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Reason: According to a comment in an issue from the Qv2ray GUI, v2ray is getting unmaintainable, and should be replaced by sing-box or shadowsocks-go. (Discuss in Talk:V2Ray)

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- Qv2ray

V2Ray is the core tool of Project V, which is mainly responsible for the realization of network protocols and functions, and communicates with other Project V.

## Installation

Install the v2ray package. For the development version, install the v2ray-gitAUR package. For GUI client, please see Qv2ray.

## Configuration

V2Ray configuration is done with a JSON formatted file. See Configuration File Format and Configuration.

## Usage

### From the command line

V2Ray is started with the `v2ray` command. See Commandline.

### Daemon management

Start/enable `v2ray.service`.

#### Multiple config

To use multiple config, you can edit `/etc/systemd/system/v2ray.service`, add the following:

    /etc/systemd/system/v2ray.service

    [Unit]
    Description=V2Ray Service
    After=network.target nss-lookup.target

    [Service]
    User=nobody
    AmbientCapabilities=CAP_NET_ADMIN CAP_NET_BIND_SERVICE
    CapabilityBoundingSet=CAP_NET_ADMIN CAP_NET_BIND_SERVICE
    ExecStart=/usr/bin/v2ray -confdir /etc/v2ray/

    [Install]
    WantedBy=multi-user.target

### Configuration Methods

V2Ray has several configuration methods, the more efficient one is WebSocket+TLS.

Tip: It is a more reasonable and easier way to configure TLS by Nginx.

## Tips and tricks

### Routing rules

See Routing and Routing of V2Ray .

The preset routing rule files are `geosite.dat` and `geoip.dat` in `/usr/share/v2ray`. They are provided by the v2ray-domain-list-community and v2ray-geoip packages respectively. These two packages are installed by default as dependencies of v2ray.

#### Replacing the preset routing rule files

There are ready-made packages for some routing rule files. For example, you can install the v2ray-rules-dat-gitAUR package for @Loyalsoldier/v2ray-rules-dat.

For routing rule files without ready-made packages, you can create packages and install or remove v2ray-domain-list-community and v2ray-geoip without removing the dependent package and put the routing rule files in the `/usr/share/v2ray` directory.

Warning: Replacing `geosite.dat` and `geoip.dat` directly may cause file conflicts.

## Troubleshooting

### Failed with result 'exit-code'

If you see this error in the log: `Failed with result 'exit-code'`, it is because V2Ray does not have write permission to /var/log/v2ray/access.log. Use the following command to solve the problem.

    chown -R nobody /var/log/v2ray

## See also

- V2Fly offical Website & Documentation
- V2Ray Beginner's Guide
- Qv2ray official Website & Documentation[dead link 2023-05-06 ⓘ]

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