I've always loved the RandomArt feature in SSH that is used to display a visual representation of a peer's public key. I thought it would be great to extend this to TLS.…
read more...Verify TLS Servers with Random Art
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Generating Memorable Hostnames for a Subnet
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This is a simple Bash script I wrote to generate memorable names for an IP address space. The names are camelCase word pairs obtained by shuffling a list of the thousand most common English words. This produces readable and memorable hostnames, e.g. FormerAbility.…
read more...Reverse Port Forwarding with Bash
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I had wondered for a while how SSH reverse port forwarding works. RPF allows you to publish any reachable port upstream to a server. This allows you to act as a server without having to open any external ports.…
read more...Sed Substitution Cheatsheet
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This is a comprehensive list of examples for the sed (stream editor command). This command is used to find, replace, refactor, and modify text.…
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