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Installing XTLS on Linux

XTLS protocol, providing a set of network tools such as Xray-core and REALITY.

Installing on server

Protect your server with iptables

# replacing <HOME-IP-ADDRESS>
iptables -A INPUT -i lo -j ACCEPT
iptables -A INPUT -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
iptables -A INPUT -p icmp -j ACCEPT
iptables -A INPUT -p tcp --dport 22 -s <HOME-IP-ADDRESS> -j ACCEPT
iptables -A INPUT -p tcp --dport 22 -j DROP
iptables -A INPUT -p tcp --dport 80 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j ACCEPT
iptables -P INPUT DROP

ip6tables -A INPUT -i lo -j ACCEPT
ip6tables -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
ip6tables -A INPUT -p ipv6-icmp -j ACCEPT
ip6tables -P INPUT DROP

# Make the iptables rules permanent
sudo apt install iptables-persistent

Setting kernel for performance and raise ulimits

# performance
sudo cat <<EOF > /etc/sysctl.d/xray-sysctl.conf
net.ipv4.tcp_keepalive_time = 90
net.ipv4.ip_local_port_range = 1024 65535
net.ipv4.tcp_fastopen = 3
net.core.default_qdisc=fq
net.ipv4.tcp_congestion_control=bbr
fs.file-max = 65535000
EOF
# ulimits
sudo cat <<EOF > /etc/security/limits.d/xray-limit.conf
* soft     nproc          655350
* hard     nproc          655350
* soft     nofile         655350
* hard     nofile         655350
root soft     nproc          655350
root hard     nproc          655350
root soft     nofile         655350
root hard     nofile         655350
EOF

sudo sysctl --system

Install Xray

sudo apt update && Sudo apt upgrade

# bash -c "$(curl -L https://github.com/XTLS/Xray-install/raw/main/install-release.sh)" @ install -u root --version 1.8.1

curl -fsSLO https://github.com/XTLS/Xray-install/raw/main/install-release.sh
sudo chmod u+x ./install-release.sh

# Showing Help
sudo ./install-release.sh help

# Install Xray version 1.8.1 to run as root
sudo ./install-release.sh install -u root --version 1.8.1

## Removing Xray
sudo ./install-release.sh remove --purge 

# Generate parameters
# UUID
xray uuid -i Secret
# Private and Public keys
xray x25519
# short ID
openssl rand -hex 8

Determining camouflage website

  • Be a foreign website
  • Support TLSv1.3 and H2
  • Have a URL that is not redirected elsewhere (though the apex domain name may be redirected to www)
  • Bonus points if it has a similar IP to your server

Adding Xray server's config

You can see some Xray-examples of server config.json for Xray-core.

Download config.json and edit params like as below:

{
   //...
    "inbounds": [
        {
            "listen": "0.0.0.0",  // "0.0.0.0" Indicates listening to both IPv4 and IPv6
            "port": 443, // The port on which the server listens
            "protocol": "vless",
            "settings": {
                "clients": [
                    {
                        "id": "EDIT-UUID", // Your generated UUID here.
                        "flow": "xtls-rprx-vision"
                    }
                ],
                "decryption": "none"
            },
            "streamSettings": {
                "network": "tcp",
                "security": "reality",
                "realitySettings": {
                    "show": false,
                    "dest": "EDIT-DEST", // ex: www.microsoft.com:443
                    "xver": 0,
                    "serverNames": [
                        "EDIT-SERVERNAME" //ex: www.microsoft.com
                    ],
                    "privateKey": "EDIT-PRIVATEKEY", // Private key you generated earlier.
                    "minClientVer": "",
                    "maxClientVer": "",
                    "maxTimeDiff": 0,
                    "shortIds": [
                        "EDIT-SHORTID" // Short ID
                    ]
                }
            },
            "sniffing": {
                "enabled": true,
                "destOverride": [
                    "http",
                    "tls"
                ]
            }
        }
    ],
        
