https://pomfret.uk/tags/waf/ Recent content in Waf on Daniel Pomfret Hugo en-us © Daniel Pomfret Tue, 17 Oct 2017 00:00:00 +0000 https://pomfret.uk/posts/comodo-waf-mod_security2-failed-write-dbm-file-varcachemodsecurityip-invalid-argument/ Tue, 17 Oct 2017 00:00:00 +0000 https://pomfret.uk/posts/comodo-waf-mod_security2-failed-write-dbm-file-varcachemodsecurityip-invalid-argument/ <p>After seeing apache using all it&rsquo;s threads, and connections not timing out as they should, I looked at the apache error_log and found the following error.</p> <p>Message: collection_store: Failed to write to DBM file &ldquo;/var/cache/modsecurity/ip&rdquo;: Invalid argument</p> <p>I not only saw this on cPanel servers, but on Plesk and plain LAMP (with mod_security and comodo waf installed).</p> <p>It looks like Comodo somehow released a broken update, that caused the /var/cache/modsecurity/ip.pag to corrupt (that&rsquo;s my guess).</p>