2017年1月23日 · I'm trying to set up a filter rule in Microsoft Exchange Online via the web interface (Office365 Admin Center > Exchange Admin Center > Mail Flow / Rules). I want to match the "sender address" against known addresses that are "inside the organization" so as to detect incoming phish/whale delivery.

2024年11月1日 · So, looking at the rules alone, I see that smtpd_sender_restrictions is holding off the email transmission from a given server at its reject_unknown_helo_hostname with NOQUEUE: reject: RCPT from mx1.domain.com[20.4.18.2]: 450 4.7.1 <SSVBR0369.invalid.host>: Helo command rejected: Host not found; from=< [email protected] …

2017年2月19日 · I know this is a bit old, but just to add something to it. One solution would be to create additional Capture Groups in your Regular Expression for the url in the match element of the rule, so as to extract explicit parts of the URL.

You have typo in first regex, you should use {0,5} instead of (0,5}. You may want to remove last | in second regex. A (one|two|three|) regex matches empty string (as the 4th alternative inside parentheses is an empty string). So your long regex also matches just /s+/s+ - two subsequent spaces, carriage returns, etc. I think it was not intended.

2023年4月23日 · Im trying to create a simple modsecurity regex rule that stops processing the rules when a match is found and just returns status 200 on a POST request so that it doesnt continue and get blocked by another CRS rule later in the chain. Heres my rule:

2023年10月5日 · To modify the rewrite rule to redirect all subdomains to the main site (example.com), you can update the regular expression pattern in the condition.

The idea being that I would use $ to fill out the AWS rolename that is needed to gain access. However I dont thing this is working because I just read that the RegExReplace replaces ALL RegEx matches in the source string with the string generated by the 3rd parameter.

2022年6月14日 · With fail2ban, I want to ban IPs based to the content of apache_access.log file. This is an example of line I want match with regex rules : 197.221.254.56 - - [13/Jun/2022:22:59:59 +0200] &quot;GET /

2015年11月24日 · When asking regex questions, always add the tag for the specific programming language or tool (e.g., Perl, Python, or Java; vi, emacs, or ɢɴᴜ grep; etc.) you are using. Learn more… Top users

2016年10月18日 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.