Opening port 80 EC2 Amazon web services

Question

I ve opened port 80 in the web console on my E2C instance s security group but I still can t access it via the public dns in the browser   Any ideas

User · Answer

This is actually really easy     Go to the  Network  amp  Security  -  Security Group settings in the left hand navigation Find the Security Group that your instance is apart of  Click on Inbound Rules Use the drop down and add HTTP  port 80  Click Apply and enjoy

User · Answer

For those of you using Centos  and perhaps other linux distibutions   you need to make sure that its FW  iptables  allows for port 80 or any other port you want   See here on how to completely disable it  for testing purposes only    And here for specific rules

User · Answer

Check what security group you are using for your instance  See value of Security Groups column in row of your instance  It s important - I changed rules for default group  but my instance was under quickstart-1 group when I had similar issue  Go to Security Groups tab  go to Inbound tab  select HTTP in Create a new rule combo-box  leave 0 0 0 0 0 in source field and click Add Rule  then Apply rule changes

User · Answer

Some quick tips    Disable the inbuilt firewall on your Windows instances  Use the IP address rather than the DNS entry  Create a security group for tcp ports 1 to 65000 and for source 0 0 0 0 0  It s obviously not to be used for production purposes  but it will help avoid the Security Groups as a source of problems  Check that you can actually ping your server  This may also necessitate some Security Group modification

[amazon-web-services] Opening port 80 EC2 Amazon web services

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