dev.enekoalonso.com » web http://dev.enekoalonso.com having fun with code Wed, 12 Oct 2011 21:40:17 +0000 en hourly 1 Angry Birds as a Web App http://dev.enekoalonso.com/2011/05/12/angry-birds-as-a-web-app/ http://dev.enekoalonso.com/2011/05/12/angry-birds-as-a-web-app/#comments Thu, 12 May 2011 17:40:58 +0000 Eneko Alonso http://dev.enekoalonso.com/?p=693 Really, really cool, Rovio has released Angry Birds (and all the game assets) as a web app, Javascript and Canvas based. I can’t wait to see clones of Angry Birds with custom assets, maps and sounds.

via Angry Birds as a Web App.

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]]> http://dev.enekoalonso.com/2011/05/12/angry-birds-as-a-web-app/feed/ 0 Got NFS working http://dev.enekoalonso.com/2010/02/06/got-nfs-working/ http://dev.enekoalonso.com/2010/02/06/got-nfs-working/#comments Sun, 07 Feb 2010 06:19:27 +0000 Eneko Alonso http://dev.enekoalonso.com/?p=457 Well, last night I started reading about how to share the files folder of a Drupal installation on a site with multiple web servers. Seems like NFS is the right way to go (as long as your traffic doesn’t grow too much). Perfect for Spaniards.es, since I want to move from a 2 dedicated server setup to a more flexible one where I can launch new web servers easily, almost on demand.

  1. # Install NFS
  2. yum -y install rpcbind nfs-utils nfs-utils-lib system-config-nfs rsync
  3.  
  4. # chkconfig nfs on
  5. /sbin/chkconfig nfs on
  6.  
  7. vi /etc/idmapd.conf
  8. # [General]
  9. # Domain = spaniards.es
  10. # [Mapping]
  11. # Nobody-User = nfsnobody
  12. # Nobody-Group = nfsnobody
  13.  
  14. service rpcidmapd restart
  15.  
  16. echo "/files/archivos  /nfs4exports/archivos none bind 0 0" >> /etc/fstab
  17. mount /nfs4exports/archivos
  18.  
  19. echo "/nfs4exports XXX.177.133.25(rw,insecure,no_subtree_check,nohide,fsid=0) XXX.177.136.14(rw,insecure,no_subtree_check,nohide,fsid=0)" > /etc/exports
  20. echo "/nfs4exports/archivos XXX.177.133.25(rw,insecure,no_subtree_check,nohide) XXX.177.136.14(rw,insecure,no_subtree_check,nohide)" >> /etc/exports
  21. su -c "/usr/sbin/exportfs -rva"
  22. /sbin/service nfs restart
  23.  
  24. echo 'portmap:ALL' > /etc/hosts.deny
  25. echo 'lockd:ALL' >> /etc/hosts.deny
  26. echo 'mountd:ALL' >> /etc/hosts.deny
  27. echo 'rquotad:ALL' >> /etc/hosts.deny
  28. echo 'statd:ALL' >> /etc/hosts.deny
  29.  
  30. echo 'portmap:XXX.177.133.25,XXX.177.136.14' > /etc/hosts.allow
  31. echo 'lockd:XXX.177.133.25,XXX.177.136.14' >> /etc/hosts.allow
  32. echo 'mountd:XXX.177.133.25,XXX.177.136.14' >> /etc/hosts.allow
  33. echo 'rquotad:XXX.177.133.25,XXX.177.136.14' >> /etc/hosts.allow
  34. echo 'statd:XXX.177.133.25,XXX.177.136.14' >> /etc/hosts.allow
  35.  
  36. echo 'LOCKD_TCPPORT=48620' >> /etc/sysconfig/nfs
  37. echo 'LOCKD_UDPPORT=48620' >> /etc/sysconfig/nfs
  38. echo 'MOUNTD_PORT=48621' >> /etc/sysconfig/nfs
  39. echo 'STATD_PORT=48622' >> /etc/sysconfig/nfs
  40. echo 'RQUOTAD=no' >> /etc/sysconfig/nfs
  41. echo 'RQUOTAD_PORT=48623' >> /etc/sysconfig/nfs

At the end, setting up NFS is not that complicated, but it was my first time, so it took a while. Actually, I had everything working before I noticed, since, logged in as root, I couldn’t figure out why I wasn’t able to write to the nfs mounted directory, being this mounted as rw. Well, turns out that you shouldn’t do this as root, since root access on nfs, once enabled does not require authentication.

