Last seen: Apr 17, 2014 3:48 PM EDT
Hire Me!
Rate: $30.00 USD/hour
Follow Invite to Project


Cluster architecture design. Server security and optimization

Username: codetrance

  • Has made a deposit.
  • Has verified their email address.
  • Has completed their profile.
  • Has verified their secure phone number.
  • Verified
  • Payment is not verified.

Location: Zwolle, Netherlands

Member since: February 2006



(108 reviews)

[see more]

4 users have recommended this freelancer.

My skills:

My projects:

  • $60 USD
    Profile image for Seller alwaysontask


    17 days ago

    Excellent job, I do recommend.

    Project Description:Need to disable a faulty module on a virtual private server and check for a coupe of minor issues to fix.
  • $80 USD
    Profile image for Seller QuickOnDemand


    Mar 18, 2014

    The best freelancer I ever worked with! He simply saved me when I most desperately needed! If you are reading the reviews trying to decide who to hire for your project, THIS IS THE GUY!!!

    Project Description:I need someone to log in my server and configure my Postfix Dovecot with Mysql Mail Server urgent. I can pay immediately. Budget is USD 80.00
  • $100 AUD
    Profile image for Seller nortont


    Feb 21, 2014

    Thanks for the work

    Project Description:I have new VPS with Apache and Wordpress installed in a very raw form Wordpress runs but will not allow me to upload templates in the normal way and wants FTP details. I need the system fine tuned and a FTP server installed...
  • $240 USD
    Profile image for Seller gerardroos


    Feb 13, 2014

    Good job. Will hire again.<br/>

    Project Description:2 CentOS 5 VPS servers, firewall
  • $250 USD
    Profile image for Seller jesperekerling


    Jan 31, 2014

    Just perfect!

    Project Description:Hi, We want to install mysql to a new server with iptables optimization. The server has high traffic. During peak we have 1-2000 requests/s. DB is 5 GB (50% myisam/50% innodb). Our server now has high CPU usage...
  • £50 GBP
    Profile image for Seller sdmeehan


    Jan 24, 2014

    Great work and good professional experience. Would work with again. Thanks.

    Project Description:I&#039;ve recently had a new 1&amp;1 server set up and have a problem with backing up databases. I have a freelancer trying to do a backup of a database who is experiencing issues. Please see below. Freelancer...
  • [Sealed]
    Profile image for Seller reagormedia


    Jan 19, 2014

    Excellent work! He did everything as promised and ahead of schedule.

    Project Description:We need a Linux security expert to lock down a new cpanel server. Please provide a detailed list of services you would perform and and certifications and past projects related to Linux server security...
  • $70 USD
    Profile image for Seller Buzz50


    Dec 19, 2013

    codetrace delivers and delivers well. I highly recommend him to you. He listened to my requirements, explained how he was going to fulfill my wishes and quickly completed the project. My server at Buzz50 is running much faster now, backed up by industry accepted test figures for before and after that I ran myself.

    Project Description:I would like my virtual server opimising for my Joomla PHP MySQL community website, No work needs to be done to the website itself, just to the server which is hosted by and in one of their &#039;Hybrid&#039; virtual servers...
  • $190 USD
    Profile image for Seller dodo1989


    Dec 4, 2013

    This guy did a amazing job!! Get a lot of trouble with my server performance and it works like a charm at this moment Highly recommended!!

    Project Description:I got a problem with the HTTPD process in directadmin my Magento store take a lot of resource and get overloaded the HTTPD proces and my website is getting down. Need a real pro for this is a serious...
  • $30 USD
    Profile image for Seller f3ze


    Nov 17, 2013

    10/10 Very easy to deal with and 100% correct result - thanks!

    Project Description:I have a VPS setup with centos 6 on I&#039;ve tried to install zendGuard but a script which checks for it can&#039;t find it. I think I must have installed it outside the correct website folder or something like that...
    codetrance has not completed any projects.
  • $25 USD/hr In Progress

    Need an affordable expert to enhance current servers performance and work through tasks for me every now and then.Currently the server is set up running on ubuntu 12.04 with zpanel, apache, nginx as reverseproxy, php5, mysql, postfix, clamav, and an openerp server.Looking for one person to work with repeatedly with occuring tasks, hourly based.thanks!

