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50

A single powerful server can only be upgraded so far. Once you have the most powerful server available, your site cannot grow more without splitting it between servers or making it more efficient. There is also the cost factor. A single server that is super powerful may cost ten times as much as two servers that are half as powerful. You want to be able ...


30

From Rear Admiral Grace Hopper: On the building of bigger computers: "In pioneer days they used oxen for heavy pulling, and when one ox couldn't budge a log, they didn't try to grow a larger ox. We shouldn't be trying for bigger computers, but for more systems of computers." source


12

The IP address where your website is hosted has no effect on SEO. Since we're probably only talking about Google here, I found this link about how Google's PageRank is not affected by your IP address (or more specifically, how many websites are hosted at a given IP address). My own theory as to why this opinion has developed is because larger companies ...


10

Stephen explains the major consideration to make when deciding on a systems architecture: the tradeoff in vertical and horizontal scaling. I'll add a few other considerations: Separation of concerns: you mention multiple radically different systems: reverse proxies, DB, content servers, etc. From a maintenance and security standpoint it is clearly ...


8

Size limit. We like to pretend that a single box with multiple processors, memory chips and disks is uniform. This isn't entirely true, but it's true enough if your numbers don't get too big. There are technical limits on heat, energy, proximity etc. which means there'll always be a practical limit on how big a single server can be. Scalability - there's a ...


7

Let's take the problem at small scale. A tiny office with one server running mail, ActiveDirectory, file share, and the web site for the company. Hackers hit it and you have to reboot because IIS is messed up. Or Exchange needs an update and a reboot. Or Active Directory got corrupted. Any of these isolated "one service is down" problems affects the ...


6

Shared hosting means that there are other sites on the same server you are on sharing things like bandwidth and resources. Dedicated hosting means that you are the only one on the server and all the resources belong to you. Usually dedicated hosting is more expensive, but it provides better performance if you need it.


5

Shared hosting Pros: Cheap Fully managed by hosting company Cons You are at mercy of other sites poor performance You are in a restricted environment Dedicated hosting Pros: You have full control of the machine You can set up the web server app whatever you want The performance only depends on your apps in the server Cons You have to ...


5

Without the spike making 95th percentile 129 Mb, it looks like it would have been around 70 Mb - an 85% increase. That's significant, but the traffic alone isn't enough to determine the cause. You will need to bring the server back up (offline, if possible) and examine the log files to tell if it was a DDoS, as there could be other explanations depending on ...


4

You can think of the major difference this way: With both, you are paying for root access, but you'll only get complete use of the hardware with a dedicated machine. VPSes can frequently fall victim to one of the huge problems in the hosting business: overselling. At any given moment during the day, the average customer isn't going to be using all of the ...


4

After consulting the support team, I now have the solution for this problem: /usr/lib/mailman/bin/check_perms -f does all the permission magic in the mailman directories. Maybe this helps someone else with the same problem.


3

Processors with more cores use more advanced technology, that's why they're more expensive. If you add up the processing power, then in theory they're faster, but in practice it depends on you using software that works across multiple cores. More power won't mean much unless you're running computationally expensive operations. It's hard to judge if that's ...


3

Dedicated IP addresses have no effect on SEO as IP addresses in no way indicate anything about the content and whether or not it is relevant for a search query. A site on a shared IP that moves to a dedicated IP, or vice versa, is no better or worse because of that IP address. So the IP address won't affect the ranking of pages. IP addresses may be used, ...


3

You should run WebPagetest on your web page and see where most of the time to render you web page takes place. WebPagetest produces a waterfall diagram that allows you to see where the time to load your page is spent. Here is part of a WebPagetest waterfall diagram and report: For example, if your web page make lots of references to static content and ...


3

You're trying to compare apples to a multi-national supplier of apples and get the latter for the same price as a $60 crate of apples. Amazon's CloudFront offers geographical distribution, tons of fault tolerance, and redundancy. If a drive crashes, your data is probably safe. If the US goes under water, it could be safe as well. With your current ...


3

[Disclaimer: I work for one of the companies in the list below] Since your host is going to provide DNS management, it sounds like your needs are: setting up Apache virtual hosts, managing SFTP accounts, and creating MySQL databases and users. Does that sound right? You can definitely set up your sites manually, but life may be easier (and consequently ...


2

Have you actually got in touch with Spamhaus? They might do white listing on an IP by IP basis. The other option is to change your ISP to one not hosted on a a range that's blacklisted. Edit Have you tried this: http://www.spamhaus.org/sbl/sbl.lasso?query=SBL80808#removal Edit 2 To be completely honest, if you're THAT desperate to get off the spamhaus ...


2

Most hosts offer dedicated IP address as an add-on for their shared webhosting services. For example, WestHost does, and so does HostGator. The reason almost all web hosts offer dedicated IP addresses is because you have to have a dedicated IP to have an SSL certificate. Your assumption about getting better CPU and RAM bursts verses VPS is not true at all ...


2

Check out the Dedicated Server forum on WebHosting Talk. You could also refer to Gartner reports. You also didn't say whether hosting on particular soil (or other "unusual" requirements are important). But you'll see all those kinds of questions asked over and over again in the WebHosting Talk forums.


2

I don't agree with my friends Angio. The location of the server does have a meaning, I'm not not saying it's the only factor, but it makes no sense to have a server in the States, for example, when most of your customers are in Europe - cause even if the bandwidth is good and the server is fast (CPU) it will still be inferior - comparing to a server with ...


2

EZPZHosting PHP: 5.2.15 MySQL: 5.0.92-community Call 0800 862 0331 and ask to speak to Dan (Say Hedley recommended you). Quality service, superb support (they also offer white label support via your WHMCS customer portal so you can offer 24/7 support to your customers) and excellent prices. I have been happy as a pig in muck since moving to these ...


2

really depends what your looking for - download wise, how often the files would be accessed. A simple free solution that you could try is putting them up onto drop box and share the public download link ?


2

You are talking about going into Web Hosting biz. Which is good but you need to ask yourself a few questions before that. Are you ready to take up a new biz which will consume your time 24x7? Are you willing to learn and get into a whole new niche which will take up quite a good amount of time for learning? Starting a hosting biz is just the small part, ...


1

I want to add that on my machine, /usr/lib/mailman/bin/check_perms -f didn't fix everything. When I ran it repeatedly (as root), it kept complaining abut 10 issues (folders/files in /usr/lib/mailman that weren't owned by the user and group list). The following command (ran in /usr/lib/mailman (!)) fixed everything: chown -hR list:list ./*


1

As Ewan already said. The question is if you can spread the workload over the different cores. If you can then more cores are better. This is under the assumption that you have a lot of concurrent requests. If you have only a few concurrent request but every requests will involve a lot of heavy computing then faster cores are better. What I would recommend ...


1

Charles has done a good job of answering most of your question thoroughly. On the last point of cost, it's because the cost of a server is more than just the cost of CPU and memory - there's the case and power supply etc. You can double the memory and add more cores without doubling the cost of the server. You can then set up two VPSs and sell them each for ...


1

You can try this list of Cheap VPS Hosting provider's list. They don't have any straight forward link to compare all the plans, but you still get a very good comparison of various known - unknown VPS providers.


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SquareCompare offers a comparison service with a variety of comparison criteria (advertised with them while working for a VPS hosting company). Note: "Virtual dedicated" isn't a common term (remember seeing it first over at Media Temple - it isn't accurate at all if the server resides on shared hardware) so you might get better results if you're asking ...


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I found site http://www.lowendbox.com/, its not comparison, but it has a lot of blog posts about very cheap VPS hosting.



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