Openvas9的Nginx代理

我已经安装了openvas9，并且已经从一个证书商店安装了证书。然后我尝试使用nginx作为反向代理。我的openvas设置位于

/etc/default/openvas gsa

，如下所示

# Defaults for Greenbone Security Assistant initscript
# sourced by /etc/init.d/openvas-gsa
# installed at /etc/default/openvas-gsa by the maintainer scripts

# To disable HTTPS:
#
#HTTP_ONLY=1

# To enable http redirection:
#
HTTP_REDIRECT=1

# To set listening address:
# 
#LISTEN_ADDRESS="0.0.0.0"

# To set listening port number:
#
PORT_NUMBER=4000

我在

/etc/nginx/sites enabled/openvas

中的nginx配置如下所示（服务器名称明显更改）

我只得到一个

502坏网关

。我哪里做错了

server {
       listen         80;
       server_name    vas.novarumcloud.com;
       return         301 https://$server_name$request_uri;
}

server {
    listen 443 ssl;
    server_name vas.novarumcloud.com;

    location / {
        proxy_set_header   Host             $http_host;
        proxy_set_header   X-Real-IP        $remote_addr;
        proxy_set_header   REMOTE_HOST      $remote_addr;
        proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;
        proxy_set_header   X-FORWARDED-PROTOCOL $scheme;  
        proxy_pass https://localhost:4000;
    }
}

但是，您还需要转到

/etc/default/openvas gsa

并具有如下设置

# Defaults for Greenbone Security Assistant initscript
# sourced by /etc/init.d/openvas-gsa
# installed at /etc/default/openvas-gsa by the maintainer scripts

# To disable HTTPS:
#
#HTTP_ONLY=1

# To enable http redirection:
#
HTTP_REDIRECT=1

# To set listening address:
# 
#LISTEN_ADDRESS="0.0.0.0"

# To set listening port number:
#
PORT_NUMBER=4000

---

我还添加了

ALLOW\u HEADER\u HOST=openvas.mydomain.com

以避免出现如下错误：

gsad main:WARNING:2018-08-23 08h33.16 utc:13346:MHD:Error:received handshake message out of context

# Defaults for Greenbone Security Assistant initscript
# sourced by /etc/init.d/openvas-gsa
# installed at /etc/default/openvas-gsa by the maintainer scripts

# To disable HTTPS:
#
#HTTP_ONLY=1

# To enable http redirection:
#
HTTP_REDIRECT=1

# To set listening address:
# 
#LISTEN_ADDRESS="0.0.0.0"

# To set listening port number:
#
PORT_NUMBER=4000