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03-24-2009, 05:16 PM
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ftp proxy limiting download speed
Even if i have the antivirus scanning turned off the speed with which i can use ftp is limited to around 320 KB/s per connection. For example, if I'm just downloading one file it max's out at 320 KBs/s. If I download two files simultaneously I can get the same speed for both (~320 KB/s). If i turn the ftp proxy off and add a packet filter rule i can download at my connection's full speed. What's the FTP proxy doing that limits downloading speed?
Last edited by wrallen; 03-25-2009 at 05:17 AM.
Reason: grammar
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03-24-2009, 05:44 PM
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What are your throughputs if you do single-scan anti-virus? If you turn off AV?
If turning off AV fixes the speed issue, then you can put in an exception to forego AV scanning for the host or add it to the Transparent mode skiplist.
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03-24-2009, 06:04 PM
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Those are the speeds with AV turned off. I was wondering what it's doing that limits the speed per connection even with AV turned off.
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03-24-2009, 06:23 PM
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I'd be interested to know if there's any slowdown when you are doing single- or double-scan with A-V.
What happens if you put the server into the transparent mode skiplist? Do you achieve the same result ans turning off the FTP proxy?
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03-24-2009, 06:32 PM
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Quote:
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What happens if you put the server into the transparent mode skiplist? Do you achieve the same result ans turning off the FTP proxy?
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same results
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03-24-2009, 06:48 PM
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Well, that's a relief, but now I'm left with the same question you started with: What can it possibly be spending its time on if AV is turned off?
If you have support, this would seem like an anomaly that Astaro would be interested in knowing about.
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03-24-2009, 07:45 PM
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Try turning off the IPS, or adding an exclusion, to test if that is limiting the speeds.
What CPU are you using?
Barry
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03-24-2009, 09:02 PM
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I was thinking about that, too, Barry, but wouldn't the traffic get processed by IPS even if the FTP proxy was disabled?
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03-24-2009, 09:10 PM
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Sure, but as I said, you can add an IPS exclusion if necessary.
I doubt it's the IPS though, unless the CPU is very slow.
Barry
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03-24-2009, 09:34 PM
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Quote:
Originally Posted by BarryG
Try turning off the IPS, or adding an exclusion, to test if that is limiting the speeds.
What CPU are you using?
Barry
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turning off IPS doesn't work, 3.2 GHz P4, 2 gigs of memory.
the only thing that seems to work is turning off the ftp proxy or adding the host to the ftp proxy skiplist.
the http/s proxy only takes off around 100 KB/s. the ftp proxy knocks off about 400 KB/s.
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