Iptables -j REJECT unavailable
119916
iptables: REJECT not working, but DROP does
16723
Retrieve malicious IP addresses from Apache logs and block them with iptables
20468
The TCP/IP connection to the host localhost, port 1433 has failed
107045
Allowing FTP with IPTables
108783
How does iptables MASQUERADE work on the incoming side?
67790
iptables resets when server reboots
150548
Disabling IPv6 in Ubuntu Server 18.04
144849
I can connect to my web server with my internal IP, but not my external IP?
101314
Postfix warning: hostname [unknown host] does not resolve to address [unknown ip]
69313
Block all ports except SSH/HTTP in ipchains and iptables
30232
Ping IP returned "destination net unreachable", even with different network
151476
postfix doesn't work after iptables set up
38892
How iptables tables and chains are traversed
67798
Will tcpdump see packets that are being dropped by iptables?
46289
The search parameter isanswered ignores acceptances
103319
What can be the reasons of connection refused errors?
56616
Network error: Connection refused putty