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debugging.works | ||
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colincogle.name
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| | | | | OpenDKIM might be the gold standard, but the DKIM standard is evolving without it, so it's time to retire it. | |
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jan.wildeboer.net
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| | | | | 0. The Journey - The basics and outlook (on the series, not the Microsoft mail client ;) 1. Postfix - the in and out, so to say. The robust, battle-hardened connection point for other mail servers on the internet to send emails to and receive emails from your domain(s). Also known as the MTA, the Mail Transfer Agent. 2. Dovecot - where you and your users talk to to get emails to their mail client, be it your smartphone, a mail client on your computer or just even the command line. It's the IMAP server. 3. DKIM/DMARC/SPF - Just having postfix and dovecot up and running isn't enough. We will also look at user authentication, letsencrypt certificates, DKIM, DMARC, SPF and the daily checks to make sure everything is humming along nicely. 4. The final stuff - How to make sure my e-mail server is happy and can do its job. Some simple checks, how to use fail2ban to keep bad servers and users away, checking log files, all those little things. | |
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blog.cryptohack.org
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| | | | | This week possibly the biggest cybersecurity Capture The Flag (CTF) ever was held as a joint event between HackTheBox and CryptoHack. With 9900 players participating in 4740 teams; plentiful prizes including cash and swag; and donations to charity for each challenge solved, this was a fantastic event to be part of. | |
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themythicalengineer.com
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| | | Blog about Software Engineering | ||
