On Friday, 31 October 2003, at 12:15:54 +0200,
The Codrinus wrote:
I would like to know if there is any possibility to select from iptables the
files with maximum size of 300 kbytes and send them to a proxy server.
As I know until now you can only mark files with maximum size of 64 kbytes.
iptables only knows about layer 2, 3 and 4. Files and their sizes is a
layer 7 thing, and depends entirely on the application protocol used to
transfer them (SMB, CIFS, NFS, FTP, HTTP, SSH, etc.).
So the short answer is no, you can't select packages based on file
sizes, it doesn't make any sense. But you obviously can select IP packages
based on their size (match length). However, remember that MTU in
normal layer 2 networks, typically ethernet, have a value of 1500 bytes,
so I think in normal conditions you will not see any packages larger
than that (except if you use jumboframes, FR or the like).
--
Jose Luis Domingo Lopez
Linux Registered User #189436 Debian Linux Sid (Linux 2.6.0-test9-mm1)
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