Year
2021
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FreeBSD: SSH Server Security Audit&Hardening (maximum score at SSHAudit online test)
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FreeBSD&PHP: How to activate php mail() and send emails from PHP/WordPress (Any CMSs)
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FreeBSD: Setup SoftEther and configure Offshore 100% Logless VPN server (Windows 10 as clients)
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OpenBSD: Setup ssh chat (an SSHd-based chat server)