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Why does "Disable FTP" lead to frequent proxy crashes on my Barracuda NG Firewall?

  • Type: Knowledgebase
  • Date changed: 2 years ago
Solution  #00005276

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:

After setting Config > Box > Virtual Servers > <Servername> > Assigned Services > <Servicename> > HTTP-Proxy-Settings > General > "Disable FTP" to "no" the proxy may crash with lines like this:

Internal     +0100        [2810041] starting FTP scanning feature....
Internal     +0100        [2810041] Squid Parent[18457]: FTP scanning feature initialized
Notice        +0100        [2810043] --used resources of terminated child[18625]--
Notice        +0100        [2810043] user time used[18625]: 0.010000 s
Notice        +0100        [2810043] system time used[18625]: 0.000000 s
Notice        +0100        [2810043] page reclaims[18625]: 766.134747047 s
Notice        +0100        [2810043] page faults[18625]: 518.134747047 s
Warning     +0100        [2810042] FTP service may terminated abnormally
Internal      +0100        [2810041] looking for FTP failure..
Internal      +0100        [2810041] looking for additional FTP failures..

The FTP-Service needs a bind to 127.0.0.1:<TCP Listening Port>.


  1. Navigate to Config > Box > Virtual Servers > <Servername> > Assigned Services > <Servicename> > HTTP-Proxy-Settings > Network.
  2. If you are using port 80 in HTTP you will need to change the setting. You cannot enable FTP-Service on more than one proxy.


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