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229 lines
6.9 KiB
Markdown
229 lines
6.9 KiB
Markdown
---
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# This file is licensed under the MIT License (MIT) available on
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# http://opensource.org/licenses/MIT.
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layout: base-core
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lang: en
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columns: 1
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id: bitcoin-core-requirements
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title: Requirements And Warnings - Bitcoin Core
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breadcrumbs:
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- bitcoin
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- bcc
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- bcc features
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- Requirements
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---
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# Bitcoin Core Requirements And Warnings
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{:.not-displayed}
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{% include bitcoin-core/download-bitcoin-core.html %}
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Bitcoin Core gives you increased [security][bcc validation] and
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[privacy][bcc privacy] at a cost. You need to [take
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responsibility](#wallet-responsibility-checklist) for the security of
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your bitcoins, meet higher [minimum system
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requirements](#system-requirements), and beware of some [possible
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problems](#possible-problems).
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**No matter what Bitcoin software you use,** you should never
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buy more bitcoins than you can afford to lose. Bitcoin is still an
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experimental system and bitcoins remain a risky investment.
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## Wallet Responsibility Checklist
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Bitcoin Core puts you in charge of your wallet, which means your
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bitcoins are at risk unless you complete certain tasks:
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{% comment %}
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<!-- Note: the short pop-ups below are a temporary measure. I (@harding) plan
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to write a Bitcoin Core user guide for the site that will provide more
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detailed instructions for at least some of these things. -->
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{% endcomment %}
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- <button class="popup js" data-container="backup_your_keys">Backup your keys</button>
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- Make sure your <button class="popup js" data-container="secure_your_wallet">wallet is secure</button>
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- Setup an <button class="popup js" data-container="offline_wallet">offline wallet</button>
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(cold storage) for significant amounts of bitcoins
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- Watch for [security notifications](/en/alerts)
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- Allow your heirs to <button class="popup js" data-container="bitcoin_inheritance">receive your bitcoins</button>
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if you die or become incapacitated
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If you need help with any step, please ask for assistance in any of
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Bitcoin's [friendly forums][bcc forums] or [live chatrooms][bcc live
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help].
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## System Requirements
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{% assign DISK='<span class="fa fa-li fa-hdd-o fa-2x"></span> **Disk space**<br>' %}
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{% assign DOWNLOAD='<span class="fa fa-li fa-download fa-2x"></span> **Download**<br>' %}
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{% assign UPLOAD='<span class="fa fa-li fa-upload fa-2x"></span> **Upload**<br>' %}
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{% assign MEMORY='<span class="fa fa-li fa-database fa-2x"></span> **Memory (RAM)**<br>' %}
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{% assign SYSTEM='<span class="fa fa-li fa-desktop fa-2x"></span> **System**<br>' %}
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{% assign OS='<span class="fa fa-li fa-windows fa-2x"></span> **Operating system**<br>' %}
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{% assign FOOTNOTE='<b>*</b>' %}
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{% capture INITIAL_DOWNLOAD %}<b>*</b> Plus a one-time {{site.text.chain_gb}} GB download the first time you start Bitcoin Core.{% endcapture %}
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<div markdown="block" class="two-column-list" id="system-requirements-accordion">
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### Bare Minimum (With Default Settings)
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<div markdown="block">
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{:.fa-ul}
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- {{DISK}} {{site.text.bitcoin_datadir_gb}} GB
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- {{DOWNLOAD}} 250 MB/day (8 GB/month){{FOOTNOTE}}
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- {{UPLOAD}} 5 GB/day (150 GB/month)
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- {{MEMORY}} 512 MB
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- {{SYSTEM}} Desktop<br
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>Laptop<br
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>[Some ARM chipsets][wiki bitcoin core compatible devices arm] >1 GHz
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- {{OS}} Windows 7/8.x<br
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>Mac OS X<br
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>Linux<br
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>Some BSDs
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<br class="clear">
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{{INITIAL_DOWNLOAD}}
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</div>
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### Bare Minimum (With Custom Settings)
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<div markdown="block">
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{:.fa-ul}
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- {{DISK}} {{site.text.bitcoin_datadir_gb_pruned}} GB
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- {{DOWNLOAD}} 150 MB/day (5 GB/month){{FOOTNOTE}}
