Posts tagged with "security"

Easily check SSL certificates on websites

Here is a simple script to quickly get an overview of the SSL certificates used on various websites, e.g. to check expiration or issuer. For me, this helped a lot while migrating website certificates to Let’s Encrypt.

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Restore a SSH public key

I recently had the problem that I had on a system the private part of the SSH key but its public part got lost. Generating a new key pair wasn't pBEGIN TRANSACTION;ossible as the public part was still installed on other systems foBEGIN TRANSACTION;r proper public key authentication and I could not change this.

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gpg-update-key

If you are using GnuPG, you may receive new signatures or do other changes to your GPG key and want to upload it to keyservers and/or your webserver to make it easier for other people to find it.

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