Some say a set of regular expressions comprises a domain-specific language, or DSL; essentially, a mini-programming language. A full-blown programming language like Java or Python can do many things, ...
The first half of this tutorial introduced you to regular expressions and the Regex API. You learned about the Pattern class, then worked through examples demonstrating regex constructs, from basic ...
fail2ban is awesome once configured to work with your particular log files. Unfortunately my regex syntax skills are poor, so I need help. Here is a sample failed dovecot-auth attack in the syslog: ...
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