NC_Net v2.15 - New Version (with Perfomance counter FIX)
Andreas Ericsson
ae at op5.se
Fri Feb 11 10:10:05 CET 2005
Anthony Montibello wrote:
> The CONFIG command in NC_Net - is only capable of changing NC_Net
> parameters that were initially set durring the parsing of the
> startup.cfg.
>
> This feature was added primarily as a mechanism for testing NC_Net, as
> well as giving it a mechanism for changing certain variables durring
> the setup phase of a new Host. For instance if the Host name of the
> Windows server was to change in Nagios Config, this command would
> enable a mechanism for pushing the change to NC_Net via an active
> check. Another use of CONFIG command is if the address or port of
> either passive or active checks was to be changed. This may happen in
> a distributed nagios environment. Also, NC_Net can be configured at
> startup to reject these commands.
>
> I am not sure how I would be able to add non-plaintext authentication
> scheme to this command at this time. How would this be implemented
> into check_nt? because check_NT uses plain only.
>
But nsca is able to select from a wide range of different ciphers. It
wouldn't be an overwhelming feat to add that same sort of encryption to
check_nt (although a bit timeconsuming).
> I do understand the concerns about random host reconfiguration, but I
> have also had requests for minimizing the necessity of logging onto
> the windows host once NC_Net has been installed. besides, I had a need
> for changing configuration dynamically and I added the capabilities of
> this command for my own testing using the test console tool. I
> figured I might as well make the command available via Check_nt as
> well.
> The lock_active_config parameter was added to help with this balance.
> NC_Net will reject any NC_Net reconfiguration command sent via active
> check port if lock_actice_config is set to true. I will make sure in
> future releases of NC_Net that this option is set by default so that
> NC_Net system config changes via check_nt are locked out unless this
> option is explicitly changed in the startup.cfg of the NC_Net or
> locally via passive.cfg.
Sound thinking.
> -- passive.cfg also has a lock parameter that
> will remain false (open) in the startup, allowing for NC_Net config
> changes by adding to the passive.cfg.
>
> The next enhancement that was going to be implemented was the ability
> to push new passive check commands into NC_Net passive check queue
> (the passive check queue is actually the passive.cfg file). So
> basically using check_Nt and a new option added to the service
> check, Check_nt would send the check to be added to the passive check
> queue instead of running the check as an active check.
>
> Thanks you for the comments.
> Tony
>
> On Thu, 10 Feb 2005 19:50:05 +0100, Andreas Ericsson <ae at op5.se> wrote:
>
>>>Check_Nt - with NC_Net enhancements included with NC_Net has had
>>>CONFIG command added.
>>
>>I suppose you've thought about adding some sort of non-plaintext
>>authentication scheme for this. The idea of random hosts reconfiguring
>>even the smallest thing really doesn't feel all too good.
>>
>>--
>>Andreas Ericsson andreas.ericsson at op5.se
>>OP5 AB www.op5.se
>>Lead Developer
>>
>
>
>
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--
Andreas Ericsson andreas.ericsson at op5.se
OP5 AB www.op5.se
Lead Developer
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