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- {{UPLOAD}} 10 MB/day (300 MB/month)
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- {{MEMORY}} 256 MB
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- {{SYSTEM}} Desktop<br
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>Laptop<br
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>[Most ARM chipsets][wiki bitcoin core compatible devices arm]
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- {{OS}} Windows 7/8.x<br
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>Mac OS X<br
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>Linux<br
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>Some BSDs
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<br class="clear">
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{{INITIAL_DOWNLOAD}}
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**Learn more:** [Bitcoin Core configuration options][bcc configuration]
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</div>
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### Minimum Recommended
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<div markdown="block">
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{:.fa-ul}
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- {{DISK}} {{site.text.bitcoin_datadir_gb}} GB
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- {{DOWNLOAD}} 500 MB/day (15 GB/month){{FOOTNOTE}}
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- {{UPLOAD}} 5 GB/day (150 GB/month)
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- {{MEMORY}} 1 GB
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- {{SYSTEM}} Desktop<br
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>Laptop<br
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>[Some ARM chipsets][wiki bitcoin core compatible devices arm] >1 GHz
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- {{OS}} Windows 7/8.x<br
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>Mac OS X<br
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>Linux
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<br class="clear">
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{{INITIAL_DOWNLOAD}}
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</div>
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</div>
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## Possible Problems
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{% include bitcoin-core/bitcoin-core-possible-problems.md %}
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<div class="not-displayed">
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<div id="backup_your_keys" title="Backup Your Keys" markdown="block">
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By default, you need to backup Bitcoin Core after every 100
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transactions. This includes both transactions you send as well as
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payments you request (whether or not you actually received the payment).
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For example, you need to backup after sending 33 payments and requesting
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67 payments (even though you only received 60 payments).
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Bitcoin Core can be configured to allow you to go more transactions
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between backups. See the [`-keypool` setting][bcc configuration].
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</div>
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<div id="secure_your_wallet" title="Secure Your Wallet" markdown="block">
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Anyone who gets access to your wallet can steal your bitcoins. The
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first line of defense against this is encrypting your wallet, an option
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from the File menu in the graphical interface.
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However, encrypting may not be enough if your computer becomes infected
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by malware. Learn about <button class="popup js" data-container="offline_wallet">offline wallets</button>
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for security against this type of attack.
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In addition to securing your wallet, you also need to keep your backups
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secure. Anyone who gets access to them can also steal your bitcoins.
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**Learn more:** [secure your wallet][]
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</div>
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<div id="offline_wallet" title="Offline Wallet" markdown="block">
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Computers that connect to the Internet are frequently hacked or infected
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with bitcoin-stealing malware. Computers that never connect to the
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Internet are a much more secure location for your bitcoins.
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Bitcoin Core can be run on an always-offline computer, creating an
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offline wallet (also called a cold wallet). The offline wallet will
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securely store the private keys, while a separate online Bitcoin Core
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wallet will send and receive transactions.
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**Learn more:** [Creating and signing offline transactions][offline transactions]
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</div>
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<div id="bitcoin_inheritance" title="Bitcoin Inheritance" markdown="block">
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Your Bitcoin wallet isn't like a bank account---it won't automatically
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go to your heirs if you die or become disabled.
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You have to plan ahead and make sure there is a way for your heirs
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to access your wallet backups when you're no longer available.
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**Learn more:** [Estate planning: how can I ensure my bitcoins are inheritable?][inherit bitcoins]
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</div>
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</div>
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<br class="clear big">
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<div class="prevnext">
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<span markdown="1">**Previous Feature**<br>[Privacy][bcc privacy]</span>
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<span markdown="1">**Next feature**<br>[User interface][bcc user interface]</span>
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</div>
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<br class="clear">
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{% include references.md %}
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