RH/CentOS network configurations

[theBlueSage]

On Tue, 2009-09-08 at 16:43 -0400, Jarod Wilson wrote:
> 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...

There are some subtle differences in configuring networks, and yes I am
using 3rd party (mysql.com cluster rpms).


> > Thank God I live in a state with good breweries !
> 
> Eh. Stuff is okay over here, I find both Washington and California  
> breweries better. :)

well, I'm also swayed by the fact that on the east coast there is much
greater access to UK (and especially Scottish) ale, and given that I am
an ex-pat Scot, that works for me :)


> 
> --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
> >>
> >>
> >>
> >> _______________________________________________
> >> Discuss mailing list
> >> Discuss-mNDKBlG2WHs at public.gmane.org
> >> http://lists.blu.org/mailman/listinfo/discuss
> >
> > _______________________________________________
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>