Information Regarding Load Balancer

May 9, 2008

We are planning for a clustering archirecture for our mail servers,The basic idea is put all of mailservers behind a load balancer which will monitor and distribute the n/w load as server load and forward the requests accordingly can u suggest any good hardware loadbalancer which could give us 'server load balancing' as well as n/w load balacing.

I would also like to know if it is a good idea to go for a software load balancer(like linux heartbeat) or to h/w load balancer.

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UK - Load Balancer

Feb 23, 2008

Im currently looking around for a Load Balancer within the budget of about £2,500

Anyone have any suggestions?

Will that budget get me one that will do the job or would I be wasting my money and should maybe save up some more cash?

Setup:

2x Web Servers
1x DB Server
1x Storage / Media Servers

*Expanding to 3/4x Web Servers, 2x DB Servers, 2x Storage / Media Servers*

I have been looking at:

F5 BIG IP D25 Load Balancer
[url]

and

F5 BIG IP D30 Load Balancer
[url]

But im unsure on what the difference between these are? as I cant seem to find there specs and what they can / cant do..

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Load Balancer

Apr 20, 2007

Anyone know of a good load balancer for Linux that is able to not only distribute load evenly amongst many servers, but one that's able to allocate servers based on the resource?

For instance:

I want www.mysite.com/dogs to be load-balanced between servers A, B, and C.
I want www.mysite.com/cats to be load-balanced between servers X, Y, and C.

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Load Balancer + VPS

Dec 11, 2007

Is there any such solution available?

Something with a failover load balancer that you can assign a static IP address to and it'll sit in front of a number of lowend virtual private servers.

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Load Balancer

Sep 5, 2007

I have two servers that I run in Los Angeles (used to host gaming servers for a small community I run) for personal use that seem to be a little jumpy with server performance.

Would a load balancer help with this situation?

And for the n00b question, what exactly is a load balancer.

Very new to hosting servers, so I appreciate a gentle response

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Load Balancer From A Linux Box

Apr 15, 2008

I wish to build a load balancer on a linux box that will load balance http/https/smtp/pop3 and ftp

what technologies i need to look at?

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Load Balancer And CPanel

May 4, 2008

I'm using Virtuozzo on two server.

1) Can I do this with only ONE Load Balancer?

I wish I could have many "LB", like one for the WWW serveur, an other one for the DB serveur, my "personnal" VPS without LB...

i.e. :
WWW -> SRV1 SRV2
DB1 -> DB1 DB2
EXCESSNET -> EXCESSNET1

Do I need 3 LB to do this or I can do it with only one? The screenshot of Barracuda LB seem to show many "virtual LB", so I guest it's a yes?

2) So... it's service only?

On the Barracuda and some page, they are talking about "service" and not "server" LB. Can I LB a whole serveur ? Like all service from an IP xxx.xxx.xxx.234 to a server ? Or I can only do "HTTP -> SRV1" "DNS -> SRV1"? If no, what happen to service that the LB didn't know (like cPanel)?

3) An Internal Network? what About cPanel?

According to my search, LB are working like this:

EXTERNAL IP of SERVICE (xxx.xxx.xxx.200) -> INTERNAL IP SERVER 1(10.0.0.25), INTERNAL IP SERVER 2 (10.0.0.26)

So, I need to configure the server with an Internal IP cause else, it will conflit on the "local network". The probleme is, cPanel will be using the "Internal IP" to make all of his configuration... so if a user add a new website, he will configure it with 10.0.0.25, this won't since the external IP will be xxx.xxx.xxx.200 and Apache won't anwser to this virtual host. What can I do?

Can I do this ? (same internal IP as the external?)
EXTERNAL IP (70.234.125.123) -> SERVER 1 INTERNAL IP (70.234.125.123), SERVER 2 INTERNAL IP (10.0.0.26)

If yes, I will configure the second serveur without cPanel and only sync the configuration and files. So in case of "crash" of the server 1, cPanel won't be working, but website won't be down...

