connect to host localhost port 22: Connection refused

Question

While installing hadoop in my local machine , i got following error

ssh -vvv localhost 
OpenSSH_5.5p1, OpenSSL 1.0.0e-fips 6 Sep 2011 
debug1: Reading configura         


        

Answer 1

For Linux:

1. Remove SSH with the following command:

   sudo apt-get remove openssh-client openssh-server
   

2. Install SSH again with:

   sudo apt-get install openssh-client openssh-server