DNS Clustering Over Multiple VPS
May 25, 2009What are the pros and cons of setting of a DNS cluster over multiple VPSes?
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Dns Clustering .. VPS Vs. Dedicated
May 24, 2009I'm not into Dns Clustering that much all I know is some articles and threads about how to do it, and the benefits
Anyway I decided to give it a try 1st with minimum fees
so I want to host my Main domain website on a VPS, as it don't need much resources and using it as a Primary Dns Server
and use my current server as a Slave DNS server that is contain most of my client sites
It's logically possible as I see but..
Is there any Disadvantage? if exist what is it?
Do I have to make both on the same DC?
Will it affect my Slave DNS Server Performance, Stability and Load?
CPanel DNS Clustering
Apr 28, 2008I just set up a cPanel DNS Cluster today. Followed the guide, and everything didnt according to my plan. As in, setup went fine, setting it up went fine too. But I do not think I understood how this solution works in real... or atleast I had assumed it to work in a different way.
So for my questions...
1) How and where do I edit the DNS Zones. On the local system or the DNS dedicated server?
2) How do I create nameservers for this dedicated DNS server? Not the registrar part, but the A record and NS record part.
3) Small doubt, not a big one. Does the DNS server have to be in stand alone mode or synchronized mode?
Server Clustering
Aug 25, 2007I am trying to setup a server cluster for my client and was thinking about load balancer.
Currently he has 4 Servers and 1 VPS.
4 Servers are in the same datacenter while VPS isn't.
Now from my thoughts about the system load, I have decided to setup like this:
VPS being the load balancer
2 Servers being the Apache
1 Server being Storage server
1 Server being MySQL
This will be hosting two forums that has very high concurrent access.
Now the problem is VPS has only 200GB/mo bandwidth while he needs about 800GB total.
My question is is there anyway to load balance the servers without the traffic going
like this:
LoadBalancer-->Apache Servers-->LoadBalancer-->USER
If the traffic goes like that then VPS needs to have about 1600GB bandwidth and will have network bottlenecks.
I would like the traffic to go like the following:
LoadBalancer-->Apache Servers-->USERS
Cpanel DNS Clustering
Jul 18, 2007I'm currently using Cpanel on all our web hosting machines (total of 6 machines). Each runs its own DNS but also uses the Cpanel cluster feature to sync between all machines.
This has got to the point where DNS updates will not stay, the machines get very lagged etc etc. Now I have put 2 more machines online to do nothing but DNS.
What is the best way to set this up?
Clustering Vs Load Balancing
Sep 9, 2007Our server is going down due to several reasons. We decided use load balancing or clustering solution. What are the main difference between load balancing and clustering?
View 5 Replies View RelatedDedicated Server Clustering
Jun 20, 2008Im going to start to plan to build a new hosting setup within my business and aim to slowly move away from the shared hosting scene and move into clustered (web hosting)
Now im not great with words so i am sorry if any of this doesnt make sence.
Im looking to build a setup using 5+ Dedicated servers, using a cluster config and using something like plesk on top to offer high availability hosting. As i understand it using a clustered setup will provide a much higher chance of keeping 99.9/100% uptime as it eliminates a single point of failure.
But what im un sure on and what ive not learnt about yet is what is needed to make this work, what kind of software is involved and how would the Hard-drive arrangement work. For example
If each server had 5 Hdd's in Raid5 totaling 1TB Space and there was a total of 5 servers, would there still be 1TB space overall of does it work slightly different to that?
CPanel DNS Clustering And Redundancy
May 5, 2008I am working on setting up a few servers that run cPanel and the usual software, minus any sort of DNS server. These servers are setup to sync all DNS records over to a cPanel "Dns Only" (ns1.domain.com), which in turn syncs all its records to a backup DNS server (ns2.domain.com).
In other words:
[Domain registrar]
| |
[NS1]--Sync-->[NS2]
|
(Sync to NS1)
|
Cpanel Web Server
Now, say something happens to NS1 and the sever goes completely offline (i.e. power supply dies, CPU goes bad, etc.), which of the following scenarios would actually happen:
1) Because the registrar lists both NS1 and NS2 as NS records, NS1 would time out and the DNS lookup would look to the secondary DNS (NS2) for the record.
2) The registrar would randomly give out NS1 OR NS2 because of round robin, and if NS1 is given to a client as the result of a DNS lookup, the site will appear down, however if the client happens to be referred to NS2, the site would appear online.
3) The site would be down no matter what.
So, if someone with knowledge on the subject wouldn't mind enlightening me as to which of those would actually take place in the event of a failure on NS1, and maybe some suggestions as to keeping the DNS truely "redundant", then I would greatly appreciate it.
