Любой полезный ресурс рано или поздно выходит за рамки «shared hosting» тарифов и владельцы ресурса начинают поглядывать в сторону VDS, выделенных серверов и облачных решений. Из нашего доклада Вы узнаете: - стоит искать другого хостера или уже пришло время переезжать на выделенный сервер; - о выборе площадки для аренды или размещению своего сервера; - о выборе ресурсных характеристик сервера, подборе и конфигурации ПО; - что делать дальше, когда сервер установлен. Многие моменты доклада будут украшены реальными примерами из опыта работы компании «IT Patrol inc.»

1. Drupal Server
Anatomy
Presented by IT Patrol inc.

2. Gold Sponsor of
DrupalCamp Kyiv 2011

3. Silver Sponsors of
DrupalCamp Kyiv 2011

4. Plan
• Should I look for another hosting
company or it is time for a dedicated
server
• How to choose hosting company for
dedicated server
• How to choose dedicated server for your
needs
• What next ?

5. Possible “Overload” Reasons
• Bots indexing your website
• DDOS attack
• Habr-effect
• Drupal modules with known
performance issue
• The problem from theme part of drupal
• Your website actually grew up and need
more resources

6. Bots Access Log Example
*** [11/Apr/2011:03:39:09 +0400] ******* Googlebot/2.1
*** [11/Apr/2011:03:39:10 +0400] ******* bingbot/2.0
*** [11/Apr/2011:03:39:10 +0400] ******* Googlebot/2.1
*** [11/Apr/2011:03:39:10 +0400] ******* YandexBot/3.0
*** [11/Apr/2011:03:39:10 +0400] ******* msnbot/2.0b
*** [11/Apr/2011:03:39:11 +0400] ******* YandexBlogs/0.99
*** [11/Apr/2011:03:39:12 +0400] ******* Yahoo! Slurp
*** [11/Apr/2011:03:39:12 +0400] ******* YandexAntivirus/2.0

7. List of Bots that is NOT important
Casper Bot Search Alexibot Art-Online asterias BackDoorbot Black.Hole BlackWidow BlowFish
botALot BuiltbotTough Bullseye BunnySlippers Cegbfeieh Cheesebot CherryPicker ChinaClaw
CopyRightCheck cosmos Crescent Custo DISCo DittoSpyder DownloadsDemon eCatch
EirGrabber EmailCollector EmailSiphon EmailWolf EroCrawler ExpresssWebPictures
ExtractorPro EyeNetIE FlashGet Foobot FrontPage GetRight GetWeb! Go-Ahead-Got-It Go!
Zilla GrabNet Grafula Harvest hloader HMView httplib HTTrack humanlinks ImagesStripper
ImagesSucker IndysLibrary InfonaviRobot InterGET Internet Ninja Jennybot JetCar JOC Web
Spider Kenjin.Spider Keyword.Density larbin LeechFTP Lexibot libWeb/clsHTTP
LinkextractorPro LinkScan/8.1a.Unix LinkWalker lwp-trivial Mass Downloader Mata.Hari
Microsoft.URL MIDown tool MIIxpc Mister.PiX Mister PiX moget Mozilla/3.Mozilla/2.01
Mozilla.*NEWT Navroad NearSite NetAnts NetMechanic NetSpider Net Vampire NetZIP
NICErsPRO NPbot Octopus Offline.Explorer Offline Explorer Offline Navigator Openfind
Pagerabber Papa Foto pavuk pcBrowser Program Shareware 1 ProPowerbot/2.14
ProWebWalker ProWebWalker psbot/0.1 QueryN.Metasearch ReGet RepoMonkey RMA
SiteSnagger SlySearch SmartDownload Spankbot spanner Superbot SuperHTTP Surfbot
suzuran Szukacz/1.4 tAkeOut Teleport Teleport Pro Telesoft The.Intraformant TheNomad
TightTwatbot Titan toCrawl/UrlDispatcher toCrawl/UrlDispatcher True_Robot turingos
Turnitinbot/1.5 URLy.Warning VCI VoidEYE WebAuto WebBandit WebCopier WebEMailExtrac.*
WebEnhancer WebFetch WebGo IS Web.Image.Collector Web Image Collector WebLeacher
WebmasterWorldForumbot WebReaper WebSauger Website eXtractor Website.Quester Website
Quester Webster.Pro WebStripper Web Sucker WebWhacker WebZip Wget Widow
[Ww]eb[Bb]andit WWW-Collector-E WWWOFFLE Xaldon WebSpider Xenu's Zeus

8. Bots Blocking Rule
in .htaccess
#block bots
RewriteCond %{HTTP_USER_AGENT} Aport [OR]
RewriteCond %{HTTP_USER_AGENT} Ezooms [OR]
RewriteCond %{HTTP_USER_AGENT} Yahoo [OR]
RewriteCond %{HTTP_USER_AGENT} TwitterFeed [OR]
RewriteCond %{HTTP_USER_AGENT} MJ12bot [OR]
RewriteCond %{HTTP_USER_AGENT} rss [OR]
RewriteCond %{HTTP_USER_AGENT} YandexBot [OR]
RewriteCond %{HTTP_USER_AGENT} bingbot
RewriteRule ^.* - [F,L]

9. DDOS Attack

10. Habr-effect
(Slashdot effect)

12. Bad Code Example

13. ?

14. Should I look for other hosting
provider?

< 1000 visits/day

< 5 req/min, < 1000 nodes

< 30 req/min, < 1000 nodes, 90% bots

15. ?

16. Important Parameters of the Data
Center

Network infrastructure, speed guarantees,

UPS, backup power, diesel generators,

Guarantees replacement time,

The qualification of the technical support.

17. ?

18. Checklist for Choosing Didicated
Server

CPU

Memory

Hard drive

Bandwidth

19. HDD Types

SATA II

Velociraptor

SAS

SCSI

SSD

20. RAID Types

RAID0

RAID1

RAID5

RAID10

21. Architecture of Our HDD Subsystem
RAID 1 RAID 5
300 GB
SAS 1 TB 1 TB
SATA II SATA II
300 GB
1 TB 1 TB
SAS
SATA II SATA II

22. We are using

23. NGINX and Apache interrelation
diagram

25. How “opcode cache” works

26. “OpCode cacher” performance
diagram

27. High-performance MySQL server

29. Any questions?
Corporate website:
http://it-patrol.ru
Drupal Hosting:
http://dh.it-patrol.ru
Contact email:
support@it-patrol.ru