Using amazon ec2 service get the error This site can’t be reached.
unexpectedly closed the connection. Try: Checking the connection
Checking the proxy and the firewall Running Windows Network
Diagnostics
HTTPS TCP connection uses port 443. Ensure you have opened this port (443) for the security group associated with your ec2 instance
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I have an ECS instance running in alibaba. My ECS is in a VPC that has a SSL server. I have downloaded the SSL client certificate which allows me to connect to openVPN and to ping the ECS instance from my local box while connected to openVPN.
However, when I login to the ECS instance, I am unable to ping back my local box. My security group is a basic one which allows all connections. I didn't touch the outbound connection.
Here are the details of my SSL Server, and successful ping screenshot (My ECS Primary Private IP Address is 192.168.0.201)
Here is a screenshot of my unsuccessful attempt to ping my local home IP address (The IP, 192.168.10.190，in the screenshot below is an arbitrary one for illustration purpose) from the ECS instance.
When you connect to VPN, you're assigned a private client IP of 192.168.2.0/24 as per your SSL VPN settings. This is the network that will be used for your VPN connection. From your screenshot I see that you're pinging to your local 192.168.10.190. Your cloud server does not have access to this network.
You can try pinging to your client 192.168.2.0/24 IP from your ECS. You probably will need to a the route to your VPC > Route Tables. I haven't tried connecting cloud server via SSL VPN myself, but I've used IPSec for two-way site-to-site connection, which is more suitable for this situation.
I am running a webserver on an Ubuntu ec2 instance. The service accepts http connections over port 8080.
The next step is to allow the service to be e accessible using public_DNS:8080. I've modified the security group to accept all incoming traffic on 8080. However, I get connection refused when I try it on my browser. I am guessing it is something to do with the Ubuntu firewall.
I have very little idea about it. Any suggestions on how I can proceed to resolve this?
I am trying to configure OpenVPN to my Amazon EC2 Ubuntu instance. I have opened up both TCP and UDP ports on both the load balancer and the VPC instance. I can connect if I open my putty session to the server and set a SSH tunnel on port 1194, and then connect OpenVPN on localhost 1194, but I am trying to figure out how to set my DNS entry so that I can just connect through the VPN using UDP without setting a SSH tunnel. Any advice? I have tried so many combinations and read everything I can find...
Ok, I finally worked it out. The cname has to match the actual address of the vpc directly, it cannot go through the load balancer and the aname matches the IP of the OpenVPN.
I have hosted web application (developed in PHP) on Amazon EC2 micro instance. As per default setting, i can access 80, 22, 443 and 3306 ports from remote locations means from Home(terminal window) using telnet command.
I want to open another custom TCP port XXXXX. I have added that port in Security Group. when i am trying to connect that port through telnet command it is always show "Connection refused".
I have been trying to solve this issue for 3 days but could not get successful solution.
Help would be really appreciated.
Thanks
Adding a port in security group (inbound) ensures that the port can be accessed from outside. Please check following
Is the port open for anywhere (0.0.0.0/0) or for a custom IP. If for custom IP, please check the IP of your machine (search 'what is my ip' on google).
Is there any application listening on the port on EC2 machine.
I am new to MQTT and have been trying to implement MQTT MOquette on AWS EC2, i tried the configuration and installation of broker on my machine and was able to connect and test it from client, however when i do the same from Aws EC2 instance i can see the ports 1883, 8080 listening to 0.0.0.0 ip address but when i connect from client i am not able to connect.
While configuring host in local machine i provided 0.0.0.0 for host and ports 1883, 8080 and on AWS server i provided the private ip for host and ports are 1883, 8080. I have added rules in security groups to allow tcp on 1883 & 8080.
My question is what should be the host value i should use on AWS like private ip or aws url like 'ec2-XX-XX-XXX-XX.us-west-2.compute.amazonaws.com' and what would be the url from which i could access broker from client like 'tcp://ec2-XX-XX-XXX-XX.us-west-2.compute.amazonaws.com' or the IP
What would i be doing wrong here ?? stuck with this issue
Thanks All
After some search i was finally able to solve the issue, i was always checking for security groups where everything was right but i missed adding rule in ec2 instance firewall for the ports 1883, 8080. Once its done i was able to connect to the broker from external clients.
Thanks for all who tried to help.