doom'd net

still mucking around with the ol'computer

  • Using Sendmail to forward to either gmail or iCloud

    sendmail

    Configuring sendmail to use either gmail or iCloud as a mail forwarder has a lot of nice advantages.

    For example, you can forward root email to your personal email, run your own email server. Or even go old school and use pine or elm for your email client. I use it to run my own email server and to email status from monitoring scripts.

    It’s not particularly hard either, but it does require a …

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  • Getting ssh on port 443 to work with firealld and SELINUX.

    ssh

    Configure sshd to listen on port 443?

    Why would one want sshd listening on port 443 might you ask?

    Well, for my home Linux box, I don’t need a secure web server, but I do need a convenient back door to be able to log into it remotely from time to time. 443 is a standard port that is open at most public WiFi spots and other places, so it makes sense to use …

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  • Some Testing with BTRFS

    btrfs

    BTRFS is a new filesystem with some interesting features.

    It’s still new but has been supported for a while in Fedora, but I’ve just recently decided to play with it.

    It seems to be intended to be an open source replacement for ZFS. While a great filesystem, ZFS’ license has issues that keeps it from being used in Linux.

    So Oracle introduced btrfs which is suppose to have similar features, but solve the …

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  • Removing an Oil Pan from a KJ Jeep Liberty WITHOUT Removing, or ‘Lifting’ the Engine!

    Oil Pan

    The Jeep KJ Liberty is a relatively easy vehicle to work on. The biggest obstacles tend to be rust and the sometimes wacky documentation. The later of which can sometimes be a bit overdone. Take removing the oil pan. The factory service manual for the Liberty says you have to remove the engine (wtf??).  The other repair manuals have some poppycock about lifting the engine. It’s Crazy!

    NOT ONE BIT OF THAT IS EVEN …

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  • Can Someone Pass the SAT, or Anyother Filling the Bubble Type Test, by Randomly Answering Each Question?

    sat test

    The What If? blog recently asked What if everyone who took the SAT guessed on every multiple-choice question? How many perfect scores would there be?

    This got me thinking.  Since using the Monte Carlo Method is one of my favorite methods to solve problems, it seemed that this would be a perfect problem to solve.

    I greatly simplified things from a SAT scoring system.  But I wrote a program that would create a random test …

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  • What Really Happened at Roswell in July, 1947?

    Alien Crashola

    It is generally accepted that something crashed in the desert outside of Roswell NM around July 7th, 1947. My original thought was that NOTHING crashed there, But now, I think something was intentionally crashed by the air force. What I’m thinking happened was that they crashed some kind of weather balloon or some kind of simple aircraft - maybe something made to look like a flying disk. It was staged on a night when there …

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