Table of Contents
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why mbuf.net?
mbuf is the kernel set of structs and functions part of the network subsystem, core part of the BSD systems. As I was amazed by that subtle memory management, I wanted a short domain name, I couldn’t resist to pick it, since 2003.
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contact references
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email and messaging service
| Protocol/Project | Contact |
|---|---|
| RFC5321 aka as email | jma@mbuf.net OpenPGP advised using my OpenPGP public key, ascii/utf8 format encouraged ;) |
| Delta Chat | please, send me an invitation or request one by email |
| SimpleXChat | please, send me an invitation or request one by email |
| Cwtch | 2r6czdk7wj62y2gpgc44g7wrsvjoc5oxpu55ltfjcybxxh5h4mw77nyd QR code |
| Matrix | @jma:matrix.mbuf.net |
| XMPP | jma@tls.mbuf.net, using OMEMO |
| Session | my id = 05356df02197e44311f3ce1d543f22a93e8b9ea811cf2e576097923d04cf60ed69 QR code |
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Social networks
| soc.net | contact |
|---|---|
| Mastodon | @hb9ery@pouet.chapril.org |
| Diaspora | sigsleep@nerdpol.ch |
| nostr | npub1lpndfq0zzux4ek3g2dyh9s00hvxgd4zs7gzqh07f4l2s7l2qjhtsfmumpf |
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CAVEAT
- OpenPGP key fingerprint: C0DA 0664 2F14 295E 9E02 1DD1 F854 7A9A B32E 897D
- For email exchanges, please use my OpenPGP public key, if you use OpenPGP.
- If you want me to connect by OpenSSH on a specific host, please add my OpenSSH public key.
- For file transfer, Please use OnionShare as favoured method, or OTS or PrivateBin (Privatebin can set a dedicated additional password). You can then send me the resulting link securely, if by email, please do use my OpenPGP public key.
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off-grid OTA

- HF, VHF, UHF: my callsign is HB9ERY
- meshtastic 868Mhz device id 06f5a11c public key = base64:k593syO21VuhfPoDekPSxrUFw8hnTOW5ilRWIifzmmU=