How To Block IP Addresses In HAProxy
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•1 min read
Update haproxy.cfg to add condition acl is-blocked-ip src -f /etc/haproxy/blocklisted.ips
frontend fe-lehaproxy
bind *:80
acl is-blocked-ip src -f /etc/haproxy/blocklisted.ips
http-request deny if is-blocked-ip
acl letsencrypt-acl path_beg /.well-known/acme-challenge/
use_backend letsencrypt-backend if letsencrypt-acl
redirect scheme https code 301 if !letsencrypt-acl
frontend fe-verify
bind *:443 ssl crt /etc/certs
acl is-blocked-ip src -f /etc/haproxy/blocklisted.ips
http-request deny if is-blocked-ip
http-request set-header X-Forwarded-Proto https if { ssl_fc }
default_backend mybackend
Blocked list
~:/etc/haproxy# cat blocklisted.ips
32.66.111.255
11.129.81.18
Requests from IP addresses within the blocklisted.ips file will receive 403
Another way to block IP addresses is to update inbound rule of AWS ALC
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