And Im aware that there are many 3rd party services that will take care of the DNS records and make them redundant (DYNDNS, DNSMadeEasy, etc) But I would prefer to keep the DNS in our full control.
Session Clustering With Apache/PHP
Feb 28, 2008Is there any alternative to ZendPlatform's session clustering? ZendPlatform seems to be very easy to manage.
View 0 Replies View RelatedFailover Or True Clustering
Oct 23, 2007I have been searching and searching for a solution. We are currently using one single vps to host some of our clients. We are finding more and more that we need to have some redundancy.
I have looked at using DNS failover using RSYNC/mysql replication etc with two servers, but just dont like the idea.
I have also looked at hosts like imountain etc that use h-sphere. I dont like this setup because services are split onto single machines. For example mail is done on one single server, therefor if that server is down, mail is down.
What I am looking for:
I am trying to stay in a budget of 150/month or less.
I would like to get one of the two options here:
option 1: two vps's or dedi's that technically act as one(a true cluster) then on top of that is OS and control panel and done. This solution doesnt allow for whole datacenter outages, or network issues.
option 2: Two geographically placed vps or dedi's that are somehow either load balanced, or failover.
Ultimately our goal is to have high uptime, but we dont really have much server load.
Basically failover is ok as loads are always low anyway, but if we are paying big $$ it would be nice to have it load balanced.
Please let me know if my expectations are way to high or my price is way too low. I need to find a solution here somehow and if I cant find anything will most likely just go with DNS failover.
Switch For Clustering System
Nov 6, 2007I am going to build a clustering system for a customer. It's around 15 servers running apache, mysql and mail. Wondering which switch do you recommend for that? I am using a HP Procurve 2524 for another smaller system, but customers face to slow performance *sometimes*
For the feature, dont need much. Dont need routing feature (Layer3 switch?), just to connect all of them into a clustering system.
DNS Clustering Question (windows & Linux)
Mar 29, 2009I have a 2 cPanel DNSonly cluster setup for all our hosting operations.
However, we are adding a Windows Domain Forest (for Outlook "push-mail") for this the windows server needs to be its own DNS server. We are also planning to host sites on the windows server (no control panel).
Is there any way that I can allow cPanel to use Windows DNS as the new "cluster" and update/delete/add records of DNS to the windows machines?
Same would apply to this question, we are thinking about adding a Directadmin test box, but we want to keep our NS1 and NS2 cluster so they all work with it. Is it possible? What is the feature called if you can't elaborate on it so I can research it?
How Much Overhead Comes From Clustering / Separating Out Services
Sep 21, 2007So would the load times be noticeably longer if I ran load balancers, and then had my web servers nfs mounted to file servers / san and connecting over the network to database servers? It seems like a lot of network overhead to deal with.
View 2 Replies View RelatedRecommendations For High-performance Hosting (clustering)
Jun 14, 2008I'd like to get your recommendations on how I should approach this problem. I posted this in another part of the forum, but I feel that this is a more appropriate place for it.
Problem:
How to handle large amounts of traffic with for a social network website? If a user uploads a photo or video, how does it become accessible on all of the server? If traffic is expected to be about 500,000 visitors a day, how many machines do you think I should use?
Possible Solution:
I've come up with the following possible infrastructure.
One load balancer. The load balancer has 3 PHP/Apache servers behind it. Behind each of the PHP/Apache servers is a (slave) MySQL server, from which data is read. Behind the slave MySQL servers, there is 1 master MySQL server, which handles all of the database writes. The master MySQL and slave MySQL servers are synced up, so data is up to date.
The actual photo and video files are not stored in the database, only the links to them is stored in the database (to keep the database small). The photo and video reside in a central location (like a SAN or NAS), which is accessible by all of the 3 PHP/Apache webservers.
Questions:
1. How many machines do you think will be able to handle photo and video uploads for 500,000 visitors a day?
2. Is having a SAN with Terabytes of RAIDED disk space an available option?
3. If a SAN or NAS is not an option, does anyone have any ideas on how to make sure all of the web servers have access to the same photos and videos? Is rsync a viable solution?
4. Which hosting provider do you think I should go with?
5. Is clustering what I need? What is clustering and how will it address my concerns?
Recommendations For High Performance Hosting (clustering)
Jun 14, 2008I'd like to get your recommendations on how I should approach this problem.
Problem:
How to handle large amounts of traffic with for a social network website? If a user uploads a photo or video, how does it become accessible on all of the server? If traffic is expected to be about 500,000 visitors a day, how many machines do you think I should use?
Possible Solution:
I've come up with the following possible infrastructure.
One load balancer. The load balancer has 3 PHP/Apache servers behind it. Behind each of the PHP/Apache servers is a (slave) MySQL server, from which data is read. Behind the slave MySQL servers, there is 1 master MySQL server, which handles all of the database writes. The master MySQL and slave MySQL servers are synced up, so data is up to date.
