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3
votes
1answer
27 views

Using a load balancer instead of Apache to throttle transactions from specific IP's

I have two Apache instances behind a load balancer that I transfer the request to depending on the request type. Now what I want: when I get too many transactions from any IP, I want to block that IP ...
4
votes
1answer
118 views

Why does my cpu never get past 60-70% cpu usage? Where is the bottleneck?

In my CPU graph thingy, I have noticed recently that when compiling stuff I can never seem to reach 100% usage, it just keeps bobbing up and down around 60-70% max. Example: In contrast, this graph ...
1
vote
0answers
40 views

How to make load balancing work from the pfSense box itself?

pdSense is a special distro of FreeBSD for routing. It supports limited multi WAN load balancing, i.e. it is possible to configure pfSense so that each next request will connect via different WAN ...
0
votes
0answers
27 views

How to route to Virtual IP as gateway

I have environment on Centos 6.7 Final, 2 Loadbalancer failover (Haproxy, keepalived), 3 Web Server (nginx - PHP-Fpm). LB1 (Public x.x.x.233, Private 10.110.120.21), LB2 (Public x.x.x.235, Private ...
1
vote
0answers
80 views

Apache Load Balancer Timeout

We have two httpd servers running on RHEL 6 behind a hardware load balancer We are getting timeout errors in our httpd error log. [Fri Feb 19 15:06:49.823372 2016] [proxy_http:error] [pid 15760] ...
0
votes
0answers
36 views

HTTP Session Management while using Nginx as in “Round Robin” mode Load-balancer?

I'm trying to load-balance "2 Web Servers (running Apache/PHP)" by putting Nginx in front of them. But i need to use Round Robin algorithm but when i do this, i can't manage to have the stable ...
0
votes
1answer
197 views

Understanding retry value in Apache Load Balancer Configuration

We are using mod_proxy to balance load between our backend servers . We have different setup and some of the backend servers either runs on tomcat\jboss. The balancer configuation is as follows ...
0
votes
1answer
48 views

Running crons on a scaled mirrored servers (cron logic needed) [closed]

I have a client running on Rackspace, they have three servers that are synced together entirely, I've added a bunch of crons in the crontab using wget to the web address of the cron (that sync to each ...
0
votes
1answer
77 views

How to load balance mutiport traffic using HAProxy

I have 2 servers that host an application that listens to mutiple ports. Is there a way to load traffic between these servers using HAProxy? I tried this in configuration, but it didn't work: ...
1
vote
0answers
52 views

How to Limit the hit-rate of connection for “X-Forwarded-for” IPs?

I have Apache, which is behind the Amazon ELB which forwards the IPs as in "X-Forwarded-for" header. I found some articles around to do the hitrate limitation but i doubt they are all for real IPs, ...
0
votes
1answer
47 views

Apache loadbalancer not serving requests intelligently

My Apache LB is serving requests to a failed node as well. Am I missing something? worker.list=node1,node3,loadbalancer. worker.node1.port=8009. worker.node1.host=10.0.0.17. ...
1
vote
0answers
248 views

OpenVPN load balancing

The question is in general about the best practices. VPN network has to manage about a thousand of simultaneous connections, so there is a problem in load balancing over several OpenVPN servers. ...
0
votes
0answers
69 views

load balance/failover router

I have a debian server that runs as NAT router/gateway for my LAN. Setup is: ISP_router(192.168.0.1) | v eth0_debian_server(192.168.0.2/24) | v ...
2
votes
3answers
113 views

KeepAliveD Documentation

I am looking for a consolidated documentation for KeepAlieD. My apologies if this is not the right place to ask this question. However, even after extensive googling for 2 days, i could not find a ...
1
vote
1answer
106 views

load balancing multiplie services linux

I have setup multiple servers, One of them is a windows server running team speak. The other is a game server with csgo(counter strike global offensive) and lastly, one running an apache server. ...
0
votes
1answer
349 views

keepalived virtual_server - only answering on box keepalived is on

I have a flat network (no routing yet) of 3 servers, each with a service (http, mysqld, doesn't matter) listening on 0.0.0.0 (ip_nonlocal_bind and ip_forward are on) and running keepalived. ...
0
votes
0answers
44 views

load balance router

i am do live far away from the local exchange and the DSL is quite unstable. it can get days without service. so i decided to invest in a usb 3g stick (10GB/month, ppp0 in my system) and a usb wifi ...
1
vote
2answers
1k views

Multiple IP source on single interface in Linux

We could set multiple IP addressses on single interface, for example using NetworkManager: How to make any connection to outside of this PC to use different IP? for example if I have 8 IP ...
0
votes
1answer
518 views

setting (system-wide) CPU affinities for running processes on a Linux platform

I am conducting a kind of research in that I schedule multiple parallel applications (e.g., OpenMP/pthreaded applications) and execute the applications on specific (partitioned) cores on Linux-based ...
1
vote
1answer
97 views

How nginx receives requests from client and forwards it to the actual server?

