Subdomain As Failover On Other Server
Jun 12, 2007
CentOS, LAMP, webmin.
I have ibeat.org running on one server.
Now I want to make a status subdomain on another server.
ibeat.org on one - status.ibeat.org on another.
I've edited the master zone on server one and added status.ibeat.org. and www.status.ibeat.org. ... and pointed it with A and CNAME to the other server and related IP...
I have also created the subdomain on the second server.
So my question is what should I do to get this working? This isn't!
I want to have a status link on the ibeat site ... and also:
... if server one with ibeat.org fails make it open status.ibeat.org?
Should be pretty simple - but can't get my head wrapped around it.
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Jul 17, 2008
I host my own server but need to get a failover server in the case it goes down. Does anyone know of any companies that host failover servers that will run off my own server?
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Oct 26, 2007
I'd like to create a failover server, a complete and identical copy (as much as possible) of my primary server, which becomes "primary" when the first server dies.
I've been reading a lot about this subject and i've seen an already working method which uses rsync and MySQL replication.
Has anyone managed to create such a system? is there someone with experience or can point me to a relevant web site?
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Apr 23, 2009
So, there is my example. I have two servers in different locations. First one is the main server with all the data and the second one has just simple notice like "We will be back soon".
Now, if I set the primary DNS server on main server and secondary DNS on second one (but with different A records), will users actually get the server two if main server is down?
Will this work or not? I want 100% access to the site, at least to the server with only notice (I don't need data from main server). I can set the round robin, but I don't need load balancing (actually I want access only main server), but just if main server is down to go on the second one.
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Jul 13, 2007
I am trying to do a fail over solution with round robin dns. Our dns is served by windows and our web servers are setup with Linux..
I know round-robin does not by default do a fail over, however my understanding is that a script can be used to remove the failed server for dns, is anyone aware of something that will do this for windows?
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Jun 22, 2006
I run a site with about 1,000,000 unique visitors per month and recents server failures made me decide to get a failover server to minimize downtime. My goal wasn't to get 99.999% uptime but to be able to be back on track after a failure in a "reasonable" amount of time. After evaluating several solutions, I decided to go with DNS failover. Here's how the setup work:
1) mydomain.com points to main server with a very low TTL (time to live)
2) failover server replicates data from main server
3) when main server goes down, mydomain.com is changed to point to failover server
The drawback is the DNS propagation time since some DNS servers don't honor the TTL and there is some caching happening on the user's machine and browser. I looked for empirical data to gauge the extent of the problem but couldn't find any so I decided to setup my own experiment.
The Experiment
==============
I start with mydomain.com pointing to the main server with a TTL of 1800 seconds (1/2 hour). I then change it to point to the failover server which simply port forwards to the main server. On the main server, I periodically compute the percentage of requests coming from the failover server which gives me the percentage of people for which the DNS change has propagated.
I made the DNS change at exactly 16:04 on 06/21/06 and here are the percentage of propagated users:
06/21/06 16:00 0 %
06/21/06 16:05 3 %
06/21/06 16:10 20 %
06/21/06 16:15 37 %
06/21/06 16:20 59 %
06/21/06 16:25 69 %
06/21/06 16:30 76 %
06/21/06 16:35 80 %
06/21/06 16:40 86 %
06/21/06 16:45 90 %
06/21/06 16:50 91 %
06/21/06 16:55 92 %
06/21/06 17:00 93 %
06/21/06 17:05 94 %
06/21/06 17:10 94 %
06/21/06 17:15 95 %
06/21/06 17:35 95 %
06/21/06 17:40 96 %
06/21/06 17:45 97 %
...
06/22/06 10:40 99 %
So even after 18 hours, there is still a certain percentage of users going to the old server so DNS failover is obviously not a 99.999% uptime solution. However, since more than 90% of the users are propagated in the first hour, the solution works well enough for me.
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May 11, 2015
Wordpress installation (WPML with 3rd level domain es. site. com, fr. site. com).
I need to redirect page from subdomain to a new subdomain
Example:
esp.site.com/oldpage -> es.site.com/newpage (different subdomain)
esp.site.com/oldpage1 -> es.site.com/newpage
esp.site.com/oldpage2 -> es.site.com/newpage
Source site is very chaotic and there are no clear rule for redirection (no regex )
So I need to redirect every page but syntax:
Redirect 301 esp.site.com/oldpage http:// es.site.com/newpage
doesn't work!
which is the correct syntax ?
Can I manage all from one .htaccess file in main root (www) or should I create "esp" directory (and point old subdomain to it - one for every language) and put .htaccess in every directory with redirection ?
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Nov 2, 2009
I have a design client who's main site (eg. site.com) is currently hosted, let's say, at some-other-host.com. He wants to add a blog to his site. I could just set up a subdomain for it and be done with it, but for SEO purposes, I prefer to put his blog on my server which is a different IP.
