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Is it possible to put android-driven tablets in a local network? Router Zyxel (which requires MAC address), several gnu linux servers connected. Obviously my aim is to have the tablet ssh connectable to local and external machines, with scp file transfer (which should be very fast within the local network). I don't even know if android supports a form of ssh protocol. If all that is feasible, I am interest in the cheapest hardware, even if obsolete for tablet fans. No interest in telephone communications. No interest in photography, as far as this is concerned. Thanks for advice. chiendarret
If I got the question right. I use Solid explorer for file transfer (sftp and samba are supported), sshdroid as an sftp server on the tablet, connectbot as an ssh client. Don't know about scp. I thought sFTP was scp-compatible.
Both on the local network and for connection to computational centers, the tablet needs public keys, generated from ssh. Even on local network, without password-less connection it would become time consuming. Therefore, if public keys are not generated by what you kindly suggested, then it seems to me that installing a minimal linux on the tablet is a valid alternative.
To this end, I figured out to buy a cheap tablet, become root on that, and install a ARM devised minimal linux on that. That would also allow to install linux-compatible editors. Linux for my servers is Debian amd64 but Linux Mint offers debain-compatible editions (which ubuntu does not, and I don't like to be involved in the the ubuntu mass, actually I placed it on spam).
As to the tablet, software " DooMLoRD_v1_Xperia-2011-ICS-ROOT-emu-busybox-su.rar " is said to be capable to give root access to A13 tablets, which are offered for little, including a comfortable physical US keyboard. Warranty is voided, but the low price justifies the risk. Although that is single cpu, that is enough for searching and downloading scientific literature, transfer it to my servers, or submitting queued job to the mainframe. Such tablets are also offered with much internal mem (16GB, which allows installing linux) at the expense of litthe RAM, but 512MB should be enough for the particular tasks I descrided. I don't need several instances of google windows.
Connectbot can generate and use public keys actually.
The problem with regular linux on tablets is that Linux distros aren't optimized for touch interface. They would be hard to be used without a mouse and a keyboard. If you have to use those why do you need a tablet at all.
Your point is quite correct. I want to give it a trial: my plan is to install (on the tablet equipped with a keyboard) a minimal linux with ssh, text editor, and browser. As to the mouse, either one of the two usb ports will work, or I'll try otherwise without a mouse. Any suggestion to this concern? Could perhaps Android be used for "navigation" and Linux for passwordless ssh?
Should that not work, the tablet will be passed to my girl, and the keyboard discarded. I could recover a dismissed Atlon computer for internet and ssh. Notebooks and laptops in my country are sold with local keyboard, which makes problems for programming, while clips above the keys proved also a trouble. Buying from abroad raises guarantee problems.
What I am trying to have is a continuous, inexpensive access to my three wheezy servers and to the supercomputer center. The servers operate with multiple GTX-680 cards and the X server cannot be launched, to prevent all RAM being rapidly exhausted, which is what occurs with statistical mechanics codes.
ConnectBot is an open source Secure Shell client for the Android operating system. It lets users securely log in remotely to servers that run a secure shell daemon. This allows the user to enter commands from their android device and have the commands run on the remote server instead of the local android device. It uses the standard encryption used by SSH2 to keep any commands and data that are transmitted from being eavesdropped by any potential listeners across the network.
Some of its features are
It supports login with a username and password to any arbitrary server on the local network or internet
Supports connections based on a public/private keypair instead of username/password for increased security
is just what I want. This closes the matter. No need of installing linux on the tablet as surely there is a text editor on android compatible with text editors on linux (I mean pure editors like vim or nano which do not introduce incompatible characters)
Text editors are fine on Android. The only problem is that tablets are designed to consume content and not to create it. In other words it's a pain to type a lot of text in a tablet. At least for me. If you don't need a device that is independent from an electric socket you can use Raspberry Pi and the like hardware. Still it needs a monitor and a keyboard with a mouse.
Actually, I do not plan to use much text writing, unless an additional keyboard can work. Such keyboards are sold for little.
One important question that I forgot is whether free google tools, most importantly "connectBot" (which you suggested, and, from what I read, I understand as an emulator of ssh, allowing to create public keys), can be installed on cheap A13 Cortex tablets, which, I suppose, have no Google Market, i.e., did not pay rights to google. Without being able to ssh connection with linux machines, both on my local network and on mainframes, the tablet can not be useful for me, and people like me.
Fundamentally, what I am looking for is a continuous connection (on a movable device) to internet to check mail and so on at low cost. Once a tablet connects regularly to Linux machines via passwordless ssh (thus allowing passwordless file transfer via scp, which is a tool of ssh), than a tablet can be useful in the scientific lab.
Acutually I ordered one such cheap tablet (A13 single core, 500MB ram, physical keyboard) but the vendor had not what he offered on ebay so that I got the money back. Now I am waiting for your further kind advice before ordering a tablet.