It's logging that's been put in to support fail2ban (http://www.fail2ban.org/). It watches your logs for anyone attempting to access your server who shouldn't be (trying to guess passwords, DOS your server etc) and blocking their IP. It's really only an Info message, but logs as warning so that you still get the messages fail2ban needs if you're only logging errors of warning level or higher. It's nothing to be concerned about.

If you want to, use fail2ban. If you don't you can either ignore those messages or set log-auth-failures to false on the SIP profile to stop logging them.

-Steve



On 5 August 2011 17:47, cogs66 <cogs66@gmail.com> wrote:
Hi

Thanks for your reply

The errors are coming from extensions I have registered. All works fine, I
just see these error every few mins.

Andy

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