Configuring Your Server To Survive The Digg / Slashdot / Web2.0 Effect
Sep 12, 2007
I learned the hard way last year when my website (on GoDaddy shared hosting) made the front page of Digg. GoDaddy suspended my account in a hurry (and didn't bother to inform me, but that's another story). I'm planning to get a VPS account with SLHost to prepare for future traffic growth.
How should I configure the server to best handle a huge spike in traffic? From what I can gather, there are a number of factors:
- Max HTTP connections (MaxClients in Apache)
- Max number of open file handles allowed (a kernel thing)
- Virtuozzo allowed TCP connections
This post at webhostingtalk.com/showthread.php?p=4552677#post4552677
by Josh at SLHost outlines the defaults for their VPS servers:
Quote:
Are you referring to HTTP connections or other? By default, the MaxClients setting is at 256 clients and would need a recompile if you want more. The number of open files allowed is set to 1024 by default and can be raised. There are also Virtuozzo allowed TCP connections, which is set at 1200 and we've noticed that anything more than that should either be on an Enterprise VPS package or low end dedicated server at least.
Should I do any tweaking to the defaults if I want to survive another Digg onslaught?
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Nov 1, 2009
Which VPS package would I need from Host Gator to survive a front page Digg?
[url]
Would a level 3 work?
Running wordpress with the wp-super cache plugin.
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Apr 27, 2009
if there is a way to detect traffic spikes using weblogic server logs and depending on traffic load redirect to a static page, or load the dynamic page.
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Nov 8, 2009
I currently pay $9.99 USD per month for a dedicated server to host my little news site.
The specs are 667mhz / 256Mb ram / Centos / about 20-40mbit BW on a shared 100mbit port.
Anyway, I have a possibility to have one of my articles dugg soon, as It may become popular and I am wondering.. is there anyway i can tweak this box to survive DIGG?
I'm using wordpress at the moment, with lighttpd and mysql and I could possibly just make it a static http page I guess for the digging.
I think that even with lots of tweaking and serving a static HTML page, it may still die.
SO, anyway..
My maximum budget is approximately $25 USD per month, but I'd like to spend less, ideally.
Do you think I should A) get a 2800+ sempron / 2.8ghz p4 with 1GB of ram and unmetered 10mbit / 100mbit with 1.5TB
Or shared hosting? Or a VPS? or what?
OR just stick with what I have now?
Basically it will just be news articles / blog type stuff + some images.
The reason I say 10mbit unmetered is at least I know what my bill is going to be etcetc.
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Sep 30, 2007
My site will be powered by drupal and I want to know if a vps under $30 can handle instant and huge traffic that comes from digg
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Jul 10, 2008
Please share your experience about having your site dugg.
What hosting solution will be the best shot for the traffic-intensive site? Are there any shared hosts that allow to survive the digg effect? Might a shared plan with unmetered bandwidth nad disk space be the way out? I'm talking about the Deluxe Plus type of plan from webhostgiant.com deals.
[url]
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Sep 16, 2007
Attacking multicore CPUs
[url]
[url]
"The Register reports that the world of current multi-core central processing units (CPUs) just entered is facing a serious threat. A security researcher at Cambridge disclosed a new class of vulnerabilities that takes advantage of concurrency to bypass security protections such as anti-virus software The attack is based on the assumption that the software that interacts with the kernel can be used without interference. The researcher, Robert Watson, showed that a careful written exploit can attack in the little timeframe when this happens, and literally change the "words" that they are exchanging. Even if some of these dark aspects of concurrency were already known, Watson proved that real attacks can be developed, and showed that developers have to fix their code. Fast..."
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Jul 27, 2009
I've been browsing Google and have learned a lot about how to read stats and what to look out for. However I'm not understanding what effects what.
We've increased
max_user_connections from the default 25 to 50 and
max_connections from 500 to 1,000
What area would this effect, RAM? CPU? If I'm having issues with CPU during my heavy load times, What should I look to optimize on our web site? We also disabled gzip on css/js files to prevent the server from over-working.
I've also run into the Today's stats for the server. Can someone tell me more about the part:
Quote:
Top Process%CPU 29.0/usr/local/bin/perl -w /usr/share/munin/munin-update
Top Process%CPU 28.0/usr/local/bin/perl -w /usr/share/munin/munin-update
Top Process%CPU 27.0/usr/local/bin/perl -w /usr/share/munin/munin-update
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Aug 26, 2007
How well would a website do if it was featured on d-igg with these specs? (assuming it was the only site on the server)
Xeon 2.8, Quad core 4mb cache
4gig RAM
2x73gb SCSI
2,500gb b/w
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Oct 25, 2008
I'm hosting proxy sites on my vps and untill yesterday my proxy worked fine with no problems at all.
