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Port 80 failed: Connection refused

Posted January 26, 2017 367k views
UbuntuFirewall

Suddenly my server down !, and when tried
curl http://myip -v

* Rebuilt URL to: http://myip/
*   Trying myip...
* connect to myip port 80 failed: Connection refused
* Failed to connect to myip port 80: Connection refused
* Closing connection 0
curl: (7) Failed to connect to myip port 80: Connection refused

How detect the reason ? which log file can i see it ?

Please help.

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abada
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abada

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16 answers
codingdiva80 November 4, 2017

Nobody helped him, and I have the same problem. This doesn’t seem very straightforward. I have tried adding port forwarding, but no luck. I wonder if most of what you find is outdated…also, please stop telling people to “Google” when Google is exactly what brought me here.

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bobbyiliev July 20, 2020

Hi there,

Just came across this question, this could mean that your web server is not running.

I could suggest starting with the following steps on how to troubleshoot common Nginx problems on a Linux server:

https://www.digitalocean.com/community/questions/how-to-troubleshoot-common-nginx-issues-on-linux-server

If you are using Apache you could follow the steps here:

https://www.digitalocean.com/community/questions/how-to-troubleshoot-common-apache-issues-on-linux-server

Regards,
Bobby

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awalk303 July 8, 2018

I have the same issue - no firewalls are set up, ufw is inactive, and all traffic to port 80 is refused though there is a server listening on it. 

sudo netstat -nlp

returns

tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      19843/nginx -g daem

I can successfully curl the ip address or localhost from the droplet, but from anywhere else the connection is refused. Any server on port 80 will yield the same result, not just an nginx one - and any other port (81, 9000, etc) will work

The droplet version is 16.04.4

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zhh358 May 29, 2019

Despite ufw or any other firewall rules on the Linux system. There are Firewalls rules in the DigitalOcean “Networking” panel. By default, there’s no 80 rule.
You need to add HTTP/HTTPS to the firewall rules.

  • On DigitalOcean Control Panel page,
  • Open “Droplets”, select the droplet used
  • Go to “Networking” and check “Firewalls”, make sure there’s a rule: HTTP, TCP, 80, All IPv4 | All IPv6
  • If not, click the firewall group icon (the blue one above)
  • Under “Inbound Rules”
  • Add “New rule” and select HTTP (and HTTPS if needed)
  • Save and the 80 port should be accessible.

Hope this is helpful.

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Woet January 26, 2017

Use SSH to check syslog and your webserver logs.

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  • abada January 26, 2017

    I did but i can`t detect the reason !

    Reply Report
    • Woet January 26, 2017

      Is your webserver running?

      Reply Report
      • abada January 26, 2017 
        my@server:~$ service nginx status
nginx stop/waiting

        What is this mean ?

        Reply Report
        • Woet January 26, 2017

          I cannot tell you everything. Please use Google, read some guides or hire a sysadmin.

          Reply Report
          • jtittle1 January 26, 2017

            @Woet

            That’s really not all that helpful. The community exists to provide a means to help those who need it. Referring them to Google, another SE, or telling them to hire a sysadmin doesn’t provide a solution to their immediate issue.

            I’d of already replied with a solution, though it seems that there’s an issue within the community that is preventing me from doing so.

            Reply Report
          • Woet January 26, 2017

            Thanks for your opinion, but I’d rather teach people how to learn than spoon-feed.

            Reply Report
          • jtittle1 January 27, 2017

            @Woet

            I understand, though the community exists for a reason. Anyone can do a quick search on Google, Bing, or another SE just as anyone can click the link at the top of the page labeled “Tutorials” and search the existing database of guides offered by DigitalOcean. They post here because they need as quick an answer as they can get, not to be told to look elsewhere.

            What applies today may not apply tomorrow. That’s the case quite often even with DigitalOcean’s very own guides – they need to be updated frequently. When it comes to searching, not everyone is a sysadmin and due to that fact, so they may not know what to search for.

            If you look at guides outside of DigitalOcean, not many are maintained and if they are, they aren’t always maintained to the fullest extent.

            That said, I don’t consider it to be spoon-feeding any more than a tutorial or guide. Whether a solution is posted here or a link is provided with what I would have typed out, someone spends the time to tell others how to do a task and, in turn, help them out.

            Reply Report
TaGa April 24, 2017

same here. Very strange.
When sshed into my server, “curl localhost” is ok. But external visits will be dinied.

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admin585820 June 16, 2018

Hi. Its real trouble.
I start Nginx on Ubuntu.
Uwf is disabled.
I use a command “telnet IP 80” to checking server.
When I check it a local or from my other droplet all is ok.
But if I try to connect with 80 port from my local machine this port is silenced.
And when I'am restarting my Nginx on 8080. It works correctly!!!

Hey, DigitalOcean’s Devs, fix it, please, ASAP!!! %)

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jameer August 16, 2018

Hi,

I was having the same issue. I was getting Connection Refused error when trying to access the site using http://domain.com.
I was able to browse the site by setting any port other than 80 in nginx server listen module.
I checked with 81, 2000 and few more-
http://domain.com:81 was accessible
http://domain.com:2000 was accessible
…

I found a solution of it after many hours-
https://askubuntu.com/questions/676434/port-80-connection-refused

I was missing Reset IPTables firewall rules. I used this link http://insanelabs.net/linux/linux-reset-iptables-firewall-rules/ and did as mentioned.

My issue got fixed.

I posted this answer because may be it could help someone in same situation like mine.

Thanks

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  • smcelhinney August 22, 2018

    Thanks, this helped me resolve the issue too!

    Reply Report
    • smcelhinney August 22, 2018

      Just as an addendum to this, I used this in conjunction with docker, and for some reason, it causes docker IP tables to be screwy, you might get this error: 

      Failed to Setup IP tables: Unable to enable SKIP DNAT rule:  (iptables failed: iptables --wait -t nat -I DOCKER -i br-XXXXXXXXX -j RETURN: iptables: No chain/target/match by that name.
 (exit status 1))

      An easy solve is to restart docker: 

      sudo systemctl stop docker
sudo systemctl start docker

      Hope that helps!

      Reply Report
leonaburime November 4, 2019

For anyone having an issue of network connectivity I had to re-enable
my firewall with

ufw enable

For whatever reason I think DigitalOcean reset it. Took me two hours. How unprofessional of this company

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tkadm30 March 11, 2017

I have the same problem since this morning. A quick scan on nmap revealed that my port 80 is being closed on the remote server. I have advised the support team and waiting for a response.

Hope this helps,

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