Please make sure port 8443 is listing if not try to restart your tomcat once 
and then check the listing, once you get it is listing, please run below 
command to allow 8443 to open outside of your server.

iptables -I INPUT -m tcp -p tcp -s --dport 8080 -j ACCEPT

How to check 8443 Is listing,

Netstat -tnap | grep 8443

From: <>
Sent: 13 March 2020 06:17
Subject: Urgent help tomcat 9 and https 8443

Hello Everyone,

I am new to this group and tomcat.

I am having issue with tomcat 9 using port 8443. I configured tomcat 8443  
using CA certificate and my configuration are as follow.

<Connector port="8080" protocol="HTTP/1.1"
               redirectPort="8443" URIEncoding="UTF-8" />
           port="8443" maxThreads="200"
           scheme="https" secure="true" SSLEnabled="true"
           SSLVerifyClient="optional" SSLProtocol="TLSv1+TLSv1.1+TLSv1.2"/>

I verified the certificate file using openssl command and certificate working 
fine and there is no issue with the certificate.

#openssl verify dlkopatu001.crt
dlkopatu001.crt: OK

But for unknown reason port 8443 is not listening and because of that I am not 
able to access url using https://url:8443

Please help me to resolve this issue.


Sivakumar Saravanamuthu
Senior Systems Engineer, Open Systems
CSL Limited
POA2 , 189-209 Camp Road, Broadmeadows | VIC 3047 | Australia<><>
Mobile: +61 419 835 682
Please consider the environment before printing this email.


This email, including any attachments, is confidential and contains proprietary 
content and may be legally privileged. This transmission is intended only for 
the designated recipient(s), and any duplication or distribution, in any form 
or part, without the written consent of the sender is strictly prohibited. Any 
confidentiality or privilege is not waived or lost if this email has been sent 
to you by mistake, in which case you should not read, copy, adapt, use or 
disclose this message. If you've received this email by mistake, please delete 
the message, disregard its contents and notify the sender of the mistake. Any 
personal information in this email must be handled in accordance with 
applicable privacy laws.

Reply via email to