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

Make sure that /etc/hosts.allow contains:

ssh:ALL:allow
sshd:ALL:allow

OR

ssh:localhost:allow
sshd:localhost:allow

OR - some other variant

ssh:{host1,host2,host3...}:allow
sshd{host1,host2,host3...}:allow

INSURE that the first line in the file DOES NOT begin with ALL:ALL:DENY

NOTHING will be able to communicate with the host... on any port.

Answer 2

I did all the suggestion above and it did not work. Then I restart the ssh service and it works. This is what I do:

service ssh restart

Then I redo

ssh localhost

Now I can connect to my localhost. Hope it helps

Answer 3

Do you have sshd installed? You can verify that with:

which ssh
which sshd

For detailed information you can visit this link.

Answer 4

you need to check the configuration in sshd_config ListenAddress 0.0.0.0 update this and restart the sshd service that will resolve the issue.

Answer 5

if you are using centOS or Red Hat, you should first update SElinux. Execute the following statement

ausearch -c 'sshd' --raw | audit2allow -M my-sshd

then you need to execute

semodule -i my-sshd.pp

good luck

Answer 6

On mac go to system settings->network->sharing and allow remote login.

try ssh localhost

You should be good.