RH/CentOS network configurations

[jarod-ajLrJawYSntWk0Htik3J/w at public.gmane.org (Jarod Wilson)]

On Sep 8, 2009, at 2:17 PM, theBlueSage wrote:

> okay, scratch that, I figured out that pre-up sysctl -p simply  
> performed
> a /sbin/sysctl reread before bringing up the interface, si I have that
> set and now unnecessary.
> Having said that, if anyone has got good info/tutorials on how to use
> heartbeat/ldirectord in a Centos Environment I love to see them as  
> this
> is proving frustratingly undocumented. Centos, platypus-like as ever,
> may look like Red Hat, but Red Hat it is not, especially when it comes
> to LB/cluster work .. :(

Um... Unless you're using a bunch of CentOS Plus packages and/or 3rd- 
party repos, there shouldn't be any significant difference between  
using Red Hat Enterprise Linux and CentOS of the same versions...


> Thank God I live in a state with good breweries !

Eh. Stuff is okay over here, I find both Washington and California  
breweries better. :)

--jarod



> On Tue, 2009-09-08 at 12:06 -0400, theBlueSage wrote:
>> Hi All,
>>
>> I trying to configure heartbeat-ldirectord on a pair of Centos boxes
>> that form part of a mysql cluster. The cluster works and is totally
>> happy. I am just trying to load balance the two SQL servers (APIs)
>>
>> In the 'debian way' I can add the following line to a network
>> interface :
>>
>> #vi /etc/network/interfaces
>>
>> auto lo:0
>> iface lo:0 inet static
>>  address 10.6.1.75
>>  netmask 255.255.255.255
>>  pre-up sysctl -p > /dev/null
>>
>> however in RedHat/Centos when I edit the equivalent file and add  
>> the 'pre-up' line :
>>
>> #vi /etc/sysconfig/network-scripts/ifcfg-lo:0
>>
>>    DEVICE=lo:0
>>    IPADDR=10.6.1.75
>>    NETMASK=255.255.255.255
>>    NETWORK=10.6.1.0
>>    BROADCAST=10.6.1.255
>>    ONBOOT=yes
>>    pre-up sysctl -p > /dev/null
>>
>>
>> I get a 'command not found' ....
>>
>> IS there a way to do the pre-up in RH/Centos ?
>>
>> I also apologize in advance to the RedHat folks for lumping CentOS  
>> in with them. I have to use
>> it at work (at home I am a Debian fan) and although it is 'code  
>> from the upstream provider' it
>> doesnt always act in the same way as 'code from the upstream  
>> provider'. Also, RedHat docs don't
>> always apply to CentOS setups, and CentOs docs dont .... well they  
>> just dont, really.
>>
>> in hope,
>>
>> Richard
>>
>>
>>
>> _______________________________________________
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>> http://lists.blu.org/mailman/listinfo/discuss
>
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-- 
Jarod Wilson
jarod-ajLrJawYSntWk0Htik3J/w at public.gmane.org