nslookup replacement
Here’s how to look up an IP address when you don’t have nslookup but you have Python:
python -c "import socket; print(socket.gethostbyname('google-public-dns-a.google.com'))"
Of course, this all goes on one line; I think that when you copy the code above it will have no line breaks.
Here’s how to look up a host name:
python -c "import socket; print(socket.gethostbyaddr('8.8.8.8')[0])"
In this case, gethostbyaddr returns a tuple so [0] is needed to get the first member of the tuple.
netstat replacement
Unfortunately, a replacement for netstat is not as concise in python – 241 lines at
https://github.com/da667/netstat. But if you have wget or curl and an Internet connection you can do something like this:
python -c "$( wget -O - https://raw.githubusercontent.com/da667/netstat/master/netstat.py )"
tinyurl.com to the rescue:
python -c "$( wget -O - https://tinyurl.com/netstat-py )"
updates
2018.05.01 – updated for python3 syntax