443 port is not listening

Hey there,

We'll first want to check the status of your firewall and listening service.

You can check if your port is opening by reviewing your iptables:

iptables -L

You can take a similar approach of reviewing your service listening on 443:

netstat -plunt | grep :443

See if your apache process, or something else, is listening on 443. If Apache is not listening on 443, you can check the status and configuration syntax:

/etc/init.d/apache2 status

Ubuntu/Debian

apache2ctl -t

CentOS and Fedora

httpd -t

We hope that helps! Let us know if you find a cause and resolution.

Sincerely,
Tara T
Linode Support Team

OS is ubuntu 16.04. I have executted the commands suggested by you and found the following results. I am not able to find out root cause of the issue. Further Netstat -lpnt not showing 443 .Kindly advice solution

result of Iptables -L

root@localhost:/etc/apache2/sites-available# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination

Chain FORWARD (policy ACCEPT)
target prot opt source destination

Chain OUTPUT (policy ACCEPT)

target prot opt source destination

netstat -plunt | grep :443

showing blank

/etc/init.d/apache2 status

root@localhost:/etc/apache2/sites-available# sudo /etc/init.d/apache2 status
● apache2.service - LSB: Apache2 web server
Loaded: loaded (/etc/init.d/apache2; bad; vendor preset: enabled)
Drop-In: /lib/systemd/system/apache2.service.d
└─apache2-systemd.conf
Active: inactive (dead) since Mon 2019-10-21 07:02:24 UTC; 48s ago
Docs: man:systemd-sysv-generator(8)
Process: 16371 ExecStop=/etc/init.d/apache2 stop (code=exited, status=0/SUCCESS)
Process: 16353 ExecStart=/etc/init.d/apache2 start (code=exited, status=0/SUCCESS)

Oct 21 07:02:24 localhost systemd[1]: Stopped LSB: Apache2 web server.
Oct 21 07:02:24 localhost systemd[1]: Starting LSB: Apache2 web server…
Oct 21 07:02:24 localhost apache2[16353]: * Starting Apache httpd web server apache2
Oct 21 07:02:24 localhost apache2[16353]: Action 'start' failed.
Oct 21 07:02:24 localhost apache2[16353]: The Apache error log may have more information.
Oct 21 07:02:24 localhost apache2[16353]: *
Oct 21 07:02:24 localhost apache2[16371]: * Stopping Apache httpd web server apache2
Oct 21 07:02:24 localhost apache2[16371]: *
Oct 21 07:02:24 localhost systemd[1]: Started LSB: Apache2 web server.

apache2ctl -t

syntax ok

further i have executed the command

openssl s_client -CApath /etc/ssl/certs/ -connect ssdfashion.com:443

and got the below results

root@localhost:/var/log/apache2# openssl s_client -CApath /etc/ssl/certs/ -connect ssdfashion.com:443
connect: Connection refused
connect:errno=111

Hi
The issue is resolved after private key replaced in virtual host