EV Observe - Configure a Proxy on a Box

Last modified on 2023/05/04 12:02

If a Box is installed on the network without direct access to the SaaS platform, you must configure a proxy to enable Internet access.

  • You can configure the proxy with or without authentication.
  • It will retrieve the configuration of the Box and establish the VPN link with the EV Observe platform.

Procedures

How to configure a proxy without authentication

Step 1: Configure the system

1. Run the commands below to configure and export the http_proxy and https_proxy environment variables.

Replace:

  • <proxy_server> with the IP address of the proxy server
  • <port> with the port of the proxy server

export http_proxy=http:/(% class="RedText_YellowBackground" %)<proxy_server>:<port>
export https_proxy=http://<proxy_server>:<port>

2. Enter the required information in the configuration file called /etc/apt/apt.conf.d/95proxies.

  • Open the configuration file.
  • Specify the information highlighted in yellow based on your environment.

Acquire::https::proxy "http://<proxy_server>:<port>/";
Acquire::http::proxy "http://<proxy_server>:<port>/";
Acquire::ftp::proxy "ftp://<proxy_server>:<port>/";

  • Save your modifications.

3. Enter the required information in the configuration file called /etc/environment.

  • Open the configuration file.
  • Specify the information highlighted in yellow based on your environment.
    Note: Check the domain names used in the /etc/hosts file. If required, add them in the NO_PROXY and no_proxy lines.

PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin"
http_proxy=http://<proxy_server>:<port>/
https_proxy=http://<proxy_server>:<port>/
ftp_proxy=http://<proxy_server>:<port>/
no_proxy="localhost,127.0.0.1,localaddress,.localdomain.com,.loc"
HTTP_PROXY=http://<proxy_server>:<port>/
HTTPS_PROXY=http://<proxy_server>:<port>/
FTP_PROXY=http://<proxy_server>:<port>/
NO_PROXY="localhost,127.0.0.1,localaddress,.localdomain.com,.loc"

  • Save your modifications.

4. Enter the required information in the configuration file called /etc/sysconfig/nagios.

  • Open the configuration file.
  • Specify the information highlighted in yellow based on your environment.
  • Add the lines below to the end of the file.
    Note: Check the domain names used in the /etc/hosts file. If required, add them in the NO_PROXY and no_proxy lines.

export http_proxy=http://<proxy_server>:<port>/
export https_proxy=http://<proxy_server>:<port>/
export ftp_proxy=http://<proxy_server>:<port>/
export no_proxy="localhost,127.0.0.1,localaddress,.localdomain.com,.loc"
export HTTP_PROXY=http://<proxy_server>:<port>/
export HTTPS_PROXY=http://<proxy_server>:<port>/
export FTP_PROXY=http://<proxy_server>:<port>/
export NO_PROXY="localhost,127.0.0.1,localaddress,.localdomain.com,.loc"

  • Save your modifications.
  • Run the commands below to restart nagios.

sudo su -
nagiosrestart

 

Step 2: Configure the OpenVPN service

1. Enter the required information in the configuration file called /etc/openvpn/client.conf.

  • Open the configuration file.
  • Uncomment by removing the hashtag # character from the http-proxy-retry and http-proxy lines.
  • Specify the information highlighted in yellow based on your environment.

http-proxy-retry
http-proxy <proxy_server>: <port>

  • Save your modifications.

2. Configure the Box.

     Open url.png See the procedure

How to configure a proxy with authentication

Step 1: Configure the system

1. Run the commands below to configure and export the http_proxy and https_proxy environment variables.

Replace:

  • <proxy_server> with the IP address of the proxy server
  • <port> with the port of the proxy server

export http_proxy=http://<proxy_server>:<port>
export https_proxy=http://<proxy_server>:<port>

2. Enter the required information in the configuration file called /etc/apt/apt.conf.d/95proxies.

  • Open the configuration file.
  • Specify the information highlighted in yellow based on your environment.

Acquire::https::proxy "http://<user>:<password>@<proxy_server>:<port>/";
Acquire::http::proxy "http://<user>:<password>@<proxy_server>:<port>/";
Acquire::ftp::proxy "ftp://<user>:<password>@<proxy_server>:<port>/";

  • Save your modifications.

3. Enter the required information in the configuration file called /etc/environment.

  • Open the configuration file.
  • Specify the information highlighted in yellow based on your environment.
    Note: Check the domain names used in the /etc/hosts file. If required, add them in the NO_PROXY and no_proxy lines.

PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin"
http_proxy=http://<user>:<password>@<proxy_server>:<port>/
https_proxy=http://<user>:<password>@<proxy_server>:<port>/
ftp_proxy=http://<user>:<password>@<proxy_server>:<port>/
no_proxy="localhost,127.0.0.1,localaddress,.localdomain.com,.loc"
HTTP_PROXY=http://<user>:<password>@<proxy_server>:<port>/
HTTPS_PROXY=http://<user>:<password>@<proxy_server>:<port>/
FTP_PROXY=http://<user>:<password>@<proxy_server>:<port>/
NO_PROXY="localhost,127.0.0.1,localaddress,.localdomain.com,.loc"

  • Save your modifications.

4. Enter the required information in the configuration file called /etc/sysconfig/nagios.

  • Open the configuration file.
  • Specify the information highlighted in yellow based on your environment.
  • Add the lines below to the end of the file.
    Note: Check the domain names used in the /etc/hosts file. If required, add them in the NO_PROXY and no_proxy lines.

export http_proxy=http://<user>:<password>@<proxy_server>:<port>/
export https_proxy=http://<user>:<password>@<proxy_server>:<port>/
export ftp_proxy=http://<user>:<password>@<proxy_server>:<port>/
export no_proxy="localhost,127.0.0.1,localaddress,.localdomain.com,.loc"
export HTTP_PROXY=http://<user>:<password>@<proxy_server>:<port>/
export HTTPS_PROXY=http://<user>:<password>@<proxy_server>:<port>/
export FTP_PROXY=http://<user>:<password>@<proxy_server>:<port>/
export NO_PROXY="localhost,127.0.0.1,localaddress,.localdomain.com,.loc"

  • Save your modifications.
  • Run the commands below to restart nagios.

sudo su -
nagiosrestart

 

Step 2: Configure the OpenVPN service

1. Run the commands below to create the environment variables.

export proxy_user=<user>export proxy_password=<password>

2. Create a configuration file to store the credentials for logging in to the proxy used by the OpenVPN client.

  • Run the command below to create the file.

vim /etc/openvpn/proxy.auth

  • Add the lines below.

<user>
<password>

  • Save your modifications.

3. Configure the Box using the vsb_installation.pl script.

     Open url.png See the procedure

4. Enter the required information in the configuration file called /etc/openvpn/client.conf.

  • Uncomment by removing the hashtag # character from the http-proxy-retry and http-proxy lines.
  • Specify the information highlighted in yellow based on your environment.

http-proxy-retry
http-proxy <proxy_server>: <port> /etc/openvpn/proxy.auth basic

  • Save your modifications.

5. Run the command below to restart the OpenVPN service.

service openvpn restart

6. Restart the Box.

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