view mod_s2s_log_certs/README.markdown @ 4877:adc6241e5d16

mod_measure_process: Report the enforced limit The soft limit is what the kernel actually enforces, while the hard limit is is how far you can change the soft limit without privileges. Unless the process dynamically adjusts the soft limit, knowing the hard limit is not as useful as knowing the soft limit. Reporting the soft limit and the number of in-use FDs allows placing alerts on expressions like 'process_open_fds / process_max_fds >= 0.95'
author Kim Alvefur <zash@zash.se>
date Tue, 18 Jan 2022 18:55:20 +0100
parents ea6b5321db50
children
line wrap: on
line source

---
summary: Log certificate status and fingerprint of remote servers
...

Introduction
============

This module produces info level log messages with the certificate status
and fingerprint every time an s2s connection is established. It can also
optionally store this in persistent storage.

**info** jabber.org has a trusted valid certificate with SHA1:
11:C2:3D:87:3F:95:F8:13:F8:CA:81:33:71:36:A7:00:E0:01:95:ED

Fingerprints could then be added to
[mod\_s2s\_auth\_fingerprint](mod_s2s_auth_fingerprint.html).

Configuration
=============

Add the module to the `modules_enabled` list.

    modules_enabled = {
        ...
        "s2s_log_certs";
    }

If you want to keep track of how many times, and when a certificate is
seen add

`s2s_log_certs_persist = true`

Compatibility
=============

  ------- --------------
  trunk   Works
  0.10    Works
  0.9     Works
  0.8     Doesn't work
  ------- --------------