So is there a way to put his blog, as a subdomain, on my server even though the main site is hosted elsewhere? Is there some magic that can be done in the DNS settings (cpanel/WHM) that can point to the files on my server? Or does he have to simply buy another domain for the blog?
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Mar 26, 2009
I want to add a DNS Failover automated service at my server, in order that when it goes down, the DNS Failover enters in action and it will redirect all the traffic to a second backup/failover server (hosted at a different location).
So in order to do this i have been looking around and i have found dnsmadeeasy, and i found their offer interesting.
But i still have some question and doubts on how a dns failover service works. So maybe someone can expalin it to me.
My question and doubts:
1 - If i use for example the DNS failover from dnsmadeeasy, i would have to buy 2 servers where one is the principal server and the other is a backup/failover server, so when my main server goes down, the dnsmadeeasy will detect in a automatic way, and redirect all the traffic to my backp/failover server. After my principal server goes back online, dnsmadeeasy will automatic redirect all the traffic to the principal server.
Im i correct? Or i understound wrong how this works?
2 - I use my own Nameservers and i want to continue to use my own nameservers. So if i use dnsmadeeasy services, i will be able to continue to use my nameservers as ns1/ns2 and then i will add the dnsmadeeasy ns3/ns4...as the following example:
ns1.mynameservers.com
ns2.mynameservers.com
ns3.dnsmadeeasy.com
ns4.dnsmadeeasy.com
ns5.dnsmadeeasy.com
ns6.dnsmadeeasy.com
Correct?
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Apr 4, 2009
I am planning to rent 2 managed dedicate servers with windows server 2008 and ms.sql 2008.
which I will use one for web application and 1 for database server.
why people usually divide them into web and database server? is it for security or performance reason?
Which one you prefer to choose?
- 1 server for web and 1 server for database.
or
- 1 server(web and database) and 1 server for failover
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Aug 4, 2007
In making my plans for my web hosting business I plan to start, I've thought about a failover but wanted to know the best way to set it up.
I would ideally like to start with something like getting a small shared hosting solution (not reseller, just shared) at a reliable hosting company. On this hosting plan, I will host a simple 1 page site that says my company is having technical difficulties, reminds people that data is safe, and provides any contact information accessable (like e-mail/phone/etc...).
I already have DNS setup offsite.
I would like that if my server(s) go down for any reason, whatsoever, that DNS automatically starts serving the temp site.
so if my server suddenly goes down, [url]or [url]suddenly goes to the offsite shared hosting plan.
This would not provide customer site redundancy. This would only ensure that if anything happens to my service, customers have a page available that explains what is happening and has information to contact us to get more details.
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Mar 6, 2008
i had searching in this forum and in google How to set Subdomain to other server, i had try some of methode but still not working, because i cant set A Name in godaddy, because i use other webhosting outside godaddy
i just have ip address from my other server, i want subdomain to go this ip address, for example 10.42.1.21
what is your experience in godaddy, how to set Subdomain to other server, please give simple step by step dude
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May 27, 2009
we have 2 VPS
vps 1 : install Direct Admin
VPS 2: install Kloxo ( LxAdmin)
IN VPS 1 we have Sub domain ( sub.site.com)
in VPS 2 : im set DNS in Kloxo => sub.site.com when i click in kloxo, Ipaddress /configur Domain
when i select sub domain ( sub.site.com )
show this error :
Alert: To map an IP to a domain, the domain must ping to the same IP, otherwise, the domain will stop working. The domain you are trying to map this IP to, doesn't resolve back to the IP, and so it cannot be set as the default domain for the IP.
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Apr 25, 2009
I want to host a personal FTP server for myself and friends at home. I have 30Mbit/30Mbit unlimited optical fiber net with a static IP, so that isn't my problem. I also know how to setup the FTP on my computer.
The thing I need help with is the domain. How can I make files.mydomain.com be hosted at home while the main domain (and the other subdomains) is hosted by a host? I don't own the domain or a host yet, so I'm open for all options.
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Sep 28, 2008
I am hosting my domain (ex: xyz.com) on 1and1.com.
I would like to know how to host a subdomain on a different host (ex: subdomain.xyz.com ON dreamhost.com)
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Apr 29, 2008
I have 2 domains as follows:
Domain1 on Server 1 = www.domain1.com
Domain2 on Server 2 = www.domain2.com (has a forum)
How can I configure subdomain.domain1.com, but to be on Server 2?
The idea of this exercise is to feel the visitors when they browse the forum that they are on same website/server.
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Nov 4, 2008
I have a dedicated server hosted at domain.com. I want to get a new server and link it to something.domain.com
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Dec 15, 2008
If I create subdomain to point to a different folder on a different server, can I still keep the original URL?
I'm a new member so cannot post links as example but if subdomain from link A points to link B, can it still keep the URL of the subdomain from link A?
