Author: matteocisilino
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Database credential rotation after an ISPConfig breach
I rotate credentials the moment I suspect a breach. Not after I’ve confirmed one. Database credential rotation on an ISPConfig server sounds like routine maintenance. It stops being routine the…
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Linux Kernel Vulnerability: a Use-After-Free in TCP IPv4
A Linux kernel vulnerability (CVE-2026-98432) causes a use-after-free in TCP IPv4. Debian is already patched; RHEL and Ubuntu are still waiting for a fix.
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WordPress email log: why I check it with FluentSMTP
Why I check the WordPress email log in FluentSMTP before server logs: failed sends, manual resending, encrypted SMTP credentials, backup connections, and the log’s honest limits.
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Deactivation, uninstallation and personal data
What happens when you deactivate or delete Cisilino Site Defense Network, which data stays, and how to list it in your privacy notice.
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Troubleshooting CSDN: FAQ
Solutions to the typical problems with Cisilino Site Defense Network: blocks, 500 errors, suspensions, the panel and logs.
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Debug log: PHP errors in their own file
How to turn on the Debug log tab of the plugin CSDN since version 1.0.15: duration, file size, rotation, downloads and limits.
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Activity log WordPress: the CSDN tab
How to use the Activity log tab of the plugin CSDN: event groups, filters, retention, the row cap, sending to the panel and clearing it.
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Rate limiting: limits on authors and visitors
How to use the Rate limiting tab of the plugin CSDN: limits on authors and visitors, default values, suspensions and revoking them.
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User registration: who can create accounts
How to use the User registration tab of the plugin CSDN: policy, allowed roles, mandatory email and the limits of this protection.
