From: Lynx (lynx@enemy.org)
Date: Thu Mar 30 2006 - 17:12:11 EST
Hello!
I did an evaluation for sysadmin purposes of an Ironport gateway.
On Mar 30, 2006 at 1659 +0200, carlopmart appeared and said:
> somebody knows which software for MTA, anti-spam engine, etc IronPort
> use?. I find that antivirus is sophos.
Antivirus engine is Sophos. The MTA is their own. They developed an
high-performance MTA for AOL and use it in their appliances. The
antivirus engine is either Symantec Brightmail or again their own
antivirus engine.
> - AsyncOS kernel supports more than 10,000 simultaneous connections.
> Is this right? Linux and BSD kernels doesn't support this "feature"?
AsyncOS is vere capable and can handle such load. It depends on the
hardware though. AsyncOS is based on *BSD; Linux and *BSD can handle
similar loads if configured properly.
> - "IronPort also developed a high performance file system and an I/O
> driven scheduler optimized for the asynchronous nature of messaging". Is
> this high performance filesystem based on UFS2, ext3, reiser, ... etc or
> a new type of filesystem?
I have no information about their filesystem.
> - "For example, 1000 threads,each with a 1MB stack, would consume 1 GB
> of RAM! [...]" Really??
I think you might have to try it. I believe that the system uses load
limits when under pressure, but we didn't test that.
Best,
Lynx.
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