Just wanting to chime in. Could you clarify on this? >> since LB can not directly exposed to Internet and has to be behind firewall >> we will have to use Private IP address range
Why not use a filtering bridge? That way Zen wouldn't be directly exposed, yet be using a public IP. Mit freundlichen Gr??en / With best regards Andreas Iwanowski - IT Administrator / Software Developer www.awato.de<http://www.awato.de> | [email protected]<mailto:[email protected]> T: +49 (0)2133 2969 28 | F: +49 (0)2133 2969 69 awato Software GmbH | Salm Reifferscheidt Allee 37 | D-41540 Dormagen avisor-Support | T: +49 (0)621 6094 043 | F: +49 (0)621 6071 447 [awato Software GmbH] [cid:qrCode-2cf5861a-23f7-4093-a7dd-cbb29657968201b608] Gesch?ftsf?hrer: Ursula Iwanowski | HRB: Neuss 7208 | VAT-no.: DE 122796158 From: Manish Rane [mailto:[email protected]] Sent: Monday, November 19, 2012 11:24 PM To: [email protected] Subject: Re: [Zenloadbalancer-support] Can we Load Balance Incoming SMTP traffic using ZLB Hi Emilio, Definitely DNAT Is the solution but I still feel we can not achieve redundancy at ISP level? Can we? I mean since LB can not directly exposed to Internet and has to be behind firewall we will have to use Private IP address range for we can have our own pool registered from ISP and use those IPs? Now if we use private IP address we can Load balance at Intranet level and ISP is going to provide us the pool still I believe we will have to use BGP at ISP level to load balance the traffic. Do you guys have any use case in this scenario On Mon, Nov 19, 2012 at 12:50 PM, Emilio Campos <[email protected]<mailto:[email protected]>> wrote: DNAT= L4UxNAT or L4TxNAT NAT for HTTP you can use L4TxNAT too For HTTP you can use HTTP[s] profile, TCP or L4TxNAT it depends your requeriments. 2012/11/19 Lazuardi Nasution <[email protected]<mailto:[email protected]>> Hi Emilio, What kind of profile I can use for DNAT? What kind of NAT for HTTP profile? Currently I'm using v2 Stable. Best regards, On Thu, Nov 15, 2012 at 8:32 PM, Emilio Campos <[email protected]<mailto:[email protected]>> wrote: ZLB uses NAT or DNAT in L4* farms, in your case DNAT is the solution. It means: the client connects to the lb ip, the lb ip connects to the smtp server and the smtp server see the client IP not lb IP. In this case the problem is solved. Regards! 2012/11/15 Lazuardi Nasution <[email protected]<mailto:[email protected]>> Hi, I'm interested with this incoming SMTP related thread. I have read that ZenLB use Source NAT method. The problem is how to get the real siurce address if ZenLB use Source NAT? Some MX or SMTP server use source address validation/filtering for security purposes. Not only for SMTP, I think this source address validation/filetring is related to ther services too. Best regards, >>> On Tue, Nov 13, 2012 at 7:10 PM, Emilio Campos >>> <[email protected]<mailto:[email protected]>> >>> wrote: >>>> >>>> Hi Manish, I think you are misunderstanding lb concepts in services, BGP >>>> is a diferent kind of protocol, it is used to routing and ZLB doesn't >>>> support it. >>>> >>>> You can use one ZLB for load balancing smtp service if you are more >>>> than one SMTP server behind of your ISPs, the example that NIck told you is >>>> a perfect example. >>>> >>>> Regards >>>> >>>> 2012/11/13 Manish Rane <[email protected]<mailto:[email protected]>> >>>>> >>>>> Hello Team, >>>>> >>>>> Here is my scenario. I am trying to set up a High Available Email >>>>> server using zimbra may be at ISP level or may be at single location but >>>>> with 2 ISPs. Say I have domain called example.com<http://example.com> and >>>>> setting up two MX >>>>> records >>>>> mail1.example.com<http://mail1.example.com> MX 10 20.20.20.20 >>>>> mail2.example.com<http://mail2.example.com> MX 20 30.30.30.30 >>>>> >>>>> which will forward the traffic to internal MailBox server now again >>>>> this mail box server could be two servers behind again load balancer. I do >>>>> have couple of questions regarding Email Setup but those wont be relevant >>>>> here. what I wanted to understand is how do I loadbalance the environment >>>>> at >>>>> ISP level using zen LB? Well if possible how do I with TWO ISPs instead of >>>>> using BGP or any other solution. ------------------------------------------------------------------------------ Monitor your physical, virtual and cloud infrastructure from a single web console. Get in-depth insight into apps, servers, databases, vmware, SAP, cloud infrastructure, etc. Download 30-day Free Trial. Pricing starts from $795 for 25 servers or applications! http://p.sf.net/sfu/zoho_dev2dev_nov _______________________________________________ Zenloadbalancer-support mailing list [email protected]<mailto:[email protected]> https://lists.sourceforge.net/lists/listinfo/zenloadbalancer-support -- Load balancer distribution - Open Source Project http://www.zenloadbalancer.com Distribution list (subscribe): [email protected]<mailto:[email protected]> ------------------------------------------------------------------------------ Monitor your physical, virtual and cloud infrastructure from a single web console. Get in-depth insight into apps, servers, databases, vmware, SAP, cloud infrastructure, etc. Download 30-day Free Trial. Pricing starts from $795 for 25 servers or applications! http://p.sf.net/sfu/zoho_dev2dev_nov _______________________________________________ Zenloadbalancer-support mailing list [email protected]<mailto:[email protected]> https://lists.sourceforge.net/lists/listinfo/zenloadbalancer-support
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