Getting curl: (6) Could not resolve host: localhost

Question

Getting curl: (6) Could not resolve host: localhost

I'm facing an issue when calling a localhost url through curl. I did check this question but it didn't help me.

My curl command:

curl --data "ip=127.0.0.1&device_type=web" http://localhost/api/users/getToken.json

Also tried the solution in this selected answer : https://stackoverflow.com/a/40078901/1225070

curl -H "Content-Type: application/json" --data "ip=127.0.0.1&device_type=web" http://localhost/api/users/getToken.json

However, the above command is working if I run it using the IP address

curl --data "ip=127.0.0.1&device_type=web" http://192.168.1.1/api/users/getToken.json

Any help why this is not working when using localhost?

Answer 1

I was getting the same error and figured out my /etc/hosts didn't have the localhost mapping it was supposed to have.

If you run cat /etc/hosts and if it doesn't show you a line with the following content, then you have the same problem I had:

127.0.0.1 localhost

To fix this just add a line like the previous one to your /etc/hosts file. You can also to this by running:

sudo echo "127.0.0.1 localhost" >> /etc/hosts