  • $30 USD/hr In Progress

    2 CentOS 5 VPS servers, firewall

  • $100 AUD In Progress

    Hi,I have already installed and tested a &quot;postfix&quot; server on CnetOS.The purpose of this server is to let people send out email without authentication. We limit the IP address of the sender who can use this server. ------------ the above tasks have been done already --------------Requirements for this project:Part One:Install and configure &quot;policyd&quot; to limit the number of emails can be send out per user IP per hour.Need to make sure &quot;policyd&quot; can do this job otherwise please suggest alternative solution. If you know better solution than policyd please suggest.Installation is straight forward. Instruction has been found here to test it before hand over to me.( Must finish in 72 hours after the login is given)Part Two:Currently emails send out of this server go to SPAM folder of gmail (I believe other email providers as well.) I have already setup reverse DNS for the IP.Need to solve this problem.******** IMPORTANT ******You need to let me know in general what you are going to do when you bid in order to prove you know how to do this project. We need someone can solve the problem straight away instead of using this project as study.

  • $30 USD/hr In Progress

    I have ongoing work related to our previous project &quot;Rectification of mail server issue&quot;

  • $40 USD/hr In Progress

    need nginx NINJA ASAPUrgent site down and my tech is missing

  • $15 USD/hr In Progress

    Need someone to install ruby on my server and change put the old backup folder into right positions so my old website will be displayed again.Quick work for somebody who knows what he is doing.IMPORTANT the website is on RUBY so you need to understand RUBY

  • $30 USD/hr In Progress

    I&quot;m looking for someone to tune our Magento / Apache setup for better performance under load.I&quot;ve already performed the basic performance tweaks so I&quot;m looking for someone to audit the current setup, run load tests, identify performance bottlenecks, apply further tweaks, and report back.

  • $20 USD/hr In Progress

    I have a clipshare website and the server is having high load due to the extensive resource consumption of mysql database . I am looking for a clipshare expert who can optimize the database queries so site speed can increase. Let me know.

  • $70 USD In Progress

    I have a membership site built in Wordpress, with Strongbox security. I use CCbill as payment provider.I had it changed from Dreamhosters hosting to Godaddy hosting.Since it was changed I am having issues with the site being really really slow and crashing.I get error messages like this, and then the site crashes:***** Nagios *****Notification Type: PROBLEMService: HTTPHost: tanyatate.comAddress: XXXXState: CRITICALAdditional Info:CRITICAL - Socket timeout after 10 secondsIt&quot;s running out of memory or having a memory leak issue. I understand there has to be a setting or resource or something that&quot;s unnecessarily consuming too much memory or processes getting hung up somewhere. My old server at Dreamhost was only a VPS with 1GB of RAM. The new server is a dedicated box with double the RAM previously had. Also a new sub account has been created in CCbill for subscriptions. Repoint the current memberships to go to the new sub account, ensuring smooth changeover and Strongbox works with the new sub account.

  • $110 USD Today

    Linus Server Maintenance and System Upgrades

  • $50 USD/hr 3 days ago

    Hi,We need an expert to help us with the following:1) Analyse a SynFlood attack for possible sources2) Recommend most pragmatic defence strategiesYou will have to show considerable expertise and have an excellent rating here, since we will most probably have to trust you with access to our operational serversI will only reply to people who can show both expertise and sensitivity in their responseMany thanksChris

  • $100 USD 4 days ago

    I have a CloudLinux VPS (with CPanel). This VPS will primarily be used to host CPanel accounts using WordPress application.I would like someone to optimize and secure the VPS for WordPress. Some sites are loading slow right now.

