SOLVED, was: URGENT: unreachable web server on Ubuntu 18.04 running on EC2/AWS

[Mike Marchywka]

I guess just fwiw, there are tools like traceroute and nmap that can be very useful here.
Although even wget may be informative with debugging info turned on. Alternatively,
netstat on the host may be useful too or wget to 127.0.0.1:8 etc. When I see unreachable,
I usually see that in an interface or DNS issue so I was curious what you had encountered.

If you are checking the firewall and care about security, you probably want to run nmap
anyway etc. 



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________________________________________
From: ubuntu-users <ubuntu-users-bounces at lists.ubuntu.com> on behalf of M. Fioretti <mfioretti at nexaima.net>
Sent: Thursday, February 20, 2020 1:01 PM
To: Ubuntu user technical support, not for general discussions
Subject: SOLVED, was: URGENT: unreachable web server on Ubuntu 18.04 running on EC2/AWS

On Thu, Feb 20, 2020 18:51:12 PM +0100, Ken wrote:

> > You sure Apache is actually *running*?...

as I imagined, the error I made was on the EC2/AWS side, not inside the Ubuntu instance.

I had not enabled inbound HTTP traffic in the security group
corresponding to that instance, in the EC2 dashboard. Now I do see the
apache default page. FTR, what pointed me to look there was this page:

"you did not open the port in the security group"

https://alestic.com/2009/08/ec2-connectivity/

this other page seems about the same general issue

http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/authorizing-access-to-an-instance.html

On to installing dokuwiki now! (see my earlier message this morning)

Thanks
Marco
--

M. Fioretti http://mfioretti.com                   http://stop.zona-m.net

Your own civil rights and the quality of your life heavily depend on how
software is used *around* you

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