Connect NAS to your Computer Directly

My Lenovo ThinkCentre Edge 72z comes with USB 2.0. Its maximum throughput is 480Mbit/s but the effective is about 35 MB/s or 280 Mbit/s. I want to improve file transfer speed between my computer with external hard disk by replacing USB 2.0 with Gigabit Ethernet which provides higher bandwidth.

If I connect my QNAP TS-112 which has a gigabit ethernet to TL-WR842ND which supports wireless 802.11n with maximum 300MBit/s and wired fast ethernet with maximum 100Mbit/s, the bottleneck will limit the transfer speed to 100Mbit/s. There are two solutions to improve: get a faster wireless router or connect TS-112 to ThinkCentre Edge 72z directly.

Because my ThinkCentre Edge 72z connect to TL-WR842ND via wireless 802.11n, I have an empty gigabit ethernet. Therefore, I choose to connect TS-112 with gigabit ethernet directly. TS-112 may access internet through the wireless connection on ThinkCentre Edge 72z when it is working.But nobody may see it, even we share the same wireless router. Continue reading

Use TurnKey to Simplify ownCloud Installation

TurnKey is an convenient way to test new software without changing your work environment. No need to worried about the extra package or configuration might make your system becomes unstable. I like it very much!

I was looking for a Droprbox-like solution for backup small or frequently changed files. It must keep versions, auto-sync, and fast. Iomega Quick Sync is my favorite in 2001 but it’s not available in Linux and haven’t update for a long time. [Cloud] OwnCloud, a self-owned DropBox-Like Server(Chinese Version) catch my eye. Because ownCloud is available on TurnKey, I download and test it in VirtualBox. I also install the ownCloud desktop sync client in OpenSuSE 12.3 and it works great on Linux.

I am going to show you how to test TurnKey ownCloud in VirtualBox and share how I may use it in production.

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Download and Verify OpenSuSE 13.1 Image with Hash

It’s good to see OpenSuSE 13.1 is available for download on 2013/11/19. But it is difficult to download from Direct Link, too crowded. I select Pick Mirror, and it will list several mirror site for you. Choose the closest may speed up your download.

Please verified your download before you use it. Make sure it is the same as the original copy. I use SHA-256 and MD5 to double confirm. A good hash function should generate no collisions on different source. On the other hand, if it is the same content, the hash should be exactly the same.

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