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ftp_conntrack and encrypted FTP

DISCUSSION Leonardo Rodrigues Magalhães 4 participants 4 messages Nov 9, 2007

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Hello Guys,

I'm having some troubles with encrypted FTP connections. As i could
imagine, conntrack_ftp and nat_ftp are not being able of recognizing the correct ports to open because the connection is encrypted and the PASV information is not seen by the modules.

I dont think so ..... but is there any way of working around this ??

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	Leonardo Rodrigues
	Solutti Tecnologia
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#1 lore raw
Quoted 8 lines · Leonardo Rodrigues Magalhães

Hello Guys,

I'm having some troubles with encrypted FTP connections. As i could
imagine, conntrack_ftp and nat_ftp are not being able of recognizing the correct ports to open because the connection is encrypted and the PASV information is not seen by the modules.

I dont think so ..... but is there any way of working around this ??

Use unencrypted ftp (which is insecure and not recommended) or forget conntrack for this because encrypted channels cannot be on the fly decrypted without the keys used for encryption.

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Attila
#2 lore raw
In reply to Leonardo Rodrigues Magalhães
Quoted 8 lines · Leonardo Rodrigues Magalhães

Hello Guys,

I'm having some troubles with encrypted FTP connections. As i could
imagine, conntrack_ftp and nat_ftp are not being able of recognizing the correct ports to open because the connection is encrypted and the PASV information is not seen by the modules.

I dont think so ..... but is there any way of working around this ??

Use scp instead.

HTH
M4

#3 lore raw

В Птн, 09/11/2007 в 14:09 +0100, Martijn Lievaart пишет:

Quoted 9 lines
Quoted 8 lines · Leonardo Rodrigues Magalhães

Hello Guys,

I'm having some troubles with encrypted FTP connections. As i could
imagine, conntrack_ftp and nat_ftp are not being able of recognizing the correct ports to open because the connection is encrypted and the PASV information is not seen by the modules.

Quoted 4 lines
Quoted 2 lines

I dont think so ..... but is there any way of working around this ??

Use scp instead.

FTP dies.

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