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Barracuda NextGen Firewall X

What is my Barracuda NG Firewall having trouble resolving URLs while using HTTP proxy?

  • Type: Knowledgebase
  • Date changed: 5 months ago
Solution #00005196 
 
Scope:
This solution replies to:
- NG Firewall firmware versions 4.2.x, 5.0.x, 5.2.x
- netfence firmware versions 4.2.x

Answer:

The Proxy needs a DNS-Server to resolve the URLs. There are 2 ways to configure a DNS-Server for the Proxy-Service.

 

Configure the DNS-Server in the Box-Settings:

  1. Navigate to Config > Box > Administrative Settings > DNS Settings
  2. Set a DNS-Server in the DNS Server IP list.
  3. Set the option in Run Forwarding/Caching DNS Config to No.

  4. Restart the Proxy-Service.

 

Configure the DNS-Server in the advanced configuration of the proxy:

This option should only be used if the proxy will use another DNS-Server as the box itself.

  1. Navigate to Config > Box > Virtual Servers > <Servername> > Assigned Services > <Servicename> > HTTP Proxy Settings > Advanced
  2. Set the option dns_nameservers.
    1. dns_nameservers 192.168.10.1
  3. Navigate to Config > Box > Administrative Settings > DNS Settings.
  4. Set the option in Run Forwarding/Caching DNS Config to No.
  5. Restart the Proxy-Service.


Link to This Page:
https://campus.barracuda.com/solution/50160000000IKZpAAO