  //...
}

after that save in /usr/local/etc/xray/config.json

Enabling and starting the Xray service

sudo systemctl daemon-reload && sudo systemctl enable xray
sudo systemctl start xray && sudo systemctl status xray
# show logs
journalctl -u xray | less

Multi-file configuration

mkdir -p /usr/local/etc/xray/confs
mv /usr/local/etc/xray/config.json /usr/local/etc/xray/confs/config.json 

sudo vi /etc/systemd/system/xray.service
# changing below line
# ExecStart=/usr/local/bin/xray run -config /usr/local/etc/xray/config.json
ExecStart=/usr/local/bin/xray run -confdir /usr/local/etc/xray/confs

sudo rm -r /etc/systemd/system/xray.service.d

sudo systemctl daemon-reload && sudo systemctl restart xray
sudo systemctl status xray

systemd-delta

Installing on client

Adding xray-core

curl -fsSLO https://github.com/XTLS/Xray-core/releases/download/v1.8.1/Xray-linux-64.zip
sudo unzip ./Xray-linux-64.zip  -d /usr/local/bin/xray
sudo cd /usr/local/bin/xray
curl -fsSLo config.json https://raw.githubusercontent.com/mehradi-github/ref-xtls/main/configs/client-config.json

Editing Xray's config

Edit the params of config.json like as below:

{
//...
"outbounds": [
        {
            "protocol": "vless",
            "settings": {
                "vnext": [
                    {
                        "address": "EDIT-ADDRESS", // IP server or DNS
                        "port": 443,
                        "users": [
                            {
                                "id": "EDIT-UUID", // Your generated UUID here.
                                "flow": "xtls-rprx-vision",
                                "encryption": "none"
                            }
                        ]
                    }
                ]
            },
            "streamSettings": {
                "network": "tcp",
                "security": "reality",
                "realitySettings": {
                    "show": false,
                    "fingerprint": "chrome",
                    "serverName": "EDIT-SERVERNAME", //ex: www.microsoft.com
                    "publicKey": "EDIT-PUPLICKEY",  // Public key you generated earlier.
                    "shortId": "EDIT-SHORTID", // Short ID
                    "spiderX": "/"
                }
            },
            "tag": "proxy"
        },
        {
            "protocol": "freedom",
            "tag": "direct"
        },
        {
            "protocol": "blackhole",
            "tag": "block"
        }
    ]

//...
}

Installing Go

You can see more details for installing go.

go version

Running xray

sudo cd /usr/local/bin/xray
sudo chmod +x ./xray

# Changing USERNAME
sudo cat <<EOF > /etc/systemd/system/xray.service
[Unit]
Description=XTLS Xray-Core a VMESS/VLESS Client
After=network.target nss-lookup.target
[Service]
User=USERNAME
Group=USERNAME
CapabilityBoundingSet=CAP_NET_ADMIN CAP_NET_BIND_SERVICE
AmbientCapabilities=CAP_NET_ADMIN CAP_NET_BIND_SERVICE
NoNewPrivileges=true
ExecStart=/usr/local/bin/xray/xray run -config /usr/local/bin/xray/config.json
Restart=on-failure
RestartPreventExitStatus=23
StandardOutput=journal
LimitNPROC=100000
LimitNOFILE=1000000
[Install]
WantedBy=multi-user.target
EOF

sudo systemctl daemon-reload && sudo systemctl enable xray
sudo systemctl start xray 
sudo systemctl status xray

# ./xray run -c ./config.json

Setting proxy

export no_proxy=localhost,127.0.0.0/8,::1
export ftp_proxy=http://127.0.0.1:8889/
export https_proxy=http://127.0.0.1:8889/
export NO_PROXY=localhost,127.0.0.0/8,::1
export FTP_PROXY=http://127.0.0.1:8889/
export HTTPS_PROXY=http://127.0.0.1:8889/
export HTTP_PROXY=http://127.0.0.1:8889/
export http_proxy=http://127.0.0.1:8889/
export ALL_PROXY=socks5://127.0.0.1:1089/
export all_proxy=socks5://127.0.0.1:1089/