gpg: Signature made Mon Jul 7 14:24:58 2014 UTC
gpg: using DSA key 2099B64CBF15490B
gpg: Good signature from "Andy Smith <andy@strugglers.net>" [unknown]
gpg: aka "Andrew James Smith <andy@strugglers.net>" [unknown]
gpg: aka "Andy Smith (UKUUG) <andy.smith@ukuug.org>" [unknown]
gpg: aka "Andy Smith (BitFolk Ltd.) <andy@bitfolk.com>" [unknown]
gpg: aka "Andy Smith (Linux User Groups UK) <andy@lug.org.uk>" [unknown]
gpg: aka "Andy Smith (Cernio Technology Cooperative) <andy.smith@cernio.com>" [unknown]
Hi Paul,
On Mon, Jul 07, 2014 at 02:01:11PM +0100, Paul Stimpson wrote:
> I'm not sure if there is a problem but for the last couple of months,
> I've been seeing about 1 NAGIOS alert a week and various VPN problems
> that seems to say that there may be intermittent connectivity issues
> within the cluster.
Possibly, but:
> I'm seeing SSH warnings most commonly that my VOS is uncontactable
> even though I was logged in during some of them.
I see SSH alerts all the time across all VPSes that have monitoring
enabled. This appears to be due to slow SSH dictionary attacks
filling up all MaxStartups slots:
http://crunchtools.com/systems-administrators-lab-openssh-maxstartups/
I suspect if you put sshd on a different port or increase
MaxStartups then that issue will go away.
> I had a 10 hour backup file age NAGIOS warning today.
In the early hours of this morning a single customer VPS which was
in an OOM death spiral made the backup system get stuck on it and no
one else's backups (for that schedule on that backup server, which
is about 10 of you, including you) got done after that.
I got the process unstuck about an hour ago and so RECOVERY notices
will be arriving now for those affected.
> I've also recently seen my VPN dropping out much more frequently
> than usual.
This I do not know about.
Cheers,
Andy
--
http://bitfolk.com/ -- No-nonsense VPS hosting
> I'd be interested to hear any (even two word) reviews of their sofas…
Provides seating.
— Andy Davidson
