From version 1.0.34:
If you do not see the KYC link in the "Actions Required" sidebar of the desktop application, it means that you have not yet whitelisted your wallet A. Whitelisting wallet A ensures that only wallets you authorize can be operated by your wallet B. After completing the whitelisting steps, a KYC link will appear next to each wallet A you whitelisted. Here is what the KYC prompt in the "Actions Required" sidebar looks like when you have not yet selected wallet A to be whitelisted:
Once you have selected Wallet A to be whitelisted, you will see a KYC prompt with a “Select your country” drop-down option and a “Start KYC” button, as shown below:
As of the v1.0.34 update, Sentry wallet holders can decide which wallets they operate.
How to set up Wallet A whitelist in Windows client version?
Go to the Sentry wallet page in the desktop app.
Click "Allowed Wallets". A drawer will pop up on the right side of the desktop app, showing a list of Wallet A that has been assigned to your Wallet B.
Select the wallets A that you want to allow wallet B to operate by checking the boxes next to those wallets A.
If there is a wallet A in the list that you don't recognize, it is recommended that you uncheck the box next to that wallet A.
By allowing your wallet B to run a node for a wallet A, you accept to pay the GAS associated with submitting assertions and claiming rewards.
Click the "Apply" button at the bottom.
After clicking Apply, Sentry will automatically restart.
Any keys associated with allowed wallets will appear on the Sentry Wallet page.
Any keys associated with wallets that are not allowed will no longer appear on the Sentry wallet page.
How to set the whitelist of wallet A in the CLI command line client version?
Run the boot-operator command and press Enter.
Enter the private key of Wallet B and press Enter.
You will be asked if you want to use a whitelist for Wallet B to run. If you want to prevent others from using your Wallet B to pay their GAS fees, enter "Y" and press Enter.
It is highly recommended to whitelist the wallet B runtime. The only time you would enter "N" in this step is if you don't mind potentially paying GAS for someone else's wallet A.
Use the up and down arrow keys on your keyboard to navigate to the wallet A you want to whitelist, then press the spacebar to select it.
It is recommended that you only whitelist your own wallet A containing the key. If you see any wallets you don't recognize, don't select them. It may be that someone maliciously authorized you and then used your wallet B to run the node and consume your GAS.
Repeat as instructed in step 4 for each walletA you wish to whitelist and press Enter when finished.