銷售火熱。

Remix Mini其實就是一部迷你的Android電腦，但麻雀雖小確是五臟俱全，因為它在網路支援上內建802.11b/g/n Wi-Fi無線網路、藍牙4.0無線技術、10/100BASE-T乙太網路，影像呈現部分則提供了HDMI連接埠與1080p解析度，可以輕鬆將生活、娛樂、商務等應用通通行動帶著走，完整資訊可以參考官方網站（http://www.jide.com/mini），或是到Remix Mini的台灣官方網站（http://www.remixmini.com.tw/）來看看線上的產品展示。

或許大家會覺得幹嘛這麼麻煩，只要在Windows中安裝一個Android的模擬器，不就可以解決執行Android應用程式的需求嗎？

其實不然，因為BlueStacks這類模擬器雖然也能夠搜尋與安裝Google Play商店中的應用程式，並且在Windows桌面中建立相對的應用程式捷徑，但有許多應用程式無法正常執行，或是雖然可以執行但啟動的速度非常慢，無論如何，這一類的模擬器終究不是原生的Android系統，實在難以普及於一般消費者或商務人士。

外接USB也能有如內接SATA的效能表現嗎？USB 3.0加速類型測試比較

自USB 3.0這一個迷人(?)的連接埠開始廣泛地被運用在主機板與筆記型電腦上，已經有了一年多的時間了，主機板上所使用的USB 3.0控制晶片也琳瑯滿目，從一個埠到可以支援四個埠的晶片都有。而自從AMD A75主機板晶片原生支援USB 3.0，且Intel明年度Ivy Bridge的7系列晶片也要包含此一功能，這樣一個高速外部連接埠的普及速度也將會越來越快了。

VSFtp server

What is FTP?

FTP is an acronym for File Transfer Protocol. As the name suggests, FTP is used to transfer files between computers on a network. You can use FTP to exchange files between computer accounts, transfer files between an account and a desktop computer, or access online software archives. Keep in mind, however, that many FTP sites are heavily used and require several attempts before connecting.

An FTP address looks a lot like an HTTP or website address except it uses the prefix ftp:// instead of http://.

Ubuntu安装pycharm, No JDK found. Please validate either PYCHARM_JDK, JDK_HOME or JAVA_HOME environment variable points to valid JDK installation

buntu安装pycharm，报异常 ： No JDK found. Please validate either PYCHARM_JDK, JDK_HOME or JAVA_HOME environment variable points to valid JDK installation

Install Debian 8.0 Jessie

Install Debian 8.0 Jessie

 This is my experience in installing Debian 8.0 Jessie.

Download the ISO file from Debian official website, burn it into a CD/DVD.
Prepare a document to record the selections of the following steps, especially for passwords you will set; prepare a mouse for the touchpad won’t be usable during installation.

Setting up a minimal Debian for VM use

I’ve been just installing a Linux in a VM again (using VirtualBox, tested with 1.5.6). As a minimal system, I choose Debian (with minimal I mean that you don’t get much unused stuff, it boots fast and the disk usage is reasonable. I know that DSL or whatever would be smaller, this is just about getting a decent work system up and running quickly). Here’s a small howto:

1. Get the Debian Net-Installer from Debian.org (180 MiB)
2. Install debian, when it comes to package setup deselect “Desktop system“
3. After reboot, install (using apt-get install):
   • x-window-system-core
   • kde-core
   • kdm
   • g++
4. Reboot
5. Install the VM additions, but install the kernel headers first using: apt-get install linux-headers-`uname -r`
6. Reboot, notice that the network doesn’t seem to work any longer
7. Run dhcpd (as root)

Done. This gives you a quite small debian installation which works fine and uses really little disk space (1.10 GiB including the swap-file).

[Update] dhcpd has to be run as root in case no network connection is found.

Source: https://anteru.net/2008/04/18/225/

Using lsof: 10 Essential Commands To Troubleshoot Your Linux Server

Verified and Tested 10/30/15

Introduction

At some point in their career, everyone is going to troubleshoot an issue. And everyone has their favorite troubleshooting step to use. For a lot of system admins, the first step to do is make sure that everything is up-to-date. For others it’s only a matter of checking log files before finding your solution. For me and others here at Atlantic.Net, it’s lsof; a command line utility used to list information about files that are opened by various processes.

Mostly used for troubleshooting network connection issues, lsof is a powerful yet too-little-known application. If you’re familiar with general Linux commands, lsof is an easy tool to remember because it “lists open files”.

Install Oracle VirtualBox And Manage It Using phpVirtualBox On Ubuntu 15.04 Headless Server

We can easily install Oracle VirtualBox on any GUI Linux desktops. But, what about in a Linux Server that has no GUI? It is not that difficult. This tutorial describes how to install Oracle VirtualBox in Ubuntu 15.04 headless server. The same procedure should work on Ubuntu 14.04 LTS server and other older versions.

VirtualBox: two network interfaces (NAT and host-only ones) in a Debian guest on Ubuntu

I created a Debian VM on VirtualBox with two interfaces: a NAT one (for accessing internet) and a host-only one. However, I do not know how to make both interfaces work at the same time. If I the define the host-only as the adapter 1, I can access my VM from the host but not the internet; if I define the NAT one as adapter 1, I can access the internet but cannot reach my guest Debian.

All-In-One Redux – Proxmox & FreeNAS

Why?

After using my VMware/NexentaStor All-In-One for a while, I grew tired of VMware’s bloat & limitations. Doing “cool stuff” in VMware requires a license, & vSphere Client only runs on Windows. I got tired of starting up a Windows VM just to manage my hypervisor. That’s the only thing I started Windows up for, and it got old. I wanted something I could manage directly from my primary OS, OS X, as well as lightweight & preferably open source.

There are plenty of hypervisor products on the market today, but I wanted to move to something open source & unix based. KVM has quickly become a big presense in this market, and for a good reason: it’s awesome. It’ll run on just about any hardware you have, and has even been ported to Solaris in the form of SmartOS.