How to publish an internal web server through the Astaro Security Gateway (Sophos UTM) Web Application Firewall instead of a plain DNAT.
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How to write an LSB-compliant init script on Ubuntu, with the required header, start and stop actions, and install steps to run at boot.
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How to make WordPress updates run over SSH2 instead of FTP on Ubuntu, with a dedicated user, SSH key pair, and the php libssh2 extension.
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How to set up iCloud on iOS 5 when your iTunes and MobileMe Apple IDs differ. Sign in with MobileMe, keep the shared iTunes ID for purchases.
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How to harden a WordPress install with tested backup plugins like BackupBuddy, strong admin passwords, and basic security steps.
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How to turn the $250 Barnes & Noble NOOK Color into a full Android tablet running Gingerbread or Honeycomb, with real hardware specs.
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How to earn Hurricane Electric IPv6 Sage certification by running an IPv6-only Postfix mail server on OS X Snow Leopard, step by step.
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How to start Hurricane Electric's free IPv6 certification, why IPv4 exhaustion matters after IANA's last blocks, and the first badge levels.
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How to run MySQL master-slave replication through an SSH tunnel, covering key setup, my.cnf settings, and the replication user grants.
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How to fix the Adobe Unit Types.osax errors flooding system.log on OS X Snow Leopard. Adobe's 64-bit update stops the osascript noise.
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Hidden macOS keyboard shortcuts and settings you won't find in System Preferences, from startup keys to Finder and Dock tricks.
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Why I moved robpickering.com from SquareSpace to WordPress in 2010, and how to migrate posts, dates, authors, and comments intact.
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Give every merchant a unique Gmail address to catch who sells it to spammers, then filter the junk with Gmail's built-in tools.
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Register your O'Reilly print books online and O'Reilly offers the eBook version for $5 each. How to claim the upgrade, step by step.
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