443 not opened

redhatexp · 03-08-2017, 06:32 PM

// readhat

PHP Code:



cat /etc/services | grep 443 
https           443/tcp                         # MCom 
https           443/udp                         # MCom

443 is in services, but is not open.

PHP Code:



PORT     STATE SERVICE 
22/tcp   open  ssh 
111/tcp  open  rpcbind 
199/tcp  open  smux 
514/tcp  open  shell 
631/tcp  open  ipp 
934/tcp  open  unknown 
4444/tcp open  krb524 
5432/tcp open  postgres

How do we make it open?

Appreciate it!

frankbell · 03-08-2017, 08:02 PM

This might help. https://access.redhat.com/documentat...ipt-basic.html

Do you have SELinux enabled?

JJJCR · 03-08-2017, 10:44 PM

As Frankbell suggested, you need to check if SELinux is enabled and check as well what firewall you have in your OS.

And one more thing, are you opening the 443 to outside world? or just in the local network?

If opening to Internet, and your network has Hardware Firewall you will need it to be opened there also and map IP to your Redhat box.

check out links below:
http://www.linuxquestions.org/questi...t-7-1-a-13708/
http://www.lophost.com/tutorials/ded...-linux-server/

Good luck!

redhatexp · 03-09-2017, 05:03 AM

Quote:

Originally Posted by frankbell

This might help. https://access.redhat.com/documentat...ipt-basic.html

Do you have SELinux enabled?

Thank you!
I need to enable https:// (only inside of our network), so would this work?

PHP Code:



iptables -A INPUT -p tcp -m tcp --sport 443 -j ACCEPT 
iptables -A OUTPUT -p tcp -m tcp --dport 443 -j ACCEPT

redhatexp · 03-09-2017, 05:11 AM

Quote:

Originally Posted by JJJCR

As Frankbell suggested, you need to check if SELinux is enabled and check as well what firewall you have in your OS.

And one more thing, are you opening the 443 to outside world? or just in the local network?

If opening to Internet, and your network has Hardware Firewall you will need it to be opened there also and map IP to your Redhat box.

check out links below:
http://www.linuxquestions.org/questi...t-7-1-a-13708/
http://www.lophost.com/tutorials/ded...-linux-server/

Good luck!

Thank you!

It is just for local network.

bathory · 03-09-2017, 05:39 AM

Quote:

cat /etc/services | grep 443
https 443/tcp # MCom
https 443/udp # MCom

443 is in services, but is not open.

PORT STATE SERVICE
22/tcp open ssh
111/tcp open rpcbind
199/tcp open smux
514/tcp open shell
631/tcp open ipp
934/tcp open unknown
4444/tcp open krb524
5432/tcp open postgres
How do we make it open?

First of all you need to run a webserver using SSL, so it listens on port 443.
Listing 443 in /etc/services does not mean that there is a service running and listening on that port

Regards