firewalld has 443 enabled but it refuses connections
5193
What causes the 'Connection Refused' message?
3268
Is there a preinstalled or automatic firewall?
35089
"wait_fences: failed to receive reply: 10004003"?
136264
How can I use Windows Firewall to only permit the Windows Update service to make an outbound connection?
107112
No connection could be made because the target machine actively refused it (PHP / WAMP)
26916
How do I with ufw deny all outgoing ports excepting the ones I need?
19363
Why should I firewall servers?
38107
All HTTP requests get ERR_CONNECTION_REFUSED, HTTPS works - How to troubleshoot?
40152
Debian - Port 80 is blocked, but I don't know by what
126205
KB 4480970 and or KB 4480960 breaks SMB2 connections to Windows 7 shares
104425
Unable to find the socket transport "ssl" - did you forget to enable it when you configured PHP?
15964
How do I configure a new Ubuntu installation to accept ssh connections?
132379
Couldn't connect to internet after upgrading from 16.10 to 17.04
151177
Enable remote MySQL connection: ERROR 1045 (28000): Access denied for user
125639
client denied by server configuration
26826
Can't save firewalld rules with --permanent
19029
why can't this CentOS 7 server see wifi connections?