DeOSS

DeOSS ( Decentralized Object Storage Service ) is a decentralized object-based mass storage service that provides low-cost, secure and scalable distributed data storage services for the web3 domain.

📝 Reporting a Vulnerability

If you find any system errors or you have better suggestions, please submit an issue or PR, or join the CESS discord to communicate with us.

📢 Announcement

CESS test network rpc endpoints

wss://testnet-rpc.cess.network/ws/

CESS test network bootstrap node

_dnsaddr.boot-miner-testnet.cess.network

CESS test network public gateway

Account	Address
cXf3X3ugTnivQA9iDRYmLNzxSqybgDtpStBjFcBZEoH33UVaz	https://deoss-sgp.cess.network
cXjy16zpi3kFU6ThDHeTifpwHop4YjaF3EvYipTeJSbTjmayP	https://deoss-sv.cess.network
cXhkf7fFTToo8476oeRqxyWVnxF8ESsd8b7Yh258v6n26RTkL	https://deoss-fra.cess.network

🚰 CESS test network faucet

https://www.cess.network/faucet.html

⚠️ Attention

The following commands are executed with root privileges, if the prompt Permission denied appears, you need to switch to root privileges, or add sudo at the top of these commands.

⚙ System configuration

System requirements

• Linux 64-bit Intel/AMD

Install application tools

For the Debian and ubuntu families of linux systems:

apt install git curl wget vim util-linux -y

For the Fedora, RedHat and CentOS families of linux systems:

yum install git curl wget vim util-linux -y

Firewall configuration

By default, DeOSS uses port 8080 to listen for incoming connections and internally uses port 4001 for p2p communication, if your platform blocks these two ports by default, you may need to enable access to these port.

ufw

For hosts with ufw enabled (Debian, Ubuntu, etc.), you can use the ufw command to allow traffic to flow to specific ports. Use the following command to allow access to a port:

ufw allow 8080
ufw allow 4001

firewall-cmd

For hosts with firewall-cmd enabled (CentOS), you can use the firewall-cmd command to allow traffic on specific ports. Use the following command to allow access to a port:

firewall-cmd --get-active-zones

This command gets the active zone(s). Now, apply port rules to the relevant zones returned above. For example if the zone is public, use

firewall-cmd --zone=public --add-port=4001/tcp --permanent
firewall-cmd --zone=public --add-port=8080/tcp --permanent

Note that permanent makes sure the rules are persistent across firewall start, restart or reload. Finally reload the firewall for changes to take effect.

firewall-cmd --reload

iptables

For hosts with iptables enabled (RHEL, CentOS, etc.), you can use the iptables command to enable all traffic to a specific port. Use the following command to allow access to a port:

iptables -A INPUT -p tcp --dport 4001 -j ACCEPT
iptables -A INPUT -p tcp --dport 8080 -j ACCEPT
service iptables restart

🏗 Get the binary program

Method one

Download the latest release code directly at： Releases

Method two

Compile the binary program from the DeOSS source code and follow the process as follows:

1) install go

DeOSS requires Go 1.21, See the official Golang installation instructions.

Open go mod mode:

go env -w GO111MODULE="on"

Users in China can add go proxy to speed up the download:

go env -w GOPROXY="https://goproxy.cn,direct"

2) clone code

git clone https://github.com/CESSProject/DeOSS.git

3) compile code

cd DeOSS/
go build -o deoss cmd/main.go

4) Grant execute permission

chmod +x deoss

💰 Configure Wallet

Step 1: create a wallet account

The wallet is your unique identity in the cess network, it allows you to do transactions with the cess chain, provided that you have some balance in your wallet.

Please refer to Create-CESS-Wallet to create your cess wallet.

Step 2: Recharge your wallet

If you are using the test network, Please join the CESS discord to get it for free. If you are using the official network, please buy CESS tokens.

Configuration file

Use deoss to generate configuration file templates directly in the current directory:

./deoss config

The contents of the configuration file template are as follows. The contents inside are the defaults and you will need to modify them as appropriate. By default, deoss uses conf.yaml in the current directory as the runtime configuration file. You can use -c or -config to specify the location of the configuration file.

application:
  # gateway's workspace
  workspace: "/"
  # gateway's url
  url: ""
  # gateway run mode  [debug | release]
  mode: "release"
  # gateway API communication port
  port: 8080

chain:
  # signature account mnemonic
  # substrate well-known mnemonic:
  #   - https://github.com/substrate-developer-hub/substrate-developer-hub.github.io/issues/613
  mnemonic: "bottom drive obey lake curtain smoke basket hold race lonely fit walk"
  # waiting for transaction timeout, default is 15 seconds
  timeout: 30
  # rpc endpoint list
  rpc:
    # test network
    - "wss://testnet-rpc.cess.network/ws/"

storage:
  # communication ports in the storage network
  port: 4001
  # bootstrap nodes in the storage network
  boot:
    # test network
    - "_dnsaddr.boot-miner-testnet.cess.network"

user:
  # high priority accounts will not be restricted or blacklisted when accessing the gateway
  account:

access:
  # access mode: [public | private]
  # In public mode, only users in account can't access it
  # In private mode, only users in account can access it
  mode: public
  # account black/white list
  account:

# user files cacher config
cacher:
  # file cache size, default 512G, (unit is byte)
  size: 549755813888
  # file cache expiration time, default 3 hour (unit is minutes)
  expiration: 180
  # directory to store file cache, default path: workspace/filecache/
  directory:

# storage mode selector config
selector:
  # used to find better storage node partners for gateway to upload or download files,
  # two strategies for using your specified storage nodes, [priority | fixed]
  strategy: priority
  # storage miner filter file, json format, if it does not exist, it will be automatically created.
  # you can configure which storage nodes to use or not use in this file.
  # default path: workspace/storage_nodes.json
  filter:
  # maximum number of storage nodes allowed for long-term cooperation, default 120
  number: 120
  # maximum tolerable TTL for communication with storage nodes, default 500 ms (unit is milliseconds)
  ttl: 500000000
  # available storage node list refresh time, default 4 hours (unit is hours)
  refresh: 4

shunt:
  # give priority to storing files to miners with these peerids
  peerid:

🟢 Usage for DeOSS

start deoss service

Backend operation mode (the default configuration file is in the current directory):

nohup ./deoss run 2>&1 &

view deoss status

./deoss stat
+-------------------+------------------------------------------------------+
| role              | deoss                                                |
| peer id           | 12D3KooWFAcDpT7vTtbsS361P14z8LpgxPMRywQr19sAdNfdDBYE |
| signature account | cXjy16zpi3kFU6ThDHeTifpwHop4YjaF3EvYipTeJSbTjmayP    |
| domain name       | https://deoss-sv.cess.network                        |
+-------------------+------------------------------------------------------+

exit the cess network

It is generally not recommended to use this command：

./deoss exit

📖 Usage for API

Please refer to API Description

License

Licensed under Apache 2.0