Tag Archives: firewall
Implementing an IP blocklist with firewalld
In 2013 I wrote about using IP sets and iptables to block IP addresses from a blocklist provided by organizations such as OpenBL. The Bash script I wrote for that was usable at the time, but in the intervening years many Linux distributions (including … Continue reading
Mass blocking of evil IP addresses with iptables and IP sets
When running a Linux server or firewall it may be useful to use iptables to block a list of known “evil” IP addresses. There are many organizations maintaining “block lists” of such IPs, such as Spamhaus, DShield, and OpenBL. Blocking … Continue reading