this post was submitted on 13 Aug 2025
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When I sshed into my server today, it said I had mail. I checked /var/mail/{myuser} and got a mail from caddy. The title was "SECURITY information for {hostname}". The message was this.

caddy : user NOT in sudoers ; PWD=/ ; USER=root ; COMMAND=/usr/bin/tee /usr/local/share/ca-certificates/Caddy_Local_Authority_-_2025_ECC_Root_31435960950297150297199787413716908247066220.crt

I'm still learning this self-hosting thing, I know enough to set stuff up but I still know barely anything about security, and the message looks kinda scary, so I would like to know what it means, thanks in advance. Note that I was messing around with Caddy and stuff yesterday, so maybe that has something to do with it, but I'm not sure.

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[–] some_guy@lemmy.sdf.org 3 points 2 days ago

If you have anything exposed, scripts and bots are testing your server all day, every day. So long as you've got proper security in place, ignore the failed attempts.