Synology Security Issue and How-to Harden your NAS

It’s quit busy in Synology forum about a coin miner started on 2014/2/8 by Joakim Lotsengard on Synology Page in Facebook. Someone use CVE-2013-6955 and CVE-2013-6987 to insert a coin miner program running in the background. It takes all CPU resource and slow down your access to NAS.

You may see the the press from Synology if you want to learn more about this issue. Please follow the instruction to remove the unwanted program by reinstall DSM and update manually.

UPDATE @ 2014/8/6SynoLocker use the same vulnerability to encrypt files and ask for money. Y-Combinator has a threaded discussion. You need to upgrade your DSM manually. It is not found by auto-update. Please refer to Downgrade Synology DSM for detail instructions.

I am going to show you how to check yourself and harden your NAS covering Asustor ADM, QNAP QTS, Synology DSM and ThecusOS 6.

UPDATE @ 2015/4/1 – Add security on ThecusOS 6.

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Performance Comparison on Backup Linux Files to QNAP TS-212P

I invest a new QNAP TS-212P which has RAID 1 support, a faster Marvell 88F6282 at 1.6GHz, and more RAM (512MB) compare to my QNAP TS-112 with Marvell 88F6281 at 1.2GHz and 256MB RAM. I bought two Seagate SV-35 2TB for it.

But things doesn’t goes as I expect, it fails to backup some of my files. I never have the same problem on Buffalo HD-LX2TU3 with ext4.

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Reset your Lenovo Computer with Windows 8

If you have try Recover Lenovo One Key Rescue after Resizing Partitions and may boot to OneKey Recovery, you shall be able to boot to OneKey Recovery to reinstall to factory default.

But as Steve mentioned in Super User: Lenovo One-Key Recovery Feature broken after resizing partition, you may also follow the [Remove everything and reinstall Windows] in How to refresh, reset, or restore your PC. It’s not free, you need to have a Windows RE Flash Drive and have access to PBR_DRV partition.

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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