Regarding to my last Maltrial fail2ban connection problem, i have manually added two command lines into FAIL2BAN_ALLOWLIST 127.0.0.1 & FAIL2BAN_ALLOWLIST 192.168.1.1/24 into /usr/local/opnsense/service/templates/OPNsense/Maltrail/maltrail.conf to resolve fail2ban connection problem.
https://forum.opnsense.org/index.php?topic=52066.msg268118#msg268118 (https://forum.opnsense.org/index.php?topic=52066.msg268118#msg268118)
However, it only works for few hours only then appears alot of error message as below. I would like to confirm that Maltrial is working so far so good and i can access the fail2ban list from my pc without any problem. I have tried to restart all the service and reboot the firewall. It doesn't help to solve the connection problem.
2026-06-12T12:54:00
Error
firewall
alias resolve error BlocklistMaltrail (error fetching alias url http://127.0.0.1:8338/fail2ban)
2026-06-12T12:54:00
Error
firewall
error fetching alias url http://127.0.0.1:8338/fail2ban (HTTPConnectionPool(host='127.0.0.1', port=8338): Max retries exceeded with url: /fail2ban (Caused by NewConnectionError("HTTPConnection(host='127.0.0.1', port=8338): Failed to establish a new connection: [Errno 61] Connection refused")))
2026-06-12T12:48:45
Error
firewall
alias resolve error BlocklistMaltrail (error fetching alias url http://127.0.0.1:8338/fail2ban)
2026-06-12T12:48:45
Error
firewall
error fetching alias url http://127.0.0.1:8338/fail2ban (HTTPConnectionPool(host='127.0.0.1', port=8338): Max retries exceeded with url: /fail2ban (Caused by NewConnectionError("HTTPConnection(host='127.0.0.1', port=8338): Failed to establish a new connection: [Errno 61] Connection refused")))
2026-06-12T12:42:02
Error
firewall
alias resolve error BlocklistMaltrail (error fetching alias url http://127.0.0.1:8338/fail2ban)
2026-06-12T12:42:02
Error
firewall
error fetching alias url http://127.0.0.1:8338/fail2ban (HTTPConnectionPool(host='127.0.0.1', port=8338): Max retries exceeded with url: /fail2ban (Caused by NewConnectionError("HTTPConnection(host='127.0.0.1', port=8338): Failed to establish a new connection: [Errno 61] Connection refused")))
2026-06-12T12:37:03
Error
firewall
alias resolve error BlocklistMaltrail (error fetching alias url http://127.0.0.1:8338/fail2ban)
2026-06-12T12:37:03
Error
firewall
error fetching alias url http://127.0.0.1:8338/fail2ban (HTTPConnectionPool(host='127.0.0.1', port=8338): Max retries exceeded with url: /fail2ban (Caused by NewConnectionError("HTTPConnection(host='127.0.0.1', port=8338): Failed to establish a new connection: [Errno 61] Connection refused")))
2026-06-12T12:32:01
Error
firewall
alias resolve error BlocklistMaltrail (error fetching alias url http://127.0.0.1:8338/fail2ban)
2026-06-12T12:32:01
Error
firewall
error fetching alias url http://127.0.0.1:8338/fail2ban (HTTPConnectionPool(host='127.0.0.1', port=8338): Max retries exceeded with url: /fail2ban (Caused by NewConnectionError("HTTPConnection(host='127.0.0.1', port=8338): Failed to establish a new connection: [Errno 61] Connection refused")))
2026-06-12T12:27:00
Error
firewall
alias resolve error BlocklistMaltrail (error fetching alias url http://127.0.0.1:8338/fail2ban)
2026-06-12T12:27:00
Error
firewall
error fetching alias url http://127.0.0.1:8338/fail2ban (HTTPConnectionPool(host='127.0.0.1', port=8338): Max retries exceeded with url: /fail2ban (Caused by NewConnectionError("HTTPConnection(host='127.0.0.1', port=8338): Failed to establish a new connection: [Errno 61] Connection refused")))
2026-06-12T12:22:01
Error
firewall
alias resolve error BlocklistMaltrail (error fetching alias url http://127.0.0.1:8338/fail2ban)