The actual photo and video files are not stored in the database, only the links to them is stored in the database (to keep the database small). The photo and video reside in a central location (like a SAN or NAS), which is accessible by all of the 3 PHP/Apache webservers.
Questions:
1. How many machines do you think will be able to handle photo and video uploads for 500,000 visitors a day?
2. Is having a SAN with Terabytes of RAIDED disk space an available option?
3. If a SAN or NAS is not an option, does anyone have any ideas on how to make sure all of the web servers have access to the same photos and videos? Is rsync a viable solution?
4. Which hosting provider do you think I should go with?
5. Is clustering what I need? What is clustering and how will it address my concerns?
Hyper-V, Clustering Windows 2008 Servers And Microsoft Licensing
May 23, 2008I currently have a server (Xeon 1x5310, 4gb RAM, 4x500gb hdd in Raid 10) with Windows 2003. Now do to a project I'm looking at installing Windows 2008 and upgrading to 2x5310 and 16gb of RAM on my server.
I'm looking to create a virtualized test environment for development of a new web service I'm working on. What I'm looking to develop right now is 2 file servers, 3 web servers, 3 MS SQL database servers and 1 DNS server (would prefer but not sure if hardware can handle it. Virtualization would be ideal as this is very similar to what we believe will we have when we launch the service.
I have a few questions I'm hoping you might be able to answer:
1) With the upgraded hardware specs, should it be able to handle the load if I assign each virtual entity 1 core with 2gb of RAM each?
2) I would like to create each of the multiple servers in a cluster (ie cluster of webservers) as this is how it will be in production. But, I've never worked with clusters before so:
a) where can I learn about clustering windows 2008 servers?
b) is this possible to do in a virtualized environment?
3) How does MS work the licensing? I want to have each server running Windows 2008 and 2-3 of them running SQL Server 2005.
a) Do they charge extra for each virtualized server?
b) Does this mean I have to purchase 3 complete copies of SQL Server or is there a way I can pay a low license fee for use in a non-commercial, non-production environment?
4) Does anyone see any problems with this setup or have any suggestions for me?
* I do have money available to spend on a good solution, so if you have suggestions that cost please let me know. I just thought virtualization would be the way to go as the project will be in development for at least a year with no public access.
** I realize that Hyper-V hasn't been released yet (that I know of) so information on it might be limited
Plesk 11.x / Linux :: Multiple Email Certificates For Multiple Domains?
Nov 11, 2014I have two domains as virtual hosts on same IP address.
I am getting certificate error for the second domain when I try to check email (using MS Outlook). I can't permanently "accept" certificate, it complains again and again. Certuficate I created and self signed for imap.domain1.com, but the second email server is imap.domain2.com, so it complains.
How do I set separate email certificates for two domains? Is it possible at all?
Apache :: Multiple Error Codes For Multiple Pages
Nov 9, 2012Depending on where u are at on my site (documents pages, training, main root, etc.) will depend on which type of background, footer, header and the like you'll get. Now I was thinking. Is there a way to have multiple error messages for more then one page depending on where you are at on a site? Right now it's intranet site and a modded snitz forum. What is the code and were does it go and in which apache conf file(s) does it go in?
View 1 Replies View RelatedMultiple Php.ini
Sep 20, 2007IIS does not support .htaccess, as we all know.
So I am wondering if it is possible to use local php.ini files for each site on IIS?
Multiple IP Hosting...
Apr 27, 2009I am looking for a multiple IP hosting solution for our network of 10 sites. Ideally I'm hoping to find a host which will allow me to consolidate all of our sites within one control panel, but be able to offer each site to be hosted on a unique class-c IP so that we can enhance the benefit of inter-linking between sites.
If you can suggest a solution beyond www.seohosting.com that would be fantastic.
Multiple IP Addresses...
Jul 7, 2008Have been hosting with Site5 for the last few years, and have been very happy. I have a number of websites, it's easy for me to add another one (the domain points to a subfolder but the address acts like a 'real' domain if you type it in), they have everything I need and are cheap.
The downside is all my sites share an IP address. I'm either looking for some hosting at a few dollars a month tops (shared is fine) with PHP / MySQL, or an account that give me the ability to add as many domains as I'd like, and if necessary, give them all unique IP addresses.
Basically, I'm just looking to protect myself from anyone doing a reverse IP check on the domains. I suppose the ideal situation would be one where I could control / see stats for all my sites through one control panel, and just have the ability to buy another IP address when needed, and if I don't need to, share one IP with multiple sites...
I guess worst comes to worst, some cheap but reliable hosting (with someone that isn't going to mess me around or fold in 6 months time) where I'm going to share an IP with another few hundred sites would be acceptable...
