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 configuration data  etc ssh ssh config     debug1  Applying options for    debug2  ssh connect  needpriv 0  debug1  Connecting to localhost  127 0 0 1  port 22   debug1  connect to address 127 0 0 1 port 22  Connection refused  ssh  connect to host localhost port 22  Connection refused   can some one help me to resolve this error   than changing port number

User · Answer

If you restart service then it will work     service sshd restart   then check     ssh localhost   It will work

User · Answer

Try installing whole SSH package pack   sudo apt-get install ssh   I had ssh command on my Ubuntu but got the error as you have  After full installation all was resolved

User · Answer

Check if this port is open  Maybe your SSH demon is not running  See if sshd is running  If not  then start it

User · Answer

A way to do is to go to terminal    sudo gedit  etc hosts     enter your ip address ipaddress of your pc  localhost      ipaddress of your pc  localhost Edit your pc name with localhost       and again restart your ssh service using     service ssh restart   Problem will be resolve  Thanks

User · Answer

For Linux    Remove SSH with the following command   sudo apt-get remove openssh-client openssh-server  Install SSH again with   sudo apt-get install openssh-client openssh-server

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For what its worth I got the following error trying to ssh into my local machine  running Ubuntu 16 04 Xenial  from a vm    ssh  connect to host 192 168 144 18 port 22  Connection refused   It got immediately fixed with   sudo apt-get install ssh   Take note  Before fix   which sshd  returned nothing and  which ssh  returned   usr bin ssh   And After the fix   which sshd  returned   usr sbin sshd

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If you re certain that you have installed ssh  then it s possible that ssh and or sshd has been terminated or the server service hasn t been started  To check whether these processes are running use     this tells you whether your ssh instance is active inactive sudo service ssh status   OR    this list all running processes whose names contain the string  ssh  sudo ps -A   grep ssh   It s likely that ssh would be active and running but sshd would not  To enable them   sudo service ssh start   NB  - some systems have a restart option but mine didn t

User · Answer

It might be caused by some of the following    SSH Server is not installed  only SSH Client   try  apt-get install ssh openssh-client openssh-server Connection is blocked by iptables  Firewall   try  ufw allow ssh

User · Answer

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

User · Answer

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

User · Answer

For my case ubuntu 14 04  fresh installed   I just run the following command and it works   sudo apt-get install ssh

User · Answer

Remove SSH with the following command   sudo apt-get remove openssh-client openssh-server  Install SSH again with   sudo apt-get install openssh-client openssh-server    It will solve your problem

User · Answer

My port number is different  i tried using  ssh localhost -p 8088   this worked for me

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You may should edit your  etc hosts   For example if my hostname is ub0  but the hostname in  etc hosts is localhost  it may occur   connect to host ub0 port 22  Connection refused   Because the hostname in  etc hosts is localhost not ub0   So  you should be careful the hostname when building up distributed clusters

User · Answer

Do you have sshd installed  You can verify that with   which ssh which sshd   For detailed information you can visit this link

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Actually i solved this  I just installed shh daemon   in terminal       sudo apt-get install openssh-server

User · Answer

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

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Before installing reinstalling anything check the status of sshd        sudo systemctl status sshd   You should see something like          sshd service - OpenSSH server daemon    Loaded  loaded   usr lib systemd system sshd service  disabled  vendor prese gt     Active  inactive  dead       Docs  man sshd 8             man sshd config 5    Just enable and start sshd  sudo systemctl enable sshd sudo systemctl start sshd

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I used   sudo service ssh start   Then   ssh localhost

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If you still face problems  try the following   sudo ufw enable     sudo apt-get install openssh-server   This might work too

User · Answer

I use a Mac  this worked for me   Open System Preferences  then search for  sharing     Choose Remote Login  make sure it is on and remember to add required users   Got it from here

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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

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On mac go to system settings- network- sharing and allow remote login   try ssh localhost  You should be good

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Check file  etc ssh sshd config for Port number  Make sure it is 22

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if you are able to ping and not able to ssh  then it is a firewall  The firewall on 18 4  not sure about other versions  in on by default and only allow port 8080   Here how you fix it  https   linuxconfig org how-to-enable-disable-firewall-on-ubuntu-18-04-bionic-beaver-linux

User · Answer

try sudo vi  etc ssh sshd config  in first few lies you ll find   Package generated configuration file  See the sshd config 5  manpage for details  What ports  IPs and protocols we listen for  Port xxxxx  change Port xxxxx to  Port 22  and exit vi by saving changes   restart ssh sudo service ssh restart

User · Answer

What worked for me is   sudo mkdir  var run sshd sudo apt-get install --reinstall openssh-server   I tried all the above mentioned solutions but somehow this directory  var run sshd was still missing for me  I have Ubuntu 16 04 4 LTS  Hope my answer helps if someone has the same issue   ubuntu sshxenial

User · Answer

If install Hadoop on Mac OSX  make sure turn on Remote Login under System Preferences then File Sharing  This worked on my machine

[linux] connect to host localhost port 22: Connection refused

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