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Hello: I am interested in learning about configuring load balancing without a load balancer, now that IPTables includes support for this. It's hard to find easy-to-follow intructions about it, the netfilter how-to does not help me too much (because of my limited experience with iptables and networking concepts) I wonder if someone has already experimented with ClusterIP and can share his/her scripts? Is there a SuSE-specific config file to setup clusterIP nodes? Could not find anything on Yast2/FireWall module. BTW, it would be nice to have a config option for this in yast2. I already looked into a very nice software called "balancer", which is an open source TCP proxy, very easy to configure, but I suspect that an IPTable-based solution could be much faster, right? I would appreciate comments on this if it is not the case. Thank you, Martin -- Dinamica - Open source J2EE framework Free, easy and powerful http://www.martincordova.com
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Martin Cordova wrote:
I am interested in learning about configuring load balancing without a load balancer, now that IPTables includes support for this. It's hard to find easy-to-follow intructions about it, the netfilter how-to does not help me too much (because of my limited experience with iptables and networking concepts)
iptables has actually had it for a while - I played with it last year I believe. It works perfectly well when you're only after round-robin style load distribution (there's no balancing involved). However, if you need to maintain sessions once established, iptables load distribution is not for you.
I already looked into a very nice software called "balancer", which is
Have you looked at http://www.linuxvirtualserver.org/ at all? /Per Jessen, Zürich -- http://www.spamchek.de/ - managed anti-spam and anti-virus solution. Sign up for your free 30-day trial now!
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Yes I did, do you know if OpenSuSE kernel includes ipvs support? To be honest, I was looking for something very easy to setup (and understand), somewhere I read that ClusterIP was kind of a "new wave", a recent addition. Thanks for the reply, regards, Martin. On 10/31/05, Per Jessen <per@computer.org> wrote:
Martin Cordova wrote:
I am interested in learning about configuring load balancing without a load balancer, now that IPTables includes support for this. It's hard to find easy-to-follow intructions about it, the netfilter how-to does not help me too much (because of my limited experience with iptables and networking concepts)
iptables has actually had it for a while - I played with it last year I believe. It works perfectly well when you're only after round-robin style load distribution (there's no balancing involved). However, if you need to maintain sessions once established, iptables load distribution is not for you.
I already looked into a very nice software called "balancer", which is
Have you looked at http://www.linuxvirtualserver.org/ at all?
/Per Jessen, Zürich
-- http://www.spamchek.de/ - managed anti-spam and anti-virus solution. Sign up for your free 30-day trial now!
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-- Dinamica - Open source J2EE framework Free, easy and powerful http://www.martincordova.com
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Martin Cordova wrote:
Yes I did, do you know if OpenSuSE kernel includes ipvs support? To be honest, I was looking for something very easy to setup (and understand), somewhere I read that ClusterIP was kind of a "new wave", a recent addition.
Ah, yes, I think you're right - ClusterIP _is_ new. The method I was talking about is DNAT'ing to a range of IPs : iptables -A FORWARD -p tcp --dport x -d 192.168.2.1-192.168.2.99 -j ACCEPT I've used this in the past for distributing load across a number of SMTP servers, but now I just use DNS round-robin. /Per Jessen, Zürich -- http://www.spamchek.de - managed anti-spam and anti-virus solution. Sign up for your free 30-day trial now!
participants (2)
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Martin Cordova
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Per Jessen