A Multiple WAN Router
May 17, 2009I am looking for a good router which will handle two separate WAN connections and bridge them together. Basically, we have DSL at our office (1.5mbps down / 769kbps up), its the only service we can get, cable is not offered, and a T1 inst fast enough and costs too much. We require a faster connection, doing Skype, VPN connections to servers, desktop sharing etc.
Basically we want to order another DSL line 1.5mbps down / 768 kbps up and join it together with our current DSL connection for a total of 3mbps down/1.5mbps up.
Just want to make sure this is possible and if you guys can recommend a router brand and model. To clerify, we don't just want redunacy/fail over, we need to utilize both DSL connections at the same, as if they were one.
Multiple Servers
May 19, 2009I currently have 2 web servers both running the cPanel Control Panel.
Out of the two servers only one is used and the other is just used currently to test scripts. It has come to a stage with the website capacity that I now require both servers to run in con-junction with each other to spread the load.
Questions:
1) There is a file upload service, How would you go about networking both the servers to allow remote removal / uploading of files to different servers. Eg, If user is on server 1 and files are stored on server 2. Also deletion of files etc - The website is programmed mainly in PHP.
2) File updating - The website is constantly being updated and therefore both servers will need the PHP files to be in sync. How would you go about doing this?
Both servers are at the same Data Center location.
Multiple Sites
Feb 22, 2009i currently have 2 webhosting providers but want to consolidate to one acct at one host with a bit better load times...
1. JaguarPc - i have two accts with them
a. i have a shared acct with them currently - i believe its called the gigadeal (something like $10 a month). i have been with them since 2000, pretty decent host not too much downtime. support is "ok" when needed.
currently i have 3 smallish websites hosted on this one acct, they dont get a lot of traffic. two of them are using wordpress one is just a static html site.
i did a look up and found the server has about 130 sites hosetd on it. so not too bad in regards to overselling. however my big problem is the site takes about 900-1500ms to generate a page. this seems to be pretty often. again the sites dont really draw that much traffic. so thats not the problem here.
b. i also have one of their freedom vps accts with upgraded ram and bandwidth. i only have one site hosted on it. this site used to get about 500K+ unique visitors a month. at its peak we were serving around 1tb bandwidth a month... i know we ran the vps hard but considering we wanted to stay under $50 it worked well. there was of course some downtime due to the massive traffic - [we serve up a popular flash cartoon website].
2. Hostgator - babygator plan
this host only serves up one wordpress site - the site isnt very well known yet, but the site is growing each month. the funny thing is that when i looked up this server there was about 830 websites hosted on it - obviously oversold and crowded. support really sucks here imho. however, the page load time is anywhere between 250ms to 500ms a lot faster than JaguarPcs. which is crazy since jag has much less sites on the server...
im looking to basically consolidate the websites that are on both shared plans. my original thought was to keep them all on my shared hosting acct at jaguarpc (the one with the 3 sites). obviously i cannot add them to the vps since its pretty active. also the vps is business and the other sites are all personal. and i dont want them to mix so to speak.
i am currently spending about $20 a month between the two shared host plans. im looking for some recommendations as to where to move -- where speed isnt such a big problem, and i can maintain one acct. it would be great if i could host these sites all for around $20 - hopefully without much lag.
was thinking mediatemple - but after reading so many negative posts here about them - im not sure...
KVM Over IP For Multiple Servers
Mar 9, 2008We are looking for KVM/IP solution for multiple server. Where we can add the users remotely and give temporary access to the server owners. Once they are done we remove them from access list. So it can be used by someone else.
Anyone know for KVM/IP solution with kvm switch which can solve our purpose of KVM.
Multiple Servers - DNS And NS
Jun 17, 2008I currently have two servers, one is rhel 5 with cpanel, the other is windows 2003 with plesk 8.4
Each server wants you to setup a Hostname... one that is FQDN but not being hosted on that server so I setup a generic dns domain as follows...
SERVERCODNS.COM
Now for the hostname I setup both servers to be use this domain but different prefix... so...
SERVER1.SERVERCODNS.COM
SERVER2.SERVERCODNS.COM
Is this ok? Will I have problems?
My cpanel continues sending me emails nightly that my DNS is routing to another ip?
which bring sup my next question...
Is is ok to NS1.SERVERCODNS.COM, NS2.SERVERCODNS.COM for say the RHEL server and then DNS1.SERVERCODNS.COM and DNS2.SERVERCODNS.COM for say the windows? Is this going to cause problems?
Whats the difference or proper procedure for setting up DNS with my registrar (*ENOM) vs in the control panels they have Nameserver tools?
Multiple DNS Servers ...
Aug 25, 2008if it is possible to use more than 2 regular DNS entries across 2 hosts? So if a site goes down the other host picks it up?
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