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Jul 3, 2008
I have a server running IIS that I have a primary website hosted on, let's call it...foo.com
So foo.com is hosted and setup through IIS, resolving fine. Now, I have created a site on a different server (not on the same network) to run a subdomain called 'local.foo.com'. How do I get IIS to point all traffic for local.foo.com to the IP of the server hosting the subdomain?
I tried adding a hostname to the primary domain in IIS through "Properties" > "Web Site" > "Advanced" but I am stilling getting the Invalid Request Bad Host Name error.
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Jan 31, 2007
I have my myname.com and I'd like to forward home.myname.com to my home server IP.
I'm running Linux and Apache on both the server I lease (that has myname.com set up on) and on my home server (hopefully home.myname.com).
So far I've tried URL rewriting in .htaccess, which works, but it fowards to my IP in the browser's address bar- Id like to keep the address bar as home.myname.com.
I assume I have to modify the DNS zone for myname.com right?
I'm using bind on the leased server
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Feb 28, 2007
I have a dedicated
Under namecheap I point this domain using nameserver ns1.*** and ns2.***
Now I must make this:
ms1.domain.com must point to server A
ms2.domain.com must point to server B
How I can set this at best?
Setting must be maked on namecheap (manage dns under namecheap)
OR
setting must be maked on WHM?*
* x example:
www.domain.com point to server A
into server A we must define ms1.domain.com to use local
AND
must define ms2.domain.com to point external to secon server (B)
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Jul 11, 2008
We have 2 Cisco PIX 515's in a failover configuration (7.1 series IOS). We have available both a serial failover cable and adequate switch capacity to allow using either the serial or LAN-based approach. We have no current plans to locate the firewalls physically apart.
We have plenty of info on how to configure either, but no recommendation on which is the better choice.
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Feb 21, 2009
I have a reseller account with a company that often has spontaneous DNS errors, and this, as you know looses us money. I also have a dedicated server running a panel exclusively via IIS. Is there a way I can set up my dedicated (Windows) box and my reseller account in a mirror way, so if one of them fails, the other will take over.
There are no file changes often, more database then anything. Is this possible?
Main necessities are:
-Mail Servers
-MySQL Servers
-PHP5
-Cron jobs
(Or, if a shared hosting company can accommodate this somehow and is relatively inexpensive.
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May 1, 2008
Basically have 2 hosting accounts at different providers...each set-up for the same domain name...and then somehow wtih DNS make it so if host #1 goes down traffic goes to host #2 (which would basically be a splash screen explaining that host #1 is down and will be back soon).
DNS isn't my strong point, but I do know you can do this with MX records...so if the first server fails it tries the next until it gets a working one or reaches the end of the list. I'd just like to do it is A records.
It wouldn't be as simple as setting the nameservers like this would it?
ns1.host1.com
ns2.host1.com
ns1.host2.com
ns2.host2.com
Would it use the host1 nameservers as long as they're online, and if not failover to the host2 nameservers? If so, great, but what if the host1 nameservers are online but the server itself is not.
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Dec 10, 2007
Assume, a DNS failover service would change the DNS from server 1 to server 2 when the first one is offline. This will be changed quite fast, however isn't it true that some visitors still experience a downtime of a couple of hours (saying that the main server will be offline for 6 hours) as their ISP might not update DNS that frequently?
So basically, what is the added value of a failover service?
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Jul 22, 2008
What happens if your primary nameserver goes down? Meaning that it goes completely off the net, not even denying dns requests but completely ignoring them.
I'd guess that resolvers would query the secondary NS after a specified timeout, but what is that timeout set to? Does it differ from ISP to ISP? How much of a slowdown are we looking at for end users?
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Jul 8, 2007
I was wondering what sort of systems have you guys implemented for ensuring your website remains online.
Iv attached a pic of what I think are the best options.
What do you think?
Also, am I correct in my assumptions about DNS?
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Jul 17, 2008
I want to create a subdomain but I want to use a different host on this. How do I do that?
Just to make it clear..
Website.com Points to Hosting company 1
subdomain.Website.com Points to Hosting Company 2
How Do I do that? Is that even possible?
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May 17, 2007
I am using a cpanel for my site.
While I am not using the nameserver of the cpanel hosting for my site.
I am using a 3rd party DNS server to handle the DNS thing.
I directly point www/ftp/mail/... A records to my site hosting's IP address.
And everything works well.
But there is a problem, I don't know how to set up subdomain.
I created a subdomain with my site cpanel.
And it automatically created a root directory for the subdomain under /public_html. ( .../public_html/subdomain/)
But I don't know how to make the subdomain work.
How to set the DNS records to directly point my subdomain to its root directory on the hosting?
I tried to add a A record for my subdomain. But it only direct the subdomain to /public_html the main domain's root directory.
Untill now, the subdomain is still pointed to the same page as the main domain.
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