Update maltrail.conf

[whitej46]

security/maltrail: add FAIL2BAN_ALLOWLIST to server config template to allow localhost access to fail2ban endpoint

Important notices

Before you submit a pull request, we ask you kindly to acknowledge the following:

• I have read the contributing guidelines at https://github.com/opnsense/plugins/blob/master/CONTRIBUTING.md
• I opened an issue first for non-trivial changes and linked it below.
• AI tools were used to create at least part of the code submitted herewith.

If AI was used, please disclose:

• Model used: Claude Sonnet 4.6
• Extent of AI involvement: Recommended lines to add to template

---

Describe the problem

A clear and concise description of the problem this pull request addresses.
BlocklistMaltrail alias was not updated (Issue #5462)

---

Describe the proposed solution

Added the line
FAIL2BAN_ALLOWLIST 127.0.0.1
to /usr/local/opnsense/service/templates/OPNsense/Maltrail/maltrail.conf

---

Related issue

Issue #5462

[fichtner]

Although we have a package for fail2ban for legacy reasons we don’t integrate it anywhere. This would need documentation and a toggle, but I’m not sure it’s worth all the trouble. If maltrail supports custom include files we could support it that way.

cheers,
Franco

[mimugmail]

I didnt check this feature after port update. Can habe a look after vacation.