to Heaven says a
lot about anticipated traffic volume.
>-Original Message-
>From: NANOG [mailto:nanog-boun...@nanog.org] On Behalf Of Stephen
>Satchell
>Sent: Tuesday, 20 March, 2018 19:39
>To: nanog@nanog.org
>Subject: Fwd: RE: [EXT] Fwd: Re: problems sending to prodigy
ver farm. We had some, er, "interesting" denial of service attacks
that didn't do as much damage as they could have.
Forwarded Message
Subject: RE: [EXT] Fwd: Re: problems sending to prodigy.net hosted email
Date: Tue, 20 Mar 2018 17:15:25 +
From: Charles Bronson
On Tue 2018-Mar-20 17:15:25 +, Charles Bronson
wrote:
If this isn't pertinent to the list, feel free to answer privately. How did you
implement the server that got rid of ARP storms?
Perhaps something like an ARP sponge?
To: nanog@nanog.org
Subject: [EXT] Fwd: Re: problems sending to prodigy.net hosted email
Two DNS servers hosted on one box (or VM object), even with two addresses, is
easily compromised by DDoS amplification attacks. That's the norm for a number
of "web control panel" systems like Plesk
ot rid of ARP storms
in our network by putting up a little server called "ackbar", that was
configured to respond to all otherwise unused IP address in our pool.
(Edge routers were Cisco 7000 class, with DS3 uplinks.)
Lessons learned well.
Forwarded Message ----
Subject: Re: p
On 03/17/2018 02:04 PM, Chris wrote:
Stephen Satchell wrote:
(I know in my consulting practice I strongly discourage having ANY
other significant services on DNS servers. RADIUS and DHCP, ok, but
not mail or web. For CPanel and PLESK web boxes, have the NS records
point to a pair of
On Mon, 19 Mar 2018 11:56:16 -0400 (EDT)
C. Jon Larsen wrote:
> > Why not? Never had a problem with multiple services on linux, in
> > contrast to windows where every service requires its own box (or at
> > least vm).
>
> Go for it ! Failure is an awesome teacher :)
Don't really see a
On Sun, 11 Mar 2018 15:57:32 -0700
Stephen Satchell wrote:
(I know in my consulting practice I strongly discourage having ANY
other significant services on DNS servers. RADIUS and DHCP, ok, but
not mail or web. For CPanel and PLESK web boxes, have the NS records
point to a pair of
On Sun, 11 Mar 2018 15:57:32 -0700
Stephen Satchell wrote:
> (I know in my consulting practice I strongly discourage having ANY
> other significant services on DNS servers. RADIUS and DHCP, ok, but
> not mail or web. For CPanel and PLESK web boxes, have the NS records
> point to a pair of
On 03/09/2018 01:23 PM, Trey Nolen wrote:
We are having issues with domains hosted on prodigy.net email servers
including att.net, bellsouth.net, and scbglobal.net.
We are being rejected for bad reverse DNS, but DNS is setup correctly.
The error we are receiving is:
Remote host said: 550 5.7.1
We are having issues with domains hosted on prodigy.net email servers
including att.net, bellsouth.net, and scbglobal.net.
We are being rejected for bad reverse DNS, but DNS is setup correctly.
The error we are receiving is:
Remote host said: 550 5.7.1 Connections not accepted from servers
11 matches
Mail list logo