-1
votes
0answers
30 views

Network Load Balancing (NLB), how to assign a public IP?

I have two web servers that I am trying to configure in an NLB. I have so far managed to get the NLB working on a private network range but I now need to expose this on a public IP. My servers ...
14
votes
2answers
281 views

Campus Network Design - Firewalls

I am designing a campus network, and the design looks like this: LINX is The London Internet Exchange and JANET is Joint Academic Network. My goal is an almost-fully redundant with high ...
3
votes
2answers
205 views

Windows Server 2008 R2 Network Load Balancing no balance

I set up a NLB cluster given two servers (WS 2008 R2). Each server has one NIC card which I set up for a static ip address. I assigned the cluster an internet name (MyCluster), and assigned it a ...
0
votes
3answers
91 views

Software load balancer for Windows

I'm looking for a simple load balancing solution for Windows. I have two machines (say host0 and host1), any of them is hosting TCP service (so it can be either host0 or host1, but never host0 and ...
0
votes
1answer
27 views

Network Load Balancing - Server 2008 R2

I have 2 virtual Windows Server 2008 R2 instances that I am load balancing with Widnows Network Load Balancing. Since they are on vmware, each machine has 1 nic and uses multicast mode. With ...
1
vote
2answers
95 views

Load balancing across uneven links (Cisco\OSPF)

I know that OSPF will load balance across equal cost paths such as: R1 ------------------ R3 | 100mbit | | | | 1gbit| |100mbit | | ...
1
vote
1answer
92 views

Loadbalance UDP traffic with session affinity and way to take servers in & out of rotation [closed]

What is the best way to go about load balancing UDP traffic among a whole bunch of servers, while keeping session affinity based on the users' IP? I need to also be able to take servers in and out of ...
0
votes
3answers
111 views

is this network structure viable?

I would like to know if this network structure it would be viable or not. The main reason it would be to be able to switch manually, the ISP. If one is going down than use the other one. as I know ...
1
vote
1answer
31 views

Network Load Balancing Manager failover

I would like to be notified when one of my clusters in Network Load Balancing Manager starts up or fails. The documentation seems to infer that there are no advanced scripting, logging, or ...
0
votes
1answer
283 views

keepalived doing a lot of TCP DUP ACK and TCP Retransmission

I'm trying to replicate the setup our hosting provider have done for our load balancer, which is using keepalived. So I have one "load balancer", running CentOS 6 and keepalived 1.2.7, with two Web ...
0
votes
0answers
74 views

ip_conntrack vs TPROXY performance

I'm currently trying to set up a high performance load balancer who - ideally - would be able to handle more than the ~65k connections that are possible without using a transparent proxy, with HAProxy ...
1
vote
1answer
75 views

Drop non SSL packets on Linux

I would like to filter out all non-SSL based traffic for a specific port (443). Is there a way to do this with iptables, or another Linux application?
1
vote
2answers
144 views

What DNS servers to use with multiple connections

I have a complex configuration of multiple ADSL connections from multiple ISPs being load balanced by a Draytek Vigor 3300V+ My question is what DNS settings should I use. Should I use the ISP ...
0
votes
1answer
46 views

Firewall to Load Balancer throughput

I have a theory question for you networking guru's if wouldn't mind answering :). Let's say I have a Cisco ASA 5510 who's cleartext throughput is 300Mbps and sitting behind that I have Citrix MPX 5650 ...
2
votes
3answers
122 views

One Alias to point to multiple IP addresses

The problem I have is the following: I have distributed application (3 geographically spreader nodes), which on request returns large data sets. In order to reduce the network traffic, I need to ...
0
votes
1answer
70 views

Private ip iptables rule

I am using Windows Azure where they allocate a private IP for you like 10.3.2.1. If I have another machine at 10.3.2.2, how can I open up the first machine(say port 3306) to let the second machine to ...
0
votes
1answer
137 views

Connecting HAproxy load-balancer to WAN and LAN

I'm setting up a load balancer with failover and I'm confused on how to properly set it up. The load-balancer is balancing web traffic to web-servers on a LAN network. My setup is the following: I ...
0
votes
0answers
139 views

Can someone guide me with setting up Network Load balancing for RDP connections?

