thank you all for your kindness and courtesy in your reply,have a nice day

Hi all,
i use bitcoin core v0.17.1 for store my bitcoins,
What can I do to get a good backup?

I used the dumpwallet command and I followed the backup procedures from the GUI by putting all the files on an encrypted usb pen.
but I read that from the xpriv(private masterkey) derived all the wallets created following precisely the xpriv, but that the xpriv was created by the root seed (in fact a part of the xpriv is the same for all the wallets).
Is it possible to extract the root seed?
does the root seed have to be encrypted in some way to avoid being vulnerable?
or am I just getting too worried and don't have to think about root seeds?

thank you.BTC

but could i also use only one address and save my private key?

in Bitcoin core v0.17.0 is the masterkey represents a sufficient backup? (taken with the dumpwallet command)

hi, does anyone have the full node bitcoin core v0.17.0?
 I would like to know if it's normal that in the GUI it's no longer possible to create a receiving address, I have already created about twenty with the console command, but it seems so strange that it can no longer be created normally via the GUI.
BTC

I would like to know where these convictions come from, spectrocoin is an online wallet service and not an exchange , bankera exchange is a exchange as binance.

Hello everyone,
I'm sorry for forced English, but I wanted to express my opinion on BANKERA.
I see a lot of people throwing shit on this project. People who say they understand the world of cryptocurrencies and know what is bankera when they say they are emotional. I would like to point out that the banker's project at the end didn't turn out to be a scam as they didn't disappear with the money and continue to work on different points now I give you a demonstration of what I am saying with seven facts that all need to know.

1. the bankers' team only speaks when it has concrete facts.

2. Weekly earnings  keep coming.

3. An anti-dumping move was tested prior to inclusion on the hitbtc list

4. the delay for the exchange has been anticipated on their blog

5 PERVESK: Bankera, SpectroCoin and Pervesk belong to the same group of companies owned by Mantas, Justas and Vytautas. (Checked)

6.SpectroCoin was founded in February 2013 and today continues its work.

7. the dump at $ 0.04 was obvious as we are still in a bear market, any ico from its price in the latter makes -80%

I have studied that the world of crypto is an emotional world and that in order to win we must put aside emotions. Seeing people who follow the mass and who only look at the price by selling at a loss without counting the total value of that actual assets and complaining about the company for the dump, though obviously it makes a whole other effect. With this post I would like to invite anyone to think about this project and the world of crypto in general, the only way to win is to follow the system behind it, never follow their emotions or anyone else who is not a professional.
Bankera at 0.004 $ represents a victory for those who know the system and knows that you have to wait years to get a fair return. I conclude by saying that patience is one of the many keys to success.

#Proof of Authentication
Bitcointalk Username: spart3x
Bitcointalk URL: https://bitcointalk.org/index.php?action=profile;u=2168276
Twitter Username: @posteck11
Telegram Username: @spart3x
youtube profile URL: https://www.youtube.com/channel/UCpJYG8tSKLVtqNErCGiT-9g?view_as=subscriber
Facebook Profile URL: https://www.facebook.com/umberto.bersani.33
ETH Address : 0x5314D31B61242506226bD8f80231527E52109431

#JOINAIRDROP

Telegram (Yes/No): YES
If Yes, Telegram : @spart3x

Twitter (Yes/No): YES
If Yes, Twitter Retweet URL: https://twitter.com/posteck11/status/1012361112300421120

Facebook (Yes/No): YES
If Yes, Facebook Share URL: https://www.facebook.com/umberto.bersani.33/posts/145881176307728

Reddit (Yes/No): YES
If Yes, Reddit Username URL: https://www.reddit.com/user/spart3x

#Proof of Authentication
Campaign: Airdrop
Telegram username: @spart3x
Facebook username: https://www.facebook.com/umberto.bersani.33
Twitter username: @posteck11
Medium username: @posteck11

#proof of authentication
Telegram username @spart3x

#proof of autenthication
Telegram login: @spart3x
Twitter login: @posteck11
Register on Website: NO

I think that this project has really good chances of success because the idea presents incredible variables implemented by a few.
I wish the whole team a good luck
goodbye.

103 bitcoin ... think how easy it was to undermine them ..