You also can disable xpinstall.signatures.required on about:config page on some version/build of Firefox. It's more convenient than o_e_l_e_o, but have few security implication and you should make sure to enable it again once the problem has been resolved. On a side note, for those who use AdBlock, uBlock or NoScript, make sure you're not fooled with advertising, pop-up or fake button  |
|
|
|
|
To be fair, most modern OS/computer don't use MBR & BIOS but GPT & UEFI where rootkit can't infect GPT/boot sector easily since valid signature required for booting (unless you disable Secure Boot).
Regardless, it's still more secure using hardware wallet rather than use USB flash drive, especially because private keys never leave the device and signing process happen on HW wallet itself rather than on computer.
|
|
|
|
Don't forget the fact they put their application/installer on commit, rather than releases page. https://github.com/<profile name>/<repository name>/releases 2. number of commits. which shows the activity of the project, a scam project doesn't have that many commits. usually scammers make the malicious code and put it up, that's it!
Take note few project have lots of commit on "development" branch, but very few commit on default/master branch because they use squash merging on pull request. |
|
|
|
Rank only relevant for those want join signature campaign or often posts with very fast interval between posts. And as mentioned by other member, it'd be abused by make 1K posts and send 10 merit to that account (either from alt-account or merit seller). Your idea would be fine if signature feature and spam aren't exist. Mostly Merits are sent only when someone helps someone
Wrong, it totally depends on sender's reason, intention or standard. |
|
|
|
Without speaking of privacy, exposing public key is as safe as exposing address. Be afraid of a conspiracy or of unknown mechanisms that can allow your private key to be discovered is totally unjustified.
Actually, there are 2 valid mechanism to expose one's private key : 1. Finding flaw or put backdoor on random (RNG, PRNG, CSPRNG, etc.) system. Example : https://bitcoin.org/en/alert/2013-08-11-android2. Put backdoor on k values of ECDSA. Reference : https://bitcoin.fr/public/divers/docs/klepto-ecdsa.pdfFortunately, most wallet are open-source so both mechanism to discover user's private key is minimized. Still i wouldn't say "as safe as", but " almost as safe as". |
|
|
|
-snip- Correct me if I'm wrong, but if he knows his master public key he could simply compare the generated key to his known key and stop after step 2. Similarly, if he knew the first address this wallet generated, he wouldn't need steps 4 or 5, as he could simply generate the address and check it against the entered address without having to perform a check for balance or continue down n more addresses. You're right, but normally people don't store his master public key. Generate address might be needed if he never send Bitcoin (which means none of public key never revealed). But if he store any of address generated by Ledger Nano S, he can skip step 4 which significantly reduce required time (since you don't need to wait for API reply from bitcoind or blockchain explorer. |
|
|
|
Try to install Electrum with --upgrade parameter python3 -m pip install --user Electrum-3.3.4.tar.gz[fast] --upgrade In very few cases, remove [fast] parameter (?) fix the problem python3 -m pip install --user Electrum-3.3.4.tar.gz[fast] --upgrade If neither of them work, you could try uninstall and install required library again. Also, as for reference, how did you upgrade Electrum? Do you use pip command or use AppImage file? AFAIK there's less problem if you use AppImage file. |
|
|
|
I have no idea how to link chainstate, though. I am not sure if a normal folder shortcut will do the trick.