We have two servers web3 and web4 and a domain controller mws. I have been trying to set up load balancing for users who use remote desktop connection to connect to web3 and web4, but have failed ...
1
vote
0answers
177 views

Load Balancing Ethernet LAN & WIFI on linux?

I have configured two internet connection to my Linux box, first Ethernet LAN with range 192.168.2.1 & WIFI with range 192.168.1.1 this both connection are connected to 2 different internet ...
-2
votes
1answer
165 views

How to have load balancing using 1 Ethernet card + 2 ADSL router

I have 1 Ubuntu 12.10 server with 1 eth0 (192.168.0.100) and it's connected to my switch. In my network I have 2 ADSL routers (192.168.0.1 & 192.168.0.101). How I can configure my server to act ...
2
votes
1answer
107 views

LoadBalancer with ApacheProxy on ESXi VMs

I'm trying to build a Load Balanacer using Apache's mod_balancer. In this project are involved 1NAS Server 2 ESXi Servers(Here I have all of my Workers running on Internal Network), 1PhysicalServer ...
0
votes
1answer
2k views

Fortigate + HP ProCurve Load Balancing

I have a FortiGate 100D + HP ProCurve 2824 linked together by 4x 1Gb links. The ProCurve is configured to have ports 21-24 trunked together and load balance them. The 4 cables from these ports are ...
2
votes
3answers
453 views

How to maximize parallel download from S3

I got a lot of images to load from Amazon S3 on a single page, and sometimes it takes quite some time to load all the images. I heard that splitting the images to load from different sub-domains would ...
0
votes
1answer
156 views

sticky session configuration css 11503

I have two jboss instances behind a cisco css 11503 for load balance. In each of this instances, I have two applications. One of them, needs sticky sessions to be enabled, the other does not. Is it ...
1
vote
0answers
63 views

trying to understand network layer(s) in WebAPI server cluster

I'm in the process of building my first webAPI server cluster. The webAPI hosted by this cluster provides a hi-comute resource, where each task request requires between 0.5 and 1.0 seconds of CPU ...
1
vote
1answer
549 views

PXE booting LACP hosts on Force10 S50N with FTOS

Hardware: S50N Firmware: FTOS 8.4.2.6 Problem: We're trying to PXE boot some servers that are connected via port-channel interfaces with LACP. Current Work-around: we PXE boot a server with a ...
3
votes
4answers
2k views

Need help troubleshooting intermittant TCP timeout in HAProxy

I have an application where the client connects to a server via a simple TCP based protocol over TLS/SSL. In development, this has worked great for many months while we were building our application ...
1
vote
0answers
298 views

Getting Squid to download files using multiple internet connections [closed]

I have 2 internet connections into the house, one 120Mb/s and one 60Mb/s. They will be eventually connected to a RouterBox router (A 750G to be exact) and the bandwidth loadbalanced between them ...
2
votes
2answers
90 views

DNS loadbalancing

I have several server. We want set up new big service (word 'big' came from my boss :P ). I want use two Cisco LoadBalancer ACE 4700 but what will it happen if one of ACE is down? So I want setup DNS ...
1
vote
1answer
663 views

Load Balancing, Active-Active config and dynamic server addition

Right. I'm looking into setting up a system something like this: / [Load Balancer] \ /\/\/\/\/\/\/\ [LAN1] - ----- | Server Pool | \ [Load Balancer] / ...
1
vote
1answer
121 views

Load balancing setup

Server 1(Proxy) -> Server2/Server3(Apache) -> Server4(mySQL) For server 1 I would setup HARproxy with something like? global log 127.0.0.1 local0 log 127.0.0.1 local1 notice ...
2
votes
1answer
188 views

Magento - Users unable to login from corporate networks with Bluecoat / F5 Load balancers

Hoping someone has come across this issue before with Magento and corporate clients. We have two clients for our Magento site who both have their internal networks setup using bluecoat security ...
0
votes
3answers
647 views

Windows Load Balancing over many subnets; how many IP addresses are required

I have two hosts that have an interface in 4 different LAN subnets (no WANs apply here). 10.1.1.x 10.1.2.x 10.1.3.x 10.1.4.x Assume that each subnet will need a local service of x.x.x.9 as the ...
1
vote
0answers
264 views

Can Cisco ACE load balance ISPs?

