1.
Navigate to MANAGEMENT > NETWORK: SSH Setup. The SSH Setup window
will open to the Host Keys tab by default.
2.
Select the Key Length value for the key type you want to change.
Key sizes that are powers of 2 or divisible by 2 are recommended. The most popular
sizes are 768, 1024, and 2048. Large key sizes of up to 4096 are supported, but
may take 10 minutes or more to generate. DSA keys size support is limited to 1024
bits. The key type ED25519 supports 256 bits.
3.
Check the Regenerate All Keys box.
4.
Click Submit. The new values will be saved.
Note: Changing the values and submitting them in this manner DOES NOT
generate new host public/private key pairs. See "Creating Host Public/Priv-
ate Key Pairs" below for information on how to create new host pub-
lic/private key pairs.
Deleting Host Keys
You can delete individual host keys. To delete a key:
1.
Navigate to MANAGEMENT > NETWORK: SSH Setup. The window will open to
the Host Keys tab by default.
2.
Select Delete in the field for the key you wish to delete, and click Submit.
Creating Host Public/Private Key Pairs
You may create individualHost Public/Private Key pairs. Host keys must first be deleted
before new Host Keys can be created. To create a new set of host keys:
1.
To access the SSH setup screen, navigate to MANAGEMENT > NETWORK: SSH
Setup. The window will open to the Host Keys tab by default.
2.
Should you want to change the key length of any host key, enter the desired length
in the text field corresponding to the length you wish to change.
3.
Check the Regenerate All Keys box.
4.
Click Submit.
The KeyType/Status/Action table will temporarily disappear while the VersaSync
regenerates the keys. The Host keys are generated in the background. Creating
RSA and DSA keys, each with 1024 bits length, typically takes about 30 seconds.
Keys are created in the order of RSA, DSA, ECDSA, ED25519. VersaSync will gen-
erate all 4 host keys, RSA, DSA, ECDSA, and ED25519.
5.
Delete any of the keys you do not want. See "Deleting Host Keys" above.
82
CHAPTER 2 • VersaSync User Manual Rev. 7.0
2.8 Configuring Network Settings
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