Re: ****Re: ****Re: simple question with home serviing ruby on rails web site

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Craig White wrote:
> On Mon, 2008-06-16 at 13:29 +0100, Paul Howarth wrote:
>> Craig White wrote:
>>> On Mon, 2008-06-16 at 11:39 +0100, Paul Howarth wrote:
>>>> Craig White wrote:
>>>>> On Sat, 2008-06-14 at 16:51 +0100, Paul Howarth wrote:
>>>>>> On Sat, 14 Jun 2008 08:05:56 -0700
>>>>>> Craig White <craigwhite@xxxxxxxxxxx> wrote:
>>>>> I'm a bit confused myself because in essence, httpd is just a proxy to
>>>>> the ruby/rails 'mongrel' which is a http server in ruby running the ruby
>>>>> processes and is providing dhtml on higher ports as the user.
>>>>>
>>>>> FWIW...httpd runs as user 'apache' (as ususal)
>>>>>     mongrels run as regular 'user' (me)
>>>>>     all files and folders inside the subdirectory we are discussing...
>>>>>     (/home/craig/svn-new) are owned by me (not root, not apache)
>>>> The conventional unix ownership and permissions make very little 
>>>> difference as far as SELinux is concerned, so although you need to get 
>>>> them right, they're not going to affect the file contexts needed.
>>>>
>>>> What context is mongrels running in (try the -Z option of ps)? How does 
>>>> that process get started (via an initscript?)?
>>> ----
>>> yes, a SysV initscript...(running 2 mongrels at present... port & pid
>>> #'s 3000 & 3001)
>>>
>>> # ps auxZ|grep mongrel
>>> unconfined_u:unconfined_r:unconfined_t:SystemLow-SystemHigh root 7079
>>> 0.0  0.0 4120 732 pts/6 S+ 05:02   0:00 grep mongrel
>>> root:unconfined_r:unconfined_t:-s0:c0.c255 craig 27313 0.0  3.0 45068
>>> 30164 ?  Sl   Jun15   0:10 /usr/bin/ruby /usr/bin/mongrel_rails start -d
>>> -e development -a 127.0.0.1 -c /home/craig/svn-new/th-db/branches/phase5
>>> --user craig --group craig -p 3000 -P log/mongrel.3000.pid -l
>>> log/mongrel.3000.log
>>> root:unconfined_r:unconfined_t:-s0:c0.c255 craig 27316 0.0  2.9 45052
>>> 29468 ?  Sl   Jun15   0:10 /usr/bin/ruby /usr/bin/mongrel_rails start -d
>>> -e development -a 127.0.0.1 -c /home/craig/svn-new/th-db/branches/phase5
>>> --user craig --group craig -p 3001 -P log/mongrel.3001.pid -l
>>> log/mongrel.3001.log
>>> ----
>> OK, so they're running as unconfined_t at the moment.
>>
>>> I could conceivably run the mongrels as user 'apache' except that the
>>> permissions on some of the folders would have to be changed because
>>> there are some directories that files are written into by the ruby web
>>> server...so I try to just run as user.
>> Don't change anything about the regular Unix permissions at the moment; 
>> I guess that for a production server you'd create a separate account for 
>> the Ruby stuff to run as.
>>
>> What would be an interesting experiment would be to run the Ruby stuff 
>> in the same SELinux context as httpd. Try changing the context type of 
>> /usr/bin/mongrel_rails to httpd_exec_t and restart the services.
>>
>> # chcon -t httpd_exec_t /usr/bin/mongrel_rails
>>
>> I'm not sure whether this will make things better or worse but it should 
>> eliminate some problems for the two httpd-like bits talking to each other.
> ----
> that seems to have cleared things up - I had to restart both
> mongrel_cluster service and then the httpd service - I did get an error
> the first time through but subsequent restarts seems to have cleared it
> up.
> 
> Thanks
> 
> Craig
> 
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Is this the correct context for mongrel_rails?  IE Is this basically a
http web server?  How does it get started on boot?

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