Talk:Dsh

I installed dsh on my XS 0.4 test platform, following the instructions on http://www.netfort.gr.jp/~dancer/software/dsh.html.en to compile from source. I already had all the dev tools I needed except for gcc-c++, though I forget if I installed those prior. Slight issue with where make install put these libraries:

[root@schoolserver etc]# cd /usr/local/lib [root@schoolserver lib]# ls libdshconfig.a libdshconfig.so libdshconfig.so.1.0.0 libdshconfig.la libdshconfig.so.1

Dsh looks for these in /usr/lib, so I just copied them all over to /usr/lib and then dsh worked. Also, it puts dsh.conf in /usr/local/etc instead of /etc/dsh. Not a big deal, just something to remember. I had to edit remoteshell= ssh instead of rsh in dsh.conf.

Additionally, I edited /etc/ssh_config on the XS to say "StrictHostKeyChecking no" to automatically approve the XOs rsa keys.

On the XOs, I had to edit sshd_config for "PubkeyAuthentication yes" It is critical to set the permissions correctly for /home/olpc/.ssh and /home/olpc/.ssh/authorized_keys, otherwise ssh and dsh won't work.

chmod 700 ~/.ssh chmod 600 ~/.ssh/authorized_keys

Now the fun of "commanding a legion of XOs!" Here are some little things I've tried:

Get a list of the XOs by Buddy name: dsh -Mac cat /home/olpc/.sugar/default config | grep nickname

See how much free space is on the nand: dsh -Mac df -h | grep mtd0

Install an activity (this can probably be condensed into fewer commands): dsh -Mac wget <link to activity.xo file> dsh -Mac unzip activity.xo -d /home/olpc/Activities dsh -Mac rm activity.xo