How to block all ports except 80,443 with iptables?
69313
Block all ports except SSH/HTTP in ipchains and iptables
139461
Permanently blocking a domain in iptables
108502
How to restrict "Remote Login" (ssh) access to only certain IP ranges?
66876
Blocking requests from specific IPs using IIS Rewrite module
119102
Allowing IP range in Windows Firewall
124939
How to rate-limit in nginx, but including/excluding certain IP addresses?
95050
IPTables only allow localhost access
57709
How to limit reverse SSH tunelling ports?
20094
Block a random domain pointing at my dedicated IP
141550
Block IPs if they access a resource
119539
JS Validation IP:Port
130940
Why can't IP addresses start with 0 or 255?
40152
Debian - Port 80 is blocked, but I don't know by what
107045
Allowing FTP with IPTables
26916
How do I with ufw deny all outgoing ports excepting the ones I need?
128424
Limiting sessions to one IP at a time
148843
What do the numbers in brackets mean on the iptables-save output?