Question

port 22: Connection timed out

Posted August 24, 2015 76.7k views
CentOS Configuration Management

Today， I have established a droplet succesfully.
The information:
162.243.159.46
512MB Ram
20GB SSD Disk
San Francisco 1
CentOS 6.7 x64

Gateway: 162.243.152.1

However, when I try
ssh root@162.243.159.46
The error occurred: ssh: connect to host 162.243.159.46 port 22: Connection timed out

Also, when I try
ping 162.243.159.46
It failed to connect to the server

But, I can connect to the gateway.
ping 162.243.152.1
is successful.

How can I solve this problem.

Thanks very much.

Best wishes

Zaixu

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1 comment
  • jviyer April 10, 2017
    Reply Report

    I have the same issue from a windows 10 computer. since it is a corporate computer, even though
    I am able to access websites and all, I am wondering if it is an issue with the windows side where something is disabled.. or is it something on the droplet side which I can tweak or tinker to be able to access console (as well as through cygqin ssh)
    any ideas appreciated
    thanks
    jviyer

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8 answers
dhaneshkhot September 13, 2017

Not sure if anyone needs anymore discussion on this, but I faced the same problem and got a lead from this post to fix.
Yes, I think port was blocked. When I did sudo ufw allow 22 from console and tried to connect, I was able to connect

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darrendupreez June 1, 2018

Awesome SO I HAVE SOLVED THIS.

Login to your digital ocean account and go to launch console under access in your droplet.
then type in your username and then your password.

Once you are logged in type $ sudo ufw allow 22

Try again in your terminal and it will work. :)

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dennislee October 6, 2018

thanks a lot for : run $sudo ufw allow 22

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JustSomeTech August 24, 2015

You can check if your ssh service is running on your droplet by going to the Console Access
Also check your ssh config if you are allowed to login as root, and if you made a ssh key at the creating, you need to use that. For more information check here

How To Use SSH to Connect to a Remote Server in Ubuntu
by Justin Ellingwood
SSH is an important tool used for administering remote Linux and Unix-like computers. In this guide, we will discuss the basic usage of this utility and how to configure your SSH environment.
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  • Zaixu August 26, 2015

    I think it is not the problem of ssh, since I cannot ping 162.243.159.46 successfully.
    Also, when I go to console access, the black screen does not appear.
    I was so confused.

    Reply Report
  • Zaixu August 26, 2015

    Dear,

    I have entered the console access, and input the command ‘ps -ef | grep sshd’.
    The output is root 945 .... /user/sbin/sshd
    So, the ssh service is running on my droplet.

    I can login as root, and I haven’t made a ssh key.

    In fact, I have successfully ssh to the server for three times, but the connection is failed soon.

    Can you give me some help.

    Best wishes

    Zaixu

    Reply Report
MrPeppah August 25, 2015

Is this a fresh droplet or one you’ve connect to before?

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  • Zaixu August 26, 2015

    Dear,

    Yeah, it’s a fresh droplet set up two day ago.

    In fact, I have successfully ssh to the server for three times, but the connection failed soon.

    And now, I cannot connect to it any more.

    I have tried power off the server and then power on, or reboot the server through console access, but I still cannot connect to the server.

    Can you give me some help.

    Best wishes

    Zaixu

    Reply Report
JustSomeTech August 26, 2015

Did you install any software? Check if you got a firewall running like ufw, iptables,Gufw etc.
Maybe the port is blocked, also check your pc if it is allowing outgoing ssh connections (port 22)

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  • Zaixu August 27, 2015

    I have destroyed the droplet and then rebuild it.
    This time, I use New York 3 rather than San Francisco.
    Everything is OK now, although I don’t why the problem is fixed.

    Thanks very much.
    You are so nice.

    Wishes you all the best.

    Zaixu

    Reply Report
MrPeppah August 26, 2015

I have a few questions.

What operating system is your server?
Are you able to log in via web console with DigitalOcean?
Did you make any firewall rules - If so you may have blocked 22.

You can always try stopping the firewall service to see if that allows connection via SSH. If so you know you’ll have to add a rule.

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  • Zaixu August 27, 2015

    I have destroyed the droplet and then rebuild it.
    This time, I use New York 3 rather than San Francisco.
    Everything is OK now, although I don’t why the problem is fixed.

    Thanks very much.
    You are so nice.

    Wishes you all the best.

    Zaixu

    Reply Report
  • MrPeppah August 27, 2015

    I think you had a firewall rule blocking it. The new droplet wouldnt have them.

    Reply Report
midrian September 29, 2017

The problem is MTU related
try setting your client’s network card mtu smaller for example

ifconfig enp10s0 mtu 1000
(linux)

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