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Webserver Load Balancer

Mar 8, 2008

traffic has been surging lately and is expected to continue surging. i am already on the fastest chipset my webhost has.

current configuration
single server (centos), webserver (apache), single filesystem. many dynamic pages (perl script) but no mysql database. no php.

ideal configuration
multiple webservers (apache), single file system.

assuming my scripts do not write to the filesystem (read only), what do i need to install or do in order to send a request for www.domain.com to server1.domain.com or server2.domain.com or server3.domain.com according to the load of each? it should look the same at the front end. anyone know what i need to get?

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Barracuda Load Balancer

Mar 27, 2008

if it is possible to hide the Barracuda Load Balancer signature in headers ?

If you check here : [url]

or do a telnet 80 to that same FQDN and send "HEAD / HTTP/1.0" + "RETURN" you will be able to see in the headers the server signature (BarracudaHTTP 1.00).

Is there any way to hide this?

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Load Balancer Solution

May 23, 2007

I'm trying to find a solution but without any result so far,

This is the story:
We have too server in Israel, in one server we have:
Win 2003 STR that use for IIS (IBM RAID 5)
And in the second we have:
Win 2003 STR + SQL SERVER 2005 workgroup.

After 1 year running in Israel we like to go out to the world with our products.

This is what I think we need to do but we still don't figure how to that:

1. Still use the same server in Israel.

2. Buy more server outside Israel, Lets say UK and set a Load Balancer between the server in UK to Israel (both IIS and SQL).

3. In the Load balancer we like to set that if the user come from europe you will go to the server in UK and if he come from Israel you go the server there.

4. If one of the server we be go down all the the users will sends to the server outside there country.

5. In the future we like to add more server in the world on the same setting.

What do you say? how can I do something like that?

What company are dealing stuff like that?

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What Is A Good Hardware Load Balancer

Feb 22, 2008

Anyone know of a hardware load balancer that can load balance my apache and mysql using one device? I mean right now I can use the ultra monkey for the load balancer the cluster mysql. But I want to go hardware.

I was thinking of F5 BIGIP? will that work? anyone know Please give me some choices..

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Apache :: Mod Proxy With F5 Load Balancer

May 30, 2013

I have a setup where Apache connects to a F5 load balancer which in turn balances between two jboss app servers.

Apache using mod_proxy -> F5 (hardware load balancer) -> 2 jboss application server

It uses jsessionid. I sometimes get 500 errors for the post methods. I think the request goes to the incorrect jboss server because of the F5 load balancer. Everything works just right when I shutdown one of the jboss app servers.

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Virtual Private Server (VPS) + Load Balancer

Jul 17, 2008

I am thinking of using a Load Balancer + serveral VPSs solution.

Is there any good recommendation ? It would be great if the hosting company can provide the load banlancer for free.

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Apache :: HTTP Load Balancer File Does Not Exist Exception

Mar 5, 2013

I am using single Apache HTTP Server (2.2.23) as a Load Balancer with two IBM Websphere application server nodes (other machines). I have deployed the simple text based helloWorld application and it works fine with load balancer. But When I deploy the real application that contains images,css file , java script file. It loads the page without images and show me simple text and gives me the following Exception on error_logs and similar kind of exceptions

[error] [client 192.217.71.77] File does not exist: /usr/local/apache2/htdocs/application, referer: http://192.168.141.17/application/faces/test.jsp

Interestingly, when I access the application without load balancer, it also works fine.

Here are the load balancer settings

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Barracuda Balancer

Aug 7, 2007

A little bit excited as the Barracuda is coming soon...

We have 1 forum server, and it's being access internally by all the classrooms, students, teachers, etc. How should I approach this setup? The current hostname for the forum machine is forum... how should I setup the cluster? forum2?

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Apache :: Mod Balancer And Stickiness Without Cookie

Oct 15, 2014

I have a short question concerning Mod Balancer and Stickiness:

At the moment I am achieving stickiness with a cookie.

Header add Set-Cookie "ROUTEID=.%{BALANCER_WORKER_ROUTE}e; path=/" env=BALANCER_ROUTE_CHANGED

However, I am getting complaints by users which do not allow coockies in their browser settings that my page does not work properly.

Is there any way to achieve Stickiness with out cookies (e.g. add the information to the URL or something like that)?

