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My Client, who has been using ClearOS for many years, has suffered a problem that I am at a loss to resolve.

They have just decided to change from an internal Mail Server to using Office 365 on the Cloud. They were experiencing problems with accessing Microsoft Online and were (on my instructions) putting exemptions in various places in their ClearOS.

At some point, they locked themselves out completely and decided to restart the system with a the "big red switch". Upon restart they had no access to the internet or any facilities. After diagnosis we discovered the following strange phenomenon.

The Protocol Filter which had been behaving perfectly had changed its behaviour to the point that setting just one Block, for example a Ninja Block in the Group Worms/Viruses set a block on everything. The icons behave correctly - eg. only the Ninja Block is Green, but the Protocol Filter service does not - it appears as though (in the words of the 4 Musketeers) "all for one and one for all".

Does anyone have any idea how and where to diagnose and repair this problem at command line level??

Failing that I am going to have to rebuild the system, which I am loathe to do.
Tuesday, April 30 2013, 11:07 AM
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    Tuesday, April 30 2013, 09:14 PM - #Permalink
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    I would just disable the Protocol Filter. There are just too many error/crash reports floating around (it's no longer available through Marketplace). To really get rid of it:

    yum remove l7-filter-userspace
    service firewall restart

    The same version of the software runs flawlessly on version 5, so we're guessing that there's some kind of kernel/library/API mismatch going on in ClearOS 6. One of the ClearCenter developers is in the process of re-engineering l7-filter:

    - IPv6 support
    - Hooks to
    - Stability!
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