On windows, you can use mklink command. Example mklink /D <source> <destination>
mklink /D d:\current\bitcoin\directory\chainstate c:\path\to\chainstate
There's extensive guide to split Bitcoin Core file at https://en.bitcoin.it/wiki/Splitting_the_data_directory |
|
|
|
Sekedar informasi, jika ingin menggunakan semua fitur di bitcoin-cli, bisa mengaktifkan -txindex di parameter startup bitcoind. Salah satu fitur yang bisa dipakai adalah getrawtransaction untuk mendapatkan transaksi raw dari transaksi yang telah dikonfirmasi. Contoh : getrawtransaction 9b0fc92260312ce44e74ef369f5c66bbb85848f2eddd5a7a1cde251e54ccfdd5 01000000010000000000000000000000000000000000000000000000000000000000000000ffffffff0704ffff001d010bffffffff0100f2052a010000004341047211a824f55b505228e4c3d5194c1fcfaa15a456abdf37f9b9d97a4040afc073dee6c89064984f03385237d92167c13e236446b417ab79a0fcae412ae3316b77ac00000000
Buset, untuk aplikasi CLI gedhe juga sizenya
Jika masih dianggap besar, bisa menggunakan mode pruning dimana bitcoind hanya menyimpan beberapa block terakhir (tergantung ukuran prune yang diatur). Tetapi beberapa perintah CLI tidak bisa dipakai. Apakah Bitcoin-CLI mempunyai kelebihan tersendiri ketimbang versi GUI atau bitcoin-qt?
Bisa digunakan untuk orang yang mempunyai VPS, dimana tampilan hanya berupa terminal/console (tidak ada GUI). |
|
|
|
|
There's nothing wrong with the transaction/address, "Unspent" means you haven't use / spend Bitcoin you own.
It's used to identify whether the receiver/owner of the coins already use / spend that Bitcoin.
If you send your Bitcoin (from onfaucet.com) to another address, it will changed into "Spend"
TLDR : There's nothing wrong, you can use your Bitcoin normally.
Edit : Above statements are wrong if onfaucet.com is scam website / OP don't have control over his Bitcoin.
|
|
|
|
"Don't send to 1BitcoinEaterAddressDontSendf59kuE. These coins are lost."
One day computers will be able to hash the privatekey for this address or for addresses with no access to it. Therefore coins should be removed after mining from the coinbase address to show that someone has access to it. Otherwise they are shalecoins waiting to be "remined" or "fracked" one day.
That's not how it works, you generate public key (using ECDSA.secp256k1) from private key then perform RIPEMD-160 and SHA-256 Also, the only way to prove some has access to that address are by sign message or spend coins from that address. Even Quantum Computer won't able to obtain private key of that address because it's public key isn't known. |
|
|
|
Maybe your wallet.dat password protected and you not remember.
Just try this solution then put it into your core-qt , start it and insert recovery code(if it locked)
<link censored>
Before anyone attempt download files from that repository and accidentally open malicious files, here are the content of the repository : - README.md - CryptoWalletPassRecover.rar - CryptoWalletPassRecover.exe - README_CWPR.txt Crypto wallets password recovery GUI win 32/64.
Supported new algorithms of recovery methods.
Very easy to work with it.
Just add your file ,check the methods of recovery.
Supports for all Core Wallet.dat files.
Supports for all Electrum wallet_default files.
MyEtherium backup files.
For better results please switch-off Firewall and antivirus.
1. Install software
2. Provide us (<email censored>) ID Hardware and username
3. Get license from us to use it.
4. Injoy
For purchase the Pro version,please write to: <email censored>
Clearly it's dangerous application, real application on GitHub always : 1. Provide source code (where anyone can compile the application by himself) 2. Never share .exe / other compiled application on commit, but release page |
|
|
|
So far the only positive balance was found in one of the "sending addresses" in Bitcoin Core but if I understand correctly, this is not an address I own but an address I sent money to, correct?
Yes Also, I have another wallet file that I tried to load in Bitcoin Core but was rejected. It might be a wallet of another cryptocurrency (maybe Dogecoin??). How can I check this?
There are 2 3 ways : 1. Download client for cryptocurrency you think you own/use in past and load wallet.dat into that wallet client/application 2. Open your wallet.dat with any text editor and look for text/string which represent a cryptocurrency (on Bitcoin Core, usually list of the address are on bottom of file/line). It's painfully slow method and i don't recommend this method. For example, on my Bitcoin testnet wallet, there are 14.6K lines and i found list of my address on line 14357 3. Use pywallet ( https://github.com/jackjack-jj/pywallet) to get list of address of your wallet.dat. Check https://bitcoin.stackexchange.com/a/25315 for more information Make sure you backup your wallet.dat before doing anything else. |
|
|
|
I was browsing and few times i encountered Cloudflare error with this message (Ray ID and IP removed due to privacy reason). Error 1016
Origin DNS error
What happened?