I’m not sure why there is a need to mount a bind directory on the nfs server, but I think it has to do with the NFS4 directory configuration.

I think I got all the information I needed between these two links:
http://fconfig.wordpress.com/2006/08/17/setting-up-a-fedora-nfs-server/
http://fedorasolved.org/Members/renich/howtos/f7/en/nfsv4-fedora/?searchterm=nfs

Next step: set up the round robin load balancer: haproxy or dns?

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]]> http://dev.enekoalonso.com/2010/02/06/got-nfs-working/feed/ 0 CloudServers: Creating a new web server with httpd, php & memcached http://dev.enekoalonso.com/2010/01/31/cloudservers-creating-a-new-web-server-with-httpd-php-memcached/ http://dev.enekoalonso.com/2010/01/31/cloudservers-creating-a-new-web-server-with-httpd-php-memcached/#comments Sun, 31 Jan 2010 17:16:47 +0000 Eneko Alonso http://dev.enekoalonso.com/?p=442 Creating a new web server is piece of cake at Rackspace Cloud. Here is a demo video of how to set up a new instance with your favorite Linux distribution. I have used Fedora 12 for my new spaniards.es servers, and here is the script I’ve used to install everything needed so far:

  1. # Install HTTPD
  2. yum -y install httpd rsync
  3.  
  4. # Install PHP
  5. yum -y install php php-mbstring php-mysql mysql
  6.  
  7. #############################################################
  8. # FIREWALL
  9. # Open http port 80 (and ssh)
  10. iptables -F
  11. iptables -A INPUT -p tcp –dport 22 -j ACCEPT
  12. iptables -P INPUT DROP
  13. iptables -P FORWARD DROP
  14. iptables -P OUTPUT ACCEPT
  15. iptables -A INPUT -i lo -j ACCEPT
  16. iptables -A INPUT -m state –state ESTABLISHED,RELATED -j ACCEPT
  17. iptables -A INPUT -p tcp –dport 80 -j ACCEPT
  18. iptables -L -v
  19. service iptables save
  20.  
  21. # Start HTTPD server
  22. /etc/init.d/httpd start
  23.  
  24. # Install  memcached
  25. yum -y install memcached
  26. memcached -d -u apache
  27. yum -y install php-pecl-memcache
  28.  
  29. # Restart HTTPD server
  30. /etc/init.d/httpd restart

DNS configuration can be done through the admin pages, so there is no need for manual configuration. Copying the data from your old server can be done with rsync and having mysql installed is handy to test db connections from the console.

In less than 10 minutes you can have a new web server up and running :)

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]]> http://dev.enekoalonso.com/2010/01/31/cloudservers-creating-a-new-web-server-with-httpd-php-memcached/feed/ 1 sIFR Lite http://dev.enekoalonso.com/2008/12/20/sifr-lite/ http://dev.enekoalonso.com/2008/12/20/sifr-lite/#comments Sat, 20 Dec 2008 21:12:57 +0000 Eneko Alonso http://dev.enekoalonso.com/?p=173 sIFR is a script that allows using any font on websites by embedding them on a flash object. The first release was back in 2005 and although is not the only solution for using non-standard fonts on the web, is widely used because its server independent and doesn’t require any graphic processing on the server like the DTR techniques do.

Now, sIFR Lite has been released and it looks pretty good.

Seen here.

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