Connecting to a ReadyNAS duo using SSH

By Stephane Carrez 4 comments

Having acquired a ReadyNAS duo for my new backup system, I wanted to explore the system that runs on it and see if I could run more services on it. There is nothing terrific in this article as many people have already done

Before you start, you must be aware that there is a risk that you break your ReadyNAS. You should not do this unless you really understand what it is doing.

Installing the EnableRootSSH extension

The first step is to install the addon which allows you to connect to your ReadyNAS using ssh:

  1. Download the EnableRootSSH extension. I've used the following link:

  1. Go in the ReadyNAS FrontView with your browser and go to System -> Update -> Local Update
  2. Upload the EnableRootSSH binary file. The ReadyNAS verifies that content and if it is correct it displays a description of the addon.
  3. Acknowledge the installation of the addon

After installation, the ReadyNAS must be restarted. Shortly after, you will receive an email:

Subject: Addon Package Progress (nas-XX-XX-XX)
Successfully enabled root SSH access.  The root password is now the same as your admin password.

Connecting to the ReadyNAS using ssh

With the EnableRootSSH extension in place, you can easily connect using ssh. The RSA key fingerprint of your ReadyNAS is prompted and you must accept it in your known_hosts.

$ ssh -l root pollux
The authenticity of host 'pollux (' can't be established.
RSA key fingerprint is 01:c8:00:b4:56:5a:f9:fe:2d:73:9a:b0:55:a1:31:2f.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'pollux,' (RSA) to the list of known hosts.
root@pollux's password:
Linux nas-D2-24-F2 #1 Fri Sep 19 15:04:06 PDT 2008 padre unknown

Exploring the ReadyNAS

Since the ReadyNAS runs a Debian Sarge with a GNU/Linux 2.6.17 kernel, you can easily explore the system.

CPU and Memory

The CPU is a Sparc-V8 (LEON) that Infrant has optimized for their needs. It integrates hardware RAID, the gigabit Ethernet and 4 SATA channels, a 64-bit DDR SRAM controller, a DMA, a 3 DES engine and a PCI/USB interface.

nas-D2-24-F2:~# cat /proc/cpuinfo
cpu             : Infrant Technologics, Inc. - neon version: 0
fpu             : Softfpu
ncpus probed    : 1
ncpus active    : 1
BogoMips        : 186.36
MMU             : version: 0
LP              : HW.FW version: 0.1
FPGA            : fpga000000-0 Configuration: 0
AHB arbitraion  : 7
CPU id          : 0
Switch          : 0
ASIC            : IT3107

And the memory:

nas-D2-24-F2:~# cat /proc/meminfo
MemTotal:       226384 kB
MemFree:        146560 kB
Buffers:         15440 kB
Cached:          42352 kB
SwapCached:          0 kB
Active:          61776 kB
Inactive:        22944 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:       226384 kB
LowFree:        146560 kB
SwapTotal:      255968 kB
SwapFree:       255968 kB
Dirty:               0 kB
Writeback:           0 kB
Mapped:          39712 kB
Slab:             5488 kB
CommitLimit:    391792 kB
Committed_AS:    72048 kB
PageTables:          0 kB
VmallocTotal:   131008 kB
VmallocUsed:      1120 kB
VmallocChunk:   129408 kB


The system is installed on the hard disk. It appears to use arround 1.9G from my 1Tb disk.

nas-D2-24-F2:/usr# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/hdc1             1.9G  224M  1.7G  12% /
tmpfs                  16k     0   16k   0% /USB
/dev/c/c              925G  543M  924G   1% /c

Other interesting commands:

The following commands are interesting to explore the system and learn more about it:

dpkg -l         List of installed packages
netstat -ln   Network open ports (TCP/UDP/Unix)
top              Top running processes
ps aux         List all running processes

Next step

The next step for me is to see if I can install the Bacula Storage Daemon and see if my bacula server is able to connect to it directly.

Add a comment

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TimB on 2010-11-11 21:56:41 said:

Thank you sooo much for writing a clear method of setting up ssh and being able to connect to change the things that the interface doesn't allow you to.
I wanted to have a FTP user connect to their own home account - impossible using the std interface.

Thank you so much

Hsc on 2010-09-18 20:01:15 said:

I lost access to a share called "VIDEO" on my NV+ : can see it but access from file explorer (Windows) or FTP is denied ; tried FTP chmod to 777 but refused (error 550)...
Please is there any way to restore proper access through SSH to this share ?
Thank you
Sandor Haden on 2010-06-27 18:07:21 said:

Dear Stephan,

I have installed clamav (0.84-2.sarge.17) on my Netgear ReadyNAS NV+ using
apt-get update
apt-get install clamav

In my sources.list there are the follwings:
deb readynas/
deb sarge main contrib non-free
deb-src sarge main contrib non-free

When I try to run calmscan or freshclam I get the followings:
LibClamAV Warning:************************************************
LibClamAV Warning:*This version of the ClamAV engine is outdated.*
LibClamAV Warning:*DON'T PANIC!Read*
LibClamAV Warning:************************************************
LibClamAV Warning: Signature for Trojan.Small-3108 requires new ClamAV version. Please update!
LibClamAV Warning: Signature for W32.Cervan requires new ClamAV version. Please update!
LibClamAV Warning: Signature for Trojan.Small-3169 requires new ClamAV version. Please update!
LibClamAV Warning: Signature for Trojan.Small-3171 requires new ClamAV version. Please update!

... etc.

When I rewrite the source.list as follows:
deb readynas/
deb lenny main contrib non-free
deb-src lenny main contrib non-free

... and try to install ClamAV again, it doesn't succeed of course because ReadyNAS runs an older Debian Sarge GNU/Linux.

Could you help me please how to install an up-to-date ClamAV engine on my ReadyNAS?

Thanks in advance,

Jon on 2009-09-25 11:29:08 said:

Thanks for sharing. Do you know how to restart proftpd through ssh (the right way)?

Also can you successfully restart the NAS DUO via ssh?