You've requested a page on a website (bitcointalk.org) that is on the Cloudflare network. Cloudflare is currently unable to resolve your requested domain (bitcointalk.org).
What can I do?
If you are a visitor of this website:
Please try again in a few minutes.
If you are the owner of this website:
Check your DNS settings. If you are using a CNAME origin record, make sure it is valid and resolvable. Additional troubleshooting information here.
Did anyone encounter same problem? For reference, i'm using Tor connection. |
|
|
|
|
It's impossible on permission-less/decentralized system such as Bitcoin unless the malicious act happens on Bitcoin network and can be verified by Bitcoin full-node client.
For example, on LN if a dishonest-party attempt to broadcast older transaction commitment, another party can activate/broadcast "punishment" transaction which takes all dishonest-party coins.
|
|
|
|
Wouldn't Ubuntu Mate 16.04.2 connect to the same repository as Ubuntu Mate 18.04.2 anyway?
I don't know what i said apply to flavored/modified Ubuntu, but AFAIK : 1. it connects to same repository, but 2. Each Ubuntu version/release got different application version 3. LTS version prefer compatibility and stability. After few years, you won't able to get latest version of application. If you want get latest version of all application, you must use newest version and update your Ubuntu regularly. For the sake of learning, how should I have entered sudo install -m 0755 -o root -g root -t /usr/bin ~/.bitcoin/bitcoin-0.17.1/bin/* minus the root priledges? Practically, what risks did doing this introduce? (Given that the Raspberry Pi and 1tb drive are single-purpose, meaning if all the data on micro sd card and 1tb drive were damaged, nothing irreplaceable would be lost.) I rarely use install command, but AFAIK for install/modify application, you need sudoers ability. I don't know about possible risks (besides you install malicious application to root user), but if you wary about it, you should install it to user/group who don't have sudoers privilege. Personally i prefer use dpkg -i package_name.deb command or simply run an application with syntax ./bitcoin-0.17.1/bin/bitcoin-qt. |
|
|
|
● Total ukuran data menjadi 4.13 Gb dan Penggunaan Memory (Ram) sebesar 34 Mb   Cukup menarik RAM usage dari ABCore hanya 34 Mb untuk client full node, meskipun pada umumnya client full node seperti Bitcoin Core minimal menggunakan 256MB. ● Proses sinkronisasi lama, dengan download speed sekitar 20 Mbps (2.5 MB/s) dibutuhkan waktu 3-4 hari untuk mencapai 100%
● Ukuran total data yg tersimpan di storage lumayan besar 4.13 GB untuk ukuran Pruning 1Gb
● Untuk proses transaksi dan proses lainnya harus menggunakan fungsi "Console"
● Hasil dari perintah "Console" tidak bisa dicopy (jadi address harus ditulis secara manual)
- Menurut saya, waktu sinkronasi tidak lama (dibandingkan dengan client seperti Bitcoin Core). Kemungkinan besar terjadi bottleneck di CPU atau Storage. - Storage yang dipakai besar karena ukuran pruning hanya membatasi storage yang dipakai untuk block saja. Dalam full node, client juga menyimpan UTXO (disebut juga chainstate) yang ukurannya cukup besar. |
|
|
|
Hi ETFbitcoin, I ran those 3 commands and ended up with 0.15.1 again.
Looks like Ubuntu Mate need to update their Bitcoin Core image??
As bob123 mentioned, their repository is updated, except for precise (Ubuntu 12.04) and artful (Ubuntu 17.10), where as your Ubuntu version is 16.04 (with codename xenial). Few possibility : 1. Something when wrong when you execute command sudo-apt update which make Ubuntu there's no update. 2. You've added another repository which also serve Bitcoin Core, but have older version which causes conflict. Looks like Ubuntu Mate need to update their Bitcoin Core image??
For package/application which comes from 3rd party repository, the one who should update it are repistory's owner manger, not Ubuntu developer or Canonical. |
|
|
|
|
Show Posts