I have installed nginx on RHEL and now I need to configure it to forward the requests to the actual server in the /etc/nginx/nginx.conf. My actual server is using a private IP address, will nginx ...
1
vote
0answers
18 views

SSL (Hosted on LB) to be installed on the Downstream Apache Servers?

First, i have very basic knowledge on the SSL topic. Here is my setup. I have (1) of Public Facing Domain on LB and (2) of Internal Domains on each Web Servers. Like: ...
1
vote
0answers
239 views

route gateway proxy traffic through different interface with identical upstream gateways

My question is similar to the below with a small caveat not answered by any of these threads: Output traffic on different interfaces based on destination port ...
2
votes
0answers
138 views

bonding multiple proxy connection

I want to use multiple proxy servers at the same time to speed my downloads. Reverse proxy products such as haproxy and nginx can use multiple proxy servers, but only one proxy per session. ...
0
votes
0answers
60 views

JBoss cluster reporting “Caught TimeoutException acquiring ownership”

We got an Apache load balancer which forward requests to both WebLogic and JBoss clusters. Both clusters work fine until the load balancer gets flooded and there are waiting requests. When this ...
3
votes
3answers
3k views

Implementing load balancing on any Linux distro

I am thinking of implementing a load balancing solution for personal use. What I want to do, is to maximize data throughput over mobile phone Internet connections. Let me be clear: I have data plan ...
6
votes
1answer
1k views

Skip routing via `lo` interface for outgoing packets

Introduction I have following load balancing configuration: 10.0.1.31 - lb 10.0.1.35 - virtual IP 10.0.1.32 - node1 (tomcat + mysql) 10.0.1.33 - node2 (tomcat + mysql) I'm using keepalived which ...
1
vote
2answers
429 views

Apache: Simulate 100 new connections per sec with ab

I know I can use "-c" switch in ab to simulate a certain number of concurrent connections. Is there a way in which I could use "ab" to simulate 100 new clients every second visiting my website or ...
4
votes
6answers
21k views

NFS Automatic Fail-over or Load-balanced or Clustering?

I've been using NFS (and it is the only one i know well in Network Files) for a few years. But still can not able to find out .. How to make NFS Servers in Clustered Design (or Load-balanced?) Or at ...
0
votes
0answers
161 views

Capacities on Load-balancer & Web Servers? Bandwidth + Performance

I'm on DigitalOcean and I have a very simple scenario for my website. Now having 3000 concurrent hits every minutes. (For example) Currently it is directly on 1 only single Apache Server. The ...
3
votes
0answers
738 views

Corosync/Pacemaker cluster loss of synchronization

I'm facing a problem with the corosync and pacemaker cluster software. I've two virtual nodes (Scientific Linux 6.4) and corosync/pacemaker installed on them: corosync-1.4.1-17.el6.x86_64 ...
0
votes
0answers
95 views

Redundant and Load Balanced storage on FreeBSD?

Back from: Load balanced & Redundant Storage on FreeBSD How do I create a (Redundant and Load Balanced) Storage based on FreeBSD? Storage should be located on (2 or more servers) providing ...
3
votes
2answers
2k views

Load balanced & Redundant Storage on FreeBSD [closed]

Did Google for this the last week, still can't find any reasonable solutions for FreeBSD. Most of the articles contain solutions for a fail-over storage only (FreeBSD HAST). This is NOT what I'm ...
0
votes
1answer
576 views

installing apache httpd server on RHEL-6

I have 5 systems running apache tomcat server. For load balancing, I need to install apache httpd server. How should I do this? Please provide me some useful links and your opinions on this. I am ...
2
votes
1answer
534 views

Solaris 11: How to use ILB to create HA loadbalancer across two backend servers?

I'm attempting to use Solaris 11's ILB to create a loadbalancer across two backend DNS servers. Here's my requirements: Two external IPs: .XXX.YYY, .XXX.ZZZ - these are the DNS IP's that our clients ...
3
votes
1answer
306 views

Is there a way to renice the network stack?

I have an ARM Linux board that is a router to 16 other boards. When all these download their updates via the router, the network routing effort starves the user space so that a software watchdog (and ...
5
votes
3answers
1k views

Port fowarding and load balancer in ubuntu server 12.04

I am looking to create a load balancing server. Essentially here is what I want to do: I have a public IP address, lets say 1.1.1.1 I have a second public IP address, lets say 2.2.2.2. I have a ...
6
votes
1answer
966 views

Load Balancer Solution with linux

I need a suggestion to realize a proper solution to this problem: As you can see in the image above, I have 2 application servers that need to talk with and external third party provider over the ...