初次配置

# 添加用户组
groupadd "s5proxy"

# openssh限制
cat >> /etc/ssh/sshd_config <<'EOF'

Match Group s5proxy
    PasswordAuthentication yes
    PubkeyAuthentication no
    AllowTcpForwarding local
    PermitTTY no
    X11Forwarding no
    AllowAgentForwarding no
EOF

# 重启openssh

添加用户

# 创建用户
useradd -g "s5proxy" -M -d /nonexistent -s /usr/sbin/nologin "john"

# 设置密码
echo "john:johnpassword" | chpasswd