How to connect to SSH EC2 Amazon even if port 22 is already set up - amazon-web-services

Im getting Timeout error on ssh connection to EC2 even after set port 22 to anywhere, i see my user and is ec2-user indeed but im getting timeout everytime
Im already tried reboot the instance and change to other security group, even try Termius software (im on MAC) instead command line but notheing...

First of all, check you VPC and subnets inside this VPC in which you have created your instance. The subnet will have a route table, verify that subnet is attached to an Internet Gateway with Destination 0.0.0.0/0, otherwise add one by referring this link. Post this step, check that your security group has an Ingress Rule for port 22 from your ip(select my ip from drop down). You will not get Connection timeout error if these two steps are configured properly.

Related

how can i launch an EMR Cluster using putty

Have created an Elastic Map reduce Cluster and made a note of the host name and generated a key . When i tried to login i am getting a timeout error .Please help me to log in
make sure the master node's security group allow SSH using port 22 by allowing inbound connection for that port

AWS EC2 Server Connection from Windows Network Error: Connection timeout error

I have created new EC2 instance set HTTP, HTTPS, SSH anywahere, get Pair, pem file, and tried to connect from window machine using putty.
Putty giving error:
Network Error: Network Error: Connection timeout error
I have tried same procedure from same laptop, same network, same firewall on different AWS account working fine.
Please help me to resolve this issue.
In security gruop I allowed SSH TCP 22 in inbound rule.
To troubleshoot the connection, see: Error connecting to your instance: Connection timed out
Overview:
Check security groups
Check route table
Check Network ACL
Check corporate network
Check CPU load
A timeout error normally indicates that your computer is unable to reach the target computer (as opposed to the target computer rejecting the connection).
Things to check:
The EC2 instance should be running Linux
The security group on the instance should be permitting inbound access on port 22 either from your IP address, or all IP addresses- The EC2 instance should be in a public subnet (defined as a subnet with a routing table entry pointing to an Internet Gateway)
The Network Access Control Lists (ACLs) are preferably unchanged
Your (corporate) network permits SSH access to the AWS network range
Given that you are able to connect to "a different AWS Account", it sounds like your laptop and local network configurations are find. It would have something to do with the instance, security group or VPC configuration.
Have you tried allowing connections on port 22?
Go to your EC2 Instance and click on it so the radio button turns
blue. Scroll down to the bottom and check for Security Groups.
Click on View Inbound Rules and see if Port 22 is enabled. If not
click on the link directly above View Inbound Rules. Screenshot below:
You will see the tabs as shown in the screenshot below:
Click on Edit then Add Rule Button.
Enter the values as shown in the screenshot below:
Click on Save then try connecting to your instance again.
If that does not work, once you go to your EC2 instance, there is a Connect button. Click on that and see a list of possible warnings why you might be unable to connect to your instance.
Check your security group rules. You need a security group rule that allows inbound traffic from your public IPv4 address on the proper port.
Open the Amazon EC2 console at https://console.aws.amazon.com/ec2/.
In the navigation pane, choose Instances, and then select your instance.
In the Description tab at the bottom of the console page, next to Security groups, select view inbound rules to display the list of rules that are in effect for the selected instance.
For Linux instances: When you select view inbound rules, a window will appear that displays the port(s) to which traffic is allowed. Verify that there is a rule that allows traffic from your computer to port 22 (SSH).
For Windows instances: When you select view inbound rules, a window will appear that displays the port(s) to which traffic is allowed. Verify that there is a rule that allows traffic from your computer to port 3389 (RDP).

EC2 is not responding for ssh connection

Another bad day. I have all the configuration for my ec2 instance.
Till yesterday I was able to connect it via ssh on mac. but know why it's not getting connect now.
Configuration is as below:
Security Group:-
I'm using below steps as usual and I'm same directory where mypleaks-inst.pem kept.
My guess: Your security group that was applied was "launch-wizard-2" which by default sets exlusion rules. You need to associate that EC2 instance with one of the two security groups listed in your second screen shot to allow TCP connections on port 22 from inbound ip range. OR you could modify launch-wizard-2 to incorporate the relevant rules to allow for ssh connection.
if you're sure nothing was changed on AWS side then perhaps your SSH service is down temporarily or permanently (the server was overloaded? You can do it with ease with T2.small).
Check NACL and routing, otherwise.

