fresh bash shell - nothing installed - how to install commands

fresh bash shell - nothing installed - how to install commands

I have a new server which i access thru ssh, PuTTy.
I am in Debian 3.2.46-1+deb7u1 x86_64
after login:
bash-4.2$
If i go to /bin, i have this:

these are all I have installed right? I wanted to install python with
wget http://www.python.org/download/releases/2.7.5/Python-2.7.5.tgz
it says:
then I thought of DNS error, so i tried to ping, then i got this:

Then I came to conclusion, that ping is not installed. Then I did this:
But even then, I cannot use ping. still the same error. I cannot install
anything, because I have DNS error.. kind of endless loop. what can I do
in order to get things installed? I need python and then easy_install, so
that i can install django etc.. I dont know how to configure DNS :(