But while going trough my server graphs I found it odd that I had 0 bandwidth since the middle of yesterday.. I first supposed that this was due school's out [url]but this wasn't the reason I found out!
I tried testing one of my proxies to see if it was still working, but with any URL I try to visit I get:
The requested resource could not be loaded. libcurl returned the error: Couldn't resolve host 'www.google.com'
I suppose the DNS server crashed?
I already restarted the VPS 3 times including the DNS Server.
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Oct 13, 2007
In my cpanel server, a site is getting too much traffic.
The bandwidth usage is some 60 mbps because the site is in digg home page, the site provide some file downloads.
I don't want this site take too much bandwidth, other sites on the server is getting dead slow.
Is there any way to limit usage by this web site?
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Dec 22, 2007
Actually my DSL provide me 1024 kbps of Internet Access. I am wanna connect computers to that network and rent the pc in my own country.
Here the features of that I have:
- 2 Desktop PC ready for connect.
- 1 router with 4 lan Port.
- 1 Dynamic ip
- 1024 kbps of Internet connection.
the desktop pc will be configuring with Centos 4.x and I wanna install on it a control panel like directadmin.
Here the issues:
- How I can configure 2 statics ip for each desktop pc?
- The desktop pc will be connected every one in the same router?
- How I can know how will be the rendiment with 1024 kbps?
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Nov 6, 2008
What type of hosting account i need to choose for a digg like news service(or social bookmarking). Is Bluehost enough ?? They have unlimited data transfer/domains/space near 6$ /per month. What other factors should be considered for a file hosting or image hosting site??
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Sep 22, 2008
I have setup php and mysql on a windows IIS 6 server. php has installed fine and works but I have 2 problems
1. When i browse to http://localhost i get a 403 error but when browsing to http://localhost/index.php it works fine. It makes me think that the server does not know what extension to default to when doing a directory listing
2. I have phpmyadmin installed and the cfg file is set to do a 'config' authentication. That works but everytime i go to submit a form to create a new database or anything i get prompted with an HTTP user/pass. I'm not sure if this is a phpmyadmin issue or a php configuration issue
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May 11, 2007
I provide webhosting services (mycompany.com) to clients and I need some help regarding setting up my second server.
Till the domain name resolves, new clients are given the temporary url mycompany.com/~accountname where the A record of mycompany.com points to the main server i.p. of the first server
I am in process of setting up my second dedicated server.
mycompany.com/~accountname will not work on the second server as the I.P. of mycompany.com points to the first server.
How do I setup my company's url on the second server so that clients can access their accounts by mycompany.com/~accountname?
How do you setup accounts on both servers under mycompany.com.
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Feb 3, 2008
I have a server with the following specs:
Intel Core2Duo 6550
2x2 GB DDR2 RAM
2x500GB 15,000 RPM SCSI drives
Fedora Core 7
It's on a FDC Servers 1gbit connection with a 100mbit guarantee, their largest plan. I've used this plan (though with another server) before to push 241mbit/sec so there should be plenty of bandwidth.
The downloads will be anywhere from a few megabytes to CD sized downloads so there might be quite a bit of large files, mostly files will be around 20-50 megabytes though.
Basically I'd like a sort of rapidshare setup with two types of members, premium and non-premium.
Non-premium members should be limited to a certain speed across all connections but not necessarily limited to one connection only since Asia and Europe traffic have a hard time getting really good speeds without using several connections.
But I'd still like to be able to limit them at 4 connections or so, premium members should just be limited at some other value, that part shouldn't be the problem.
Currently I can limit the speed through the php script that checks if a user is premium but that limit only works per connection and not across all connections.
I'm looking for a software configuration setup, httpd etc. Hardware upgrade suggestions are also welcome for the future.
So far I'm thinking setting up two virtual hosts, one for premium and one for non-premium and then use mod_limitipconn.c. But maybe there's a better way without using apache?
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Nov 29, 2007
we have 2 server
on the first server we have setting 2 account
myaccont.com
and
my1.myaccount.com
are 2 difference account
Now, on the second server, we must config account
my2.myaccount.com
--
On the second server we have config my2.myaccount.com as account On the first server we have modify dns of domain myaccount.com with
my2.myaccount.com 14400 IN A xx.xx.xxx.xx
where xx is ip of second server
--
Seems work but there is any problem
For example ping to www.my2.myaccount.com give error, ping to my2.myaccount.com is ok..