There is an interesting usage of the Cisco ACE to balance output internet traffic through different ISPs, as explained here https://supportforums.cisco.com/thread/2110390. Basically, it would be set ...
7
votes
5answers
729 views

Weighted round robins via TTL - possible?

I currently use DNS round robin for load balancing, which works great. The records look like this (I have a TTL of 120 seconds) ;; ANSWER SECTION: orion.2x.to. 116 IN A 80.237.201.41 ...
1
vote
2answers
4k views

Cannot start up haproxy

Using ubuntu as my server I'm trying to set up load balancing using HAProxy. When I try to run using "haproxy -f haproxy.cfg" i get this error. [WARNING] 035/115820 (1148) : [haproxy.main()] ...
0
votes
1answer
67 views

Active - Active Appserver Loadbalancing strategy

Have a tomcat web application running across 6 servers. 3 In our primary site and 3 in the DR site Our networking team setup 2 sets of load balancing First layer is Site Level, splits traffic 50/50 ...
1
vote
1answer
396 views

Unequal Cost Load Balancing via MPLS TE

Given the following network, with all sites' network routing tables built via OSPF: Site_A | Site_A_router | \ | Intermediate_site_C_router -- Other_sites | ...
0
votes
1answer
221 views

Network GURUs - IP failover combined with load-balancing… Is there such software? Is it possible?

I've been playing around with high-availability solutions for a few days and so far I find UCARP very useful for IP fail-overing. It's dead simple and does the job. I was thinking about taking it a ...
2
votes
3answers
454 views

Load balancing for webservers (with state sync)

(I've looked at other questions, I don't think any of them cover the same stuff as this) I'm looking at a load balancing solution for our farm of webservers. We currently use Cisco CSS11000 series ...
1
vote
1answer
106 views

I'm being asked to support mapping many SSL keys to one IP but I think it's a bad idea. Am I wrong?

At work, I've been asked to add support for mapping multiple keys to a single (or many even) IP to what is essentially a passive HTTP sniffer. It supports SSL decryption with user-uploaded keys. ...
1
vote
0answers
180 views

Bad request 400 Error when using parent cache node

I'm trying to design a load balancing system with a parent cache. I have 2 Child Cache servers with ARR and Network load balancing features installed. (vServer2008-1: 10.7.10.90, ...
3
votes
2answers
2k views

How NLB will work with IIS-7 web services?

We'are going to join 2 (two) IIS7 web-servers into NLB with the same web-service published (2 instances of the same web-service one per web-server). Do I understand correctly, that NLB will work for ...
1
vote
1answer
175 views

OptiQroute does not favor weighted WAN connection

I have an interesting problem: Our load balancer (a FiberLogic OptiQroute 2140) seems to consistently favor one WAN connection over another (and not one I want it to). We have two WAN connections ...
1
vote
2answers
252 views

Load balancing or high availability tomcat with network switch?

i was wondering if it is possible to load balance and create a high availability environment using network switches? Or do i need a real apache server in front of the tomcat servers?
0
votes
1answer
619 views

HAProxy Multiple Domains

We currently have a HAProxy set up that splits the load over two backend servers and it reads/sets a cookie accordingly so you stay on the same server throughout the process. However, we now have a ...
1
vote
2answers
527 views

load balancing using dhcpd

i'm just wondering if it's possible. i don't want to hear about other solutions, since i know them. I just want to know if ISC dhcpd (or any other open source dhcp server) implement it. Imagine that ...
1
vote
5answers
597 views

Loadbalancing between two isp uplinks

I have a networking question I could not find an answer for with google. We have currently at work two ISP boxes(routers), i want to setup a firewall to protect an intranet on a local host. The ...
2
votes
0answers
190 views

Loadbalancing between two isp uplinks

We have currently at work two ISP boxes(routers), i want to setup a firewall to protect an intranet on a local host. The problem is that not every one is using the same router. Here is my question: ...
4
votes
2answers
496 views

Google network architecture

I am aware that this question might be closed as "not a real question", "subjective" or even "argumentative". If this is a mistake, I am sorry. I am not good at all at networking but I'm trying to ...