ASICseer takes security seriously and hopes to achieve the Bitmain© vision for true operational security. Bitmain© recently released SSH-disabling security firmwares. Our company applauds Bitmain© for taking into account aftermarket security concerns and for protecting their customers.
To restore SSH after installing these firmwares and to prevent unauthorized logins, follow the below procedure.
You need to downgrade to March Firmware.
sha256sum Antminer_S9_all_201903041137_autofreq.gzto verify it against the below sha256sum hash.
You need to restore SSH to your ASIC.
asicseer_secure_sshto a 64-bit linux box local to your ASIC network. Linux download curl example:
curl -L -o asicseer_secure_ssh https://asicseer.com/page/security-restoring-ssh/?dl=asicseer_secure_ssh
sha256sum asicseer_secure_sshto verify it against the below sha256sum hash.
chmod +x asicseer_secure_sshto make the program executable.
rootto something else, temporarily change it back to
./asicseer_secure_ssh ip.of.restricted.asicto restore SSH access to your ASIC.
You need to proceed with Securing your ASIC with Passwordless Login and Public Key.
NOTE: We advise against installing so-called exploits and other unverified executables from questionable sources, and/or allowing others access to your network. When sharing this program, link only to this page: https://asicseer.com/page/security-restoring-ssh as it has the following security features:
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