Why?
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Mar 24, 2008
Since I have never worked on the server end of things I had a quick question for all you web hosting gurus.
Is it possible to have PHP installed on ONE single server and still have the ability for the server to work with both MS Access AND MySQL at the same time?
I would think YES, but I am being told by our server branch at my current job that this is not the case. They claim there is no way for the server on one machine to be able to handle both types of databases. Are they right?
If they are wrong and it is possible to have one server run both type of databases, what steps would be necessary to set up the server to handle both types? Do we need to tweak the php.ini file or is there another method of allowing the server the ability to work with both MySQL and MS Access.
Sorry if this question seems stupid or odd, as I said, I have minimal experience on the server end but I am confident that a server can handle both.
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Jan 23, 2008
Please pardon the "newbie" nature of this post. (Due to circumstances outside my control, I've had management of a Windows Server 2003 VPS thrust upon me, and I'm feeling like a fish out of water!)
I have finally abandoned any hope of getting phpmailer to work with Joomla 1.0.13, so I've decided to configure the POP3/SMTP features of my server so that I can use Joomla's SMTP mail service. (Joomla's SMTP option is limited to port 25 and cannot use ssl.) Anyway, I've tried to set up my POP3 and SMTP services, but I must be doing something wrong. I have both services set up with my registered domain name -- and a check of the DNS in the SMTP setup comes back OK. However, if I try to use my domain name as my SMTP and POP servers in Outlook Express, the program times out while "looking for host." If I enter "localhost" or my IP address (numeric) as my mail servers, I get a dialog box asking me to log in. However, when I try to log in -- using my administrator name & password -- it doesn't work.
I should probably stress that I'm using SERVER 2003, not an EXCHANGE server for this. I have need for one, whole mailbox to make my stupid contact form work, which is why I'm doing this in the first place. If this doesn't work, I'm going to create my own contact form in html, throw it into a joomla content page, and use the phpmailer script to send it manually. Not ideal, as it will always go to the same mailbox, but I'm getting to the point where I DON'T CARE ANYMORE!
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Apr 2, 2008
I had made a website which name is uscarland.com it is very attractive site therefore I had got Google Page Rank 3 But Now our site have losted Page Rank. Last weak I changed our DNS .
Can DNS effected on PR?
I wanna ask from you why I have losted our Page Rank.
when I searched my site at the google then google show it But I try to open then my site is not opened ? why
When I opened it directly then it will opened? How can Possible?
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Oct 22, 2008
I'm reading about the fail-over system on precision effect's site, but am not 100% clear on a few points. Their live chat isn't active right now and I'd kind of like to hear from someone that actually uses the service anyway.
If there's not anyone who knows for sure, I'll just ask their live chat later on when their awake
Is their fail-over system actually a load balancing cluster comparable to cartika's hsphere plans?
I'm trying to decide between checking out cartika, precision effect, or opening another account with medialayer just for a couple more domains. Between the 3, price isn't really a concern, since the package I'd order from each, with addons and such comes out to within a dollar or two of the others.
Medialayer has been great, and I'll keep my site with them, but I have a couple other sites to put up, and am kind of drawn to the clustered solutions for max uptime per dollar.
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Dec 10, 2007
I was searching for the web hosts that could survive the ****.com effect then I researched myself to compile this list of Web hosting providers that survive it. Web hosts that survive the **** effect
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Sep 26, 2007
I want to ask about suexec.
Currently I disable suexec in my dedicated server.
Which is better, to enable it or not?
What will happen to existing sites folder permissions if suexec is turned on?
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Sep 12, 2008
It has been a little while since I have frequented here, but I thought it was time that I step in here and offer up a review of Precision Effect over at www.precisioneffect.com after moving to them this past February. I have now been with Precision Effect for approximately 7 months.
I had been with a previous host, A Small Orange since June 2006, and it seemed that at least once a week I was seeing 20 to 30 minutes of downtime. After awhile, I got used to it, thinking that that is just what happens with your web host. Well after things continued to worsen over time, it got worse during the winter (end of 2007/early 2008), and I was having a number of up-time problems, including a day and half of downtime at one point (that I had posted about previously here: [url].I was finally fed up in February after I had to email their support services for a few days straight to continue to fix things.
Needless to say it was time to move as my site was growing in popularity and as I run an official message board for a #1 New York Times Best Selling Author (that I fund on my own), I felt it was only right to move to a more professional host that had better up-time and customer support.
Precision Effect is where it is at!
