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Server: Apache/2.4.58 (Ubuntu)
System: Linux srv1.dlabib.net 6.8.0-94-generic #96-Ubuntu SMP PREEMPT_DYNAMIC Fri Jan 9 20:36:55 UTC 2026 x86_64
User: hbkconsultan_usr (1002)
PHP: 7.4.33
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File: //etc/fail2ban/filter.d/stunnel.conf
# Fail2ban filter for stunnel

[Definition]

failregex = ^ LOG\d\[\d+:\d+\]:\ SSL_accept from <HOST>:\d+ : (?P<CODE>[\dA-F]+): error:(?P=CODE):SSL routines:SSL3_GET_CLIENT_CERTIFICATE:peer did not return a certificate$

ignoreregex =

# DEV NOTES:
# 
# Author: Daniel Black
#
# Based off: http://www.fail2ban.org/wiki/index.php/Fail2ban:Community_Portal#stunnel4