AWS EC2 Redhat Connection has timed out issue

Question

I am new to AWS EC2. I created a RedHat instance and it was running fine and was able to see tomcat home page at http://ec2-52-41-9-150.us-west-2.compute.amazonaws.com:8080 until I installed various packages for GUI and RDP.

Now I can RDP RedHat instance, but from my local computer browser http://ec2-52-41-9-150.us-west-2.compute.amazonaws.com:8080 giving me

  The connection has timed out , The server at ec2-52-41-9-150.us-west-2.compute.amazonaws.com is taking too long to respond

response.

My doubt is installing various GUI packages can block access to 8080 port on RedHat instance ?

I have following security groups

 Type               Protocol     Port  Source

 HTTP                TCP         80      0.0.0.0/0
 Custom TCP Rule     TCP         8080    0.0.0.0/0
 SSH                 TCP         22      0.0.0.0/0
 RDP                 TCP         3389    0.0.0.0/0
 HTTPS               TCP         443     0.0.0.0/0

Through SSH, I did

[ec2-user@ip-172-31-18-185 ~]$ sudo service tomcat status
    Redirecting to /bin/systemctl status  tomcat.service
    ● tomcat.service - Apache Tomcat Web Application Container
    Loaded: loaded (/usr/lib/systemd/system/tomcat.service; enabled; vendor preset: disabled)
      Active: active (running) since Sun 2016-07-03 07:26:24 EDT; 1h 23min ago
    Main PID: 745 (java)
    CGroup: /system.slice/tomcat.service
       └─745 /usr/lib/jvm/jre/bin/java -classpath /usr/share/tomcat/bin/b...

and

[ec2-user@ip-172-31-18-185 ~]$ netstat -lnt
  Active Internet connections (only servers)
  Proto Recv-Q Send-Q Local Address           Foreign Address         State
  tcp        0      0 192.168.122.1:53        0.0.0.0:*               LISTEN
  tcp        0      0 127.0.0.1:3350          0.0.0.0:*               LISTEN
  tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN
  tcp        0      0 127.0.0.1:631           0.0.0.0:*               LISTEN
  tcp        0      0 127.0.0.1:25            0.0.0.0:*               LISTEN
  tcp        0      0 0.0.0.0:3389            0.0.0.0:*               LISTEN
  tcp6       0      0 :::8009                 :::*                    LISTEN
  tcp6       0      0 :::3306                 :::*                    LISTEN
  tcp6       0      0 :::8080                 :::*                    LISTEN
  tcp6       0      0 :::22                   :::*                    LISTEN
  tcp6       0      0 ::1:631                 :::*                    LISTEN
  tcp6       0      0 ::1:25                  :::*                    LISTEN
  tcp6       0      0 127.0.0.1:8005          :::*                    LISTEN

and

[ec2-user@ip-172-31-18-185 ~]$ curl localhost:8080
  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

I am getting my html page fine when I did curl. What could be the possible reason, Why I am getting Connection time out error and not able to see my tomcat homepage in my PC browser?

Any guess / idea is helpful. Thanks. Btw, I stopped, started, rebooted my instance several times before I am posting this question.

tried this one too... [root@ip-172-31-18-185 ~]# service iptables stop Redirecting to /bin/systemctl stop iptables.service Failed to stop iptables.service: Unit iptables.service not loaded. — eaglerider

Moises Rezonzew Moises Rezonzew · Accepted Answer · 2016-07-03T16:07:46

First check your tomcat configuration under

tomcat/conf/server.xml

maybe it is configured to listen only to the localhost, If that is not the case check your VPC settings, Maybe they don't allow to be accessible publicly.

AWS EC2 Redhat Connection has timed out issue

1 Answers