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Security and Restoring SSH

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.

For March/May/June 2019 Firmware

Download and prepare asicseer_secure_ssh version 1.0.4

  1. Download asicseer_secure_ssh to a 64-bit linux box (or Ubuntu WSL on Windows) local to your ASIC network: curl -L -o asicseer_secure_ssh https://asicseer.com/page/security-restoring-ssh/?dl=asicseer_secure_ssh
  2. Optional: Run sha256sum asicseer_secure_ssh to verify it against sha256sum hash at the bottom of this page.
  3. Run chmod +x asicseer_secure_ssh to make the program executable.

For a Single ASIC

  1. Run ./asicseer_secure_ssh -p ip.of.restricted.asic WEBUIPASS (WEBUIPASS is usually root)

For Multiple ASICs

  1. Create a file called iplist.txt and populate it with a newline-separated list of ASIC IPs that you would like to unlock.
  2. Run ./asicseer_secure_ssh -p --iplist /tmp/iplist.txt WEBUIPASS (WEBUIPASS is usually root)

For July 2019 Firmware

Use the Bitmain© Control Board Program Recovery with Bitmain© Stock Firmware.

NOTE: Be careful, any Bitmain© firmware described as having a "security" or "secure" firmware actually prevents SSH to your ASIC.

Now that SSH is restored, 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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