They completely took care of me during this stressful move from one host to another and did the complete transfer for me.
I have had a few questions here and there (very minor in nature), and they have always provided me with a professional and caring response (no matter how minute or how stupid I may have sounded to them). To me, this is a company who takes care of its customers.
The members of my site, never knew this, but one day after I was completing an update on my site, I made the mistake of deleting a directory on my server, that I believed to have been a backup file on my server, and wiped out my entire site! In ten minutes my site was backup and running from one of their backups...I don't know how they did it, but I didn't lose one post on my board!
If you are looking for a company that offers amazing up-time, professional, caring and courteous staff who will take care of you, then this is the web host for you! If this company continues to operate the way that they have for me for the past 7 months, then they have a customer for life.
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Dec 29, 2008
This week I am about to pay for my 3rd year at Precision Effect. (Since December 2006) I've had several hosts in the years before, but after signing up for Precision Effect (heard about them on WHT), I have had absolutely no reason to change.
When I first signed up, I was worried that I would have to manually upload all the files to precision effect by first downloading them to my computer and then re-uploading them to Precision. After chatting with their tech support, however, I was able to give them a link to a rar file on my previous server which they downloaded directly to the new server and decompressed for me. They even ran a database restore with a backup file from the old database server. I could have done this myself (as I'm sure most of you could) but I really liked to see that the tech support took the time to get me settled in, especially since (at the time) I was only paying about $20/year. Past hosts would have just brushed me off.
In the past two years, I only had to contact tech support twice. Both times, I received an almost immediate response to the email (I usually email late at night) and it really felt as if they were dropping everything to fix my problem.
I'm still on one of their older (not their "LiteSpeed") servers, so I can't attest to the speed of the new ones, but my server has always been very fast. My websites are a bit graphics/database intensive and I've never had load time issues. I've also never had unscheduled downtime (a couple of times they would have some small amount of downtime for upgrades) that my "downtime detector" found, though its accuracy is only about once every 15 minutes.
So, this is a long-winded review, but Precision Effect is highly recommended!
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Dec 10, 2007
I've been reading more and more posts about how a quality network card is important. We build all of our servers from new, quality parts but honestly we always rely on the built in NIC on the motherboard (which are brand name motherboards, but nonetheless)
How can a lesser quality NIC effect a server other than total failure of network activity? What signs should we look for and what are quality brands? My first guess is dropped packets or low throughput. I've also heard of people saying that load can go up from a bad NIC - is there any truth to that?
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Jul 20, 2009
i have a cpanel server with centos,
and i put a script on it,
and i get the error
-----------------------------------------------------
Warning: Unknown: Your script possibly relies on a session side-effect which existed until PHP 4.2.3. Please be advised that the session extension does not consider global variables as a source of data, unless register_globals is enabled. You can disable this functionality and this warning by setting session.bug_compat_42 or session.bug_compat_warn to off, respectively. in Unknown on line 0
-----------------------------------------------------
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May 12, 2008
I've been scouring various hosting review sites trying to get a feel of what might be the best fit for me. After reading a few reviews on the WHT forums, I'm down to a choice between Fused Network and Precision Effect. It seems like both are equally preferred by the users here, but I haven't been able to grasp what might be the best fit for a personal site. I don't anticipate needing to upload any massive media files, but I'd like to have the option. The site would mainly be used to showcase my web work, and probably aggregate information from different social networking API's (e.g. Twitter, Tumblr, Flickr).
Some of my questions I have are:
What are the advantages of cPanel over Plesk?
Is 20GB bandwidth a reasonable amount if I'm expecting to be dugg once in awhile?
Is performance/page-loading time noticeably better due to PE's accelerated PHP environment?
Maybe this is overkill for a personal site, but I'd like to find a reliable host that I can stay with for over a year while I construct my online present from the ground up.
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Dec 17, 2007
Just wondering... When I set my A-name records in my Domain-provider control panel, it takes almost 24hours to take effect sometimes, yet other times it can be almost instant...
I was just wondering, from a technical point of view, why this is. Does anyone know?
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Nov 28, 2007
I have 2 ecommerce sites now hosted at 2 different shared locations, both sites offer same exact products and pricing. I am in the process of elancing out the recode/rebuild for both sites to share one mysql database, cart and to be housed together in one VPS.
I plan to put them both on 1 windows VPS (they are asp) each with its own separate IP but have heard this can cause problems with search engines especially google. I have great natural organic right now (1st position for 5 of my demo keywords) and dont want to put that at risk but getting really tired of 2 separate backends, carts, hosting etc..
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