I currently have a website that is creating extreme memory load problems on the dedicated server it is on. The server itself is perfectly capable of supporting the site's traffic, the problems are due to some bug in the php coding of the site which is creating multiple instances of processes that build up and are never terminated. When these processes are killed manually through cpanel, everything resumes back to normal, but it is obviously not the solution as the problem reoccurs very quickly.
Everything was running flawlessly before and even under much heavier traffic. It is some file, configuration change or apache update that must have started this.
I need a programmer that has a solid background in PHP and server administration to take a close look at the code and trace the source of the problem and make the necessary corrections to resolve the issue.
Here are some specifics about the site/problem; you must be familiar with all these topics before considering this project:
- The site is hosted on a dedicated server running Centos 6.3
- The site in is a gaming/arcade site with hundreds of Flash games. There is a custom antileech setup to prevent people from pumping the games. It is this antileech setup that is causing the issues.
- The processes causing the load look like this (process manager shows multiple instances of this):
/usr/local/apache/bin/httpd -k start -DSSL
Again this could be a server config issue, a missing file or some error in a php code.
Please post your offers with relevant information and past experience covering such issues.
This project was awarded to
Having already used a number of freelancers from this website, I can wholeheartedly say that it's the first time I am so much impressed by one. Sergey has been absolutely magnificent, excelling in both professionalism and quality of work. It's really been great working with him. If you're searching for a Sysadmin who is a knowledgeable veteran in his field and who will get the job done, you should definitely give him a chance to shine, instead of risking yourself and your work with others. In more detail, he did not only setup our new server, he also optimized it (with a very apparent speed advantage over our last one), analyzed & fixed all the badly-written sql queries we had, giving us a ton of advice along the way. Ultimately, he has become my go-to guy for anything involving our server. Thank you. [02 April, 2012] Having already used a number of freelancers from this website, I can wholeheartedly say that it\'s the first time I am so much impressed by one. Sergey has been absolutely magnificent, excelling in both professionalism and quality of work. It\'s really been great working with him. If you\'re searching for a Sysadmin who is a knowledgeable veteran in his field and who will get the job done, you should definitely give him a chance to shine, instead of risking yourself and your work with others. In more detail, he did not only setup our new server, he also optimized it (with a very apparent speed advantage over our last one), analyzed & fixed all the badly-written sql queries we had, giving us a ton of advice along the way. Ultimately, he has become my go-to guy for anything involving our server. Thank you.
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Our Certifications are VCP, ITIL V3, RHCE,CISSP,CCNA,MCSA,Linux+ Pro and a CEH "Certified Ethical Hacker". Successful business organizations recognize the importance of technology in running an efficient operation and maintaining their competitive edge. For many, the initial technology investment involves contacting firms such as QITAS to install systems, network hardware and software or to implement an automated system solution. Our Certifications are VCP, ITIL V3, RHCE,CISSP,CCNA,MCSA,Linux+ Pro and a CEH "Certified Ethical Hacker". We work in a high availability server environment with over 30 servers of many flavours. We put high importance on security issues and redundant config urations. With experience spawns over 10 years in multiple countries with a programming background. We handle all servers from Linux to Windows and any cloud system such as AWS/VMWare and others. We are top providers at one of the most prestigious IT portals Experts Exchange online.
Spring, United States
Experienced Linux Systems Administrator administering centos, redhat, scientific linux, ubuntu. Also experienced in Administering aix servers.
London, United Kingdom
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I am a dedicated and hard working person. I am well educated and highly experienced in the field of Information Technology. My work is my passion and I have developed a wide range of IT skills which I apply to the projects that I undertake. When I take on a project, I do my utmost to ensure it is completed to the highest standard, within budget and delivered on time. I won't let you down.
Worked for arvixe and servercentre datacenters. Extensive experience with Perl and shell scripting. Over 8 years of experience managing cpanel, tomcat and jboss servers. Amazon, digitalocean, heroku, and bitnami, cloud management, load balancing, Mysql replication and clustering.
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Skysoftworld is a NCR (INDIA) based Software development & IT Services provider. (Established in 2007) We are ISO 9001:2008 certified for our quality and management processes. More than 500 projects successfully delivered till date (150+ here on freelancer itself). 60+ Team size (Dedicated Teams for design, QA and development, backed by Team leads and project manager) Dedicated customer support department. Technology: .NET Stack : asp.net, Dotnetnuke (evoq), MVC, kendo UI, kentico CMS, Umbarco CMS, Sharepoint PHP Stack : Joomla, Drupal, Codeignitor, Wordpress, MVC Mobile Stack : Android, IOS, Windows Phone eCommerce : Magento, Prestashop, NBStore, VirtueMart, WooCommerce Client Side : Node.js, canvas etc Verticals: Real estate, Finance, eCommerce, Retail, Virtual Currencies (bitcoin etc), Single Sign ons (SSO) etc
> DNS&DHCP: Subdomain, DKIM, SPF, DyDNS, DHCP, Dynamic DNS & DHCP > Web Servers: Apache, Nginx, Jetty, Tomcat > Multimedia: RED5Server, FFMPEG, etc > Mail Servers: Postfix, Sendmail, Exim, Postfix, Zimbra CS (by yahoo) > Saving of network resources consumption: Iptables, Squid, SAMS, advanced traffic shapers/filters > Protected communication channels creation: VPN, PPTP, PPPoE, OpenVPN > Advanced monitoring systems: Nagios, Centreon, Zabbix > Extended system of data-backup/data encryption: Amanda, Bacula > Server panels setup and configuration: cPanel, ISPmanager, Plesk, Webmin/Virtualmin > Database servers management: MySQL, PostgreSQL, MS SQL > Secure servers: SSL certificates installation, security audit > VoIP: Asterisk, Openmeeting, Freeswitch > Server monitoring and pro-active fixing, if down and more...