Cannot connect to EC2 - ssh: connect to host port 22: Connection refused

I am currently overseas and I am trying to connect to my EC2 instance through ssh but I am getting the error ssh: connect to host ec2-34-207-64-42.compute-1.amazonaws.com port 22: Connection refused
I turned on my vpn to New York but still nothing changes. What reasons could there be for not being able to connect to this instance?
The instance is still running and serving the website but I am not able to connect through ssh. Is this a problem with the wifi where I am staying or with the instance itself?
My debugging steps to EC2 connection time out
Double check the security group access for port 22
Make sure you have your current IP on there and update to be sure it hasn't changed
Make sure the key pair you're attempting to use corresponds to the one attached to your EC2
Make sure your key pair on your local machine is chmod'ed correctly. I believe it's chmod 600 keypair.pem check this
Make sure you're in either your .ssh folder on your host OR correctly referencing it: HOME/.ssh/key.pem
Last weird totally wishy washy checks:
reboot instance
assign elastic IP and access that
switch from using the IP to Public DNS
add a : at the end of user#ip:
Totally mystical debugging sets for 6 though. That's part of the "my code doesn't work - don't know why. My code does work - don't know why." Category
Note:
If you access your EC2 while you are connected to a VPN, do know that your IP changes! So enable incoming traffic from your VPN's IP on your EC2 security group.
In AWS, navigate to Services > EC2.
Under Resources, select Running Instances.
Highlight your instance and click Connect.
In Terminal, cd into the directory containing your key and copy the command in step 3 under "To access your instance."
In Terminal, run: ssh -vvv -i [MyEC2Key].pem ec2-user#xx.xx.xx.xx(xx.xx.xx.xx = your EC2 Public IP) OR run the command in the example under step 4.
Just check if your public ip that you get when you are on VPN is configured as a source address in the SG inbound entry that opens up port 22.
You can check your ip using https://www.google.co.in/search?q=whats+my+ip, when connected to your VPN.
I tried everything in this and several other answers, also in some aws youtube videos. Lost perhaps five hours over a few sessions trying to solve it and now finally..
I was getting the exact same error message as the OP. I even rented another EC2 instance in a nearer data centre for twenty minutes to see if that was it.
Then I thought it might be the router or internet provider in the guest house where I am staying. Had already noticed that some non-mainstream news sites had been blocked - and that was it!
You can check if the router is blocking port 22:
https://superuser.com/questions/1336054/how-to-detect-if-a-network-is-blocking-outgoing-ports
cardamom#neptune $ time nmap -p 22 portquiz.net
Starting Nmap 7.70 ( https://nmap.org ) at 2021-02-03 20:43 CET
Nmap scan report for portquiz.net (27.39.379.385)
Host is up (0.028s latency).
rDNS record for 27.39.379.385: ec2-27-39-379-385.eu-west-3.compute.amazonaws.com
PORT STATE SERVICE
22/tcp closed ssh
Nmap done: 1 IP address (1 host up) scanned in 0.19 seconds
real 0m0,212s
user 0m0,034s
sys 0m0,017s
Then, the question of why someone would want to block the ssh port 22 is addressed in at length here:
https://serverfault.com/questions/25545/why-block-port-22-outbound
Had the same problem after creating some instances on a new VPC. (If internet SSH worked before this solution may not work for you)
When creating a new VPC, make sure you create an internet gateway (VPC -> Internet Gateways)
And also make sure that your VPC's routing table (VPC -> Route Tables) has an entry which redirects all IPs (or just your IP) to the internet gateway you just created.
For me, it was because of this:
NOT ec2-user#xx.xx.xx.xx
BUT THIS =>>> ubuntu#xx.xx.xx.xx
Watch the image of EC2 instance!
Instead of
ssh -i "key.pem" ubuntu#ec2-161-smth.com
use
ssh -i "key.pem" ec2-user#ec2-161-smth.com

SSH into EC2 Spot Instance

It's my first time using an ec2 instance from the spot market. I'm assuming its the same to SSH into as with any normal instance. I submitted a request and got one back but now for some reason when I try to SSH into with the public IP I'm getting a timed out error. Is there anything else I need to do after submitting the Spot request, other than waiting for someone to fill it?
As many other users have commented, there are two things need to be done for ssh
assign an aws key-pair when launching the instance
assign a security group with ssh permission
To check whether these two conditions are met for your instance, you can go to the aws EC2 Management console, click on your instance at the instance tab, and check if there is a Key pair name associated with it, and whether the Security groups inbound rule contains port 22 tcp protocol.
If you launch with boto3, the command will look like this
rc = ec2.create_instances(ImageId=ubuntu_64bit,
InstanceType='t2.nano',
MinCount=1,
MaxCount=n_workers,
KeyName='my-key',
)
Here I used the default security group and I have added ssh permission to it.
When these conditions are met, you can log on to the instance using
ssh -i /path/my-key-pair.pem ec2-user#ec2-198-51-100-1.compute-1.amazonaws.com
Depending on the image you load, the user name could vary. Possible ones include ec2-user, centos, ubuntu, root.
Timeout error for ssh means port 22 on this spot instance isn't open to you. Check the security group and add your location IP, allowing access to port 22