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Valdis Kletnieks <[log in to unmask]>
Fri, 31 May 2002 09:24:29 -0400
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On Fri, 31 May 2002 14:25:41 +1000, "Barzyk, John" <[log in to unmask]>  said:

>         When I manually tried the  "update now"  tab to download the latest
> signatures from FSecure , the operation timed out.

Hmm.. a virus-scanning firewall is blocking it because the signatures contain
things that match virus signatures? ;)

One thing that *might* be an issue if you're trying to download to a Linux
system is that some sites have problems with ECN (Explicit Congestion
Notification).

Information on the problem:

http://gtf.org/garzik/ecn/

I run with ECN enabled on the laptop I'm writing this from - some web servers
are behind ECN-broken firewalls, and this is a quick workaround:

echo 0 > /proc/sys/net/ipv4/tcp_ecn

If this magically makes the machine reachable, then at least you know what
the problem is.

Unfortunately, even with ECN on, I *am* able to reach www.fsecure.com just
fine, so unless updates come from another box that has an ECN problem,
there's something else wrong where you are...

--
                                Valdis Kletnieks
                                Computer Systems Senior Engineer
                                Virginia Tech

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