使用一键脚本安装  
curl -O [https://raw.githubusercontent.com/atrandys/trojan/master/trojan_centos7.sh](https://raw.githubusercontent.com/atrandys/trojan/master/trojan_centos7.sh) && chmod +x trojan_centos7.sh && ./trojan_centos7.sh  
另外建议安装bbr，以下脚本安装，不赘述了  
cd /usr/src && wget -N --no-check-certificate "[https://raw.githubusercontent.com/chiakge/Linux-NetSpeed/master/tcp.sh](https://raw.githubusercontent.com/chiakge/Linux-NetSpeed/master/tcp.sh)" && chmod +x tcp.sh && ./tcp.sh