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Apache :: Pass SSL Through Balancer - Let Workers Decrypt

Apr 23, 2015

I'm using mod_proxy_balancer in Apache 2.2.29 with OpenSSL on Windows to distribute HTTPS requests to two other back end servers, both of which are also Apache 2.2.29 with OpenSSL on Windows.

DumpIO shows that the requests are being decrypted on the balancer, and then sent unencrypted to the two workers. I would like to have the requests pass through the balancer without decrypting there, and let the two back end worker servers do the decryption. Is that possible? If so, how?

When I tried simply disabling SSL on the balancer, the requests fail, with nothing logged at all.

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CPU Information

Oct 30, 2008

Is there a way in shell, to find out information on the CPU(s) in the server?
I'm using Centos, on a cPanel server. However, I'm looking for more info than what WHM's "Server Information" provides.

Trying to find out what generation Xeon is in the server, so I can read about it's specs.

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VPS Information

Jul 18, 2007

I am interesting for VPS but iwant windows 2003 with mssql2005 installed...
is there any company supporting this?

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Information About VPS

May 6, 2007

How do you get like for example ROOT of cPanel in a VPS? How would you be able to use it besides like giving permission to use WHM and stuff on accounts. As doesn't remote reboot and such have to happen on the whole server?

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Configuring DNS Information

Mar 24, 2009

I am moving my servers this week and my new host doesn't do domain hosting. This is my first time doing it, I need help in pointing my domain to the new server. I just need the basic settings for A, CNAME and MX records.

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Backing Up Information

Feb 18, 2009

I understand that servers can do automatic backups of information, yet I also see forum modifications that enable simple ways of doing a backup. Are there different types of backups? Why is it necessary to manually backup a forum database when its done automatically by the server? In terms of assuring the data, what is required and whats a typical procedure, what does it entail, is it manual and if so usually how often, or is it usually automatic?

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Information On Ourinternet.us

May 25, 2008

it looks good and the prices are reasonable, I wonder if anybody has had any experience with them.

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My Information Server

Oct 28, 2007

how may i can understand full information of my server for example my hdd is sata or ide
whats my memory and ... my server is centos

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Information About Cloud Computing?

Sep 16, 2009

What is best source of information about cloud computing?

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How To Protect Reverse IP Information

Apr 10, 2009

is it way to protect Reverse IP information ?

I mean someone can't see friend sites in same vps/server.

This is my domain ( godaddy )
[url]

And another domain ( not me )
[url]

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Server Information Secret

Mar 24, 2009

Whois for a run when a particular IP it shows the location of the IDC as information.

I wonder what IDC Servers rent that information to the Whois IP can be changed so not knowing where it is being rented.

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Account Information Files

Jun 23, 2008

in cpanel the account information (like email address, space, bandwidth, etc..) stored on /var/cpanel/users/<username>.

I want to know where is stored user account informstion on PLESK?

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Lower CPU Mhz In WHM, Server Information

Jan 31, 2008

I was checking my server information today on WHM panel and this is what I saw:

Processor #1 Vendor: GenuineIntel
Processor #1 Name: Intel(R) Core(TM)2 CPU 6700 @ 2.66GHz
Processor #1 speed: 1596.000 MHz
Processor #1 cache size: 4096 KB

Processor #2 Vendor: GenuineIntel
Processor #2 Name: Intel(R) Core(TM)2 CPU 6700 @ 2.66GHz
Processor #2 speed: 2660.000 MHz
Processor #2 cache size: 4096 KB
Why is the Processor #1 speed labeled as 1.6 ghz? Processor #2 speed never goes down no matter how high the load is. Could it be the reason that my server can't handle 4 websites with a cumulative total of 20k unique hits per day?

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Mysql 5 - Information Schema

Feb 19, 2007

Someone knows how to block viewing "information schema" for unprivileged users? When accessed, it causes abnormal load to server.

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Dns Information In LXAdmin For Google Apps

Apr 9, 2008

You use FCName for setting cnames in the dns info. for google apps like calender, docs etc., right!!! then how do you provide the ttl values.

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