Re: [webmin-devel] Webmin feature enhancement idea to recover from mistakes

[Andrew K. <ak...@co...>]

I thought your idea was to have a configuration that would test the 
network (ping or something)
on a pre-defined IP and if after a certain period roll-back the changes. 
This would bring back
the network (assuming the previous config is correct).

-Andrew

Jamie Cameron wrote:

>I haven't been doing any development in that area yet unfortunately..
>However, the ideas I have planned wouldn't really help you either, as an
>error that cuts off access to Webmin would prevent you from hitting the
>'undo' button to fix it!
>
> - Jamie
>
>On Tue, 2004-03-30 at 09:25, Andrew Kornak wrote:
>  
>
>>Jamie,
>>
>>    I did it again! I messed up the network settings and lost my server!
>>Are there any plans to add the "revert network settings for idiots"
>>feature any time soon? I am running out of excuses for my screw-ups! ;-)
>>Thanks.
>>
>>-Andrew
>>
>>Jamie Cameron wrote:
>>
>>    
>>
>>>Andrew Kornak wrote:
>>>
>>>      
>>>
>>>>I recently had the misfortune of making a mistake in my network settings
>>>>which in turn had the effect of disconnecting me from my server which is
>>>>at a remote location. Eventually someone was able to manually come in
>>>>and correct my mistake, but, it occurred to me that a possible 
>>>>soution to
>>>>this kind of problem would be to have a mechanism by which changes
>>>>are not permanent unless they are confirmed through a transparent
>>>>webmin confirmation process. By this I mean, when a change is made
>>>>it would revert to a previous setting unless one where to confirm by
>>>>logging in again or by clicking a confirm setting when you login again.
>>>>So, say I make a drastic mistake in my network configuration. The 
>>>>setting
>>>>is made, the network restarts, I lose the connection! Ofcourse, if I 
>>>>have
>>>>no connection, I cannot confirm, thus my ass is saved!! Hurray!! The
>>>>confirmation might be an interval set by the user. It could be a 10 
>>>>minute
>>>>default
>>>>or something. I know that webmin has a caching mechanism built in,
>>>>perhaps this would be something like that where it would be used to
>>>>recover from a mistake? Perhaps this would be useful in other modules
>>>>as well. Perhaps you might lose you web server or database or something.
>>>>I don't know, would this be feasible? I can't be the only one that makes
>>>>this
>>>>kind of mistake. Since this interface is so dependent on a functioning
>>>>network, perhaps it would be useful? It could also be an optional 
>>>>feature
>>>>only. A feature that might save someone from losing their job! Just a
>>>>thought.
>>>>        
>>>>
>>>Perhaps what is needed is a feature in the Network Configuration 
>>>module for testing connectivity after changes are applied, and rolling 
>>> the changes back if the network appears to be down. The test could be 
>>>performed by pinging some external host, defined in the module's 
>>>configuration .. and the rollback done by saving the state of all 
>>>interfaces and routes before applying changes, and restoring them if 
>>>something went wrong.
>>>
>>>Implementing it could be a little tricky, but it is worth doing (since 
>>>I've had the same problems myself!), so I will see about adding it to 
>>>a future release.
>>>
>>> - Jamie
>>>
>>>
>>>
>>>
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