  • $50 USD 5 days ago

    I need my server patched for the Heartbleed bug

  • $300 AUD 5 days ago

    We require a heartbleed fix for one of our websites. The site currently has a load balancer, 2 x app servers and 1 db server.You must have previous experience to complete this project.You must be available immediately and be able to complete this in 1 day.We will check the vulnerability is fixed using

  • $150 USD 6 days ago

    we have centos based nginx server ,already running but some times fast, sometimes slow,sometimes getting 404 error.we need tunning configuration files, for magentotuning mysql settingsmeans we need to run magento stabil and fast.

  • $250 USD 7 days ago

    Hi , we need sysadmin , for administrate servers with Cpanel and other OS and CP , do changes and other things , we need people with experience for do works and maintenance of this servers , we want people for works in many projects , please only people with experience because we need work over servers in production Thank´s , the best regards

  • $160 USD 7 days ago

    i need to make replication for a mysql db and files located in a folder. when data are saved in vps1 then the same will be saved on other server also. - vps1(master), vps2(slave), vps3(slave)- must be reliable- must be securedonly bid if you&quot;ve already setup a replication

  • $160 AUD 9 days ago

    Magento expert required for perform diagnosis and fixes on a slow running Magento store. The site is running on a VPS not shared hosting and should have plenty of processing power, but server response and page speed are very slow.This job is for very experienced Magento developers only, as it has to be done flawlessly, as it is for a client of my company and I currently am at capacity so need to bring in an outsided developer on this project. It may lead to further work doing a major site redevelopment.The job is to be performed in two parts1. Perform Diagnosis of issues and write a detailed report of the issues, along with remediation recommendations and approximate performance gains to be expected.2. Perform site remediation work.The successful candidate will receive an initial milestone payment to cover the cost of the diagnosis and report, we will then review the report and if we are satisfied with the quality you will receive authorisation to carry out the remediation work and will be paid the balance on completion.

  • $100 USD 18 days ago

    Install and optimize :Nginx Php-Fpm Open LiteSpeed APC memcache MariaDB MySQL + Tunner Percona Server (new) Varnish Cache 3.0 + Optimize WHM for wordpressOptmized default.vcl for Wordpress Install SSL certificate I have 3 sites (platform: Wordpress), one of which has ssl certificate I need all services optimized for wordpress

  • $200 USD 20 days ago

    simply bid then i&quot;ll provide you more information

  • $30 USD 20 days ago

    We are looking for a skilled linux support technician that can help us in removing and secure a linux centos server , now infected with Ebury Rootkit/Backdoor trojan , this server runs plesk 11 as well.

  • $150 USD 21 days ago

    ***This is a repeat/repost of this project as the freelancer I chose initially didn&quot;t do a good job and I paid before I realized he didnt do a good job and the spamming issue on the server has continued...anyone doing this job will wait for seven day after completion to confirm its been well done before release of payment***!!!-------------------------------------------------------------------------------THE PROBLEM AND WHAT NEED TO BE DONE:I have a VPS server and have noticed that and attacker is using my vps to spam.I am noticing a large amount of bounced spam email to my email from my server root.I urgently need someone with Plesk vps server security experience to :(1) Investigate/audit my vps to discover the source of spam attack(2) Disinfect my vps and stop the spam attack from/using my vps(3) Secure/harden my server and also install the Plesk Micro-Updates necessary for my server: need this job done as soon as possible and will provide my vps credentials to the winning bidder.

  • $30 USD 22 days ago

    i need memcached to be integrated to my website (around 10/20 pages), simply bid i&quot;ll provide you more information

  • $110 USD 22 days ago

    I have a dedicate server that running Linux Centos 6.0, Apache 2.2, PHP 5.3, Mysql 5.1, that serving a Yii framework Application.Currently the server is running very slow, take some time too load. and sometime timeout.Mysql, Apache, PHP using default configuration (from installation)The Yii Framework application doesn&quot;t have less than 25 Tables.I looking for someone with experience in Apache, Mysql optimization.

  • $250 USD 27 days ago

    Looking to optimize servers running a Magento store. Optimize website performance during high traffic periods by load balancing servers.

  • $100 USD 27 days ago

    I have a Vps with centos 6 on it. Since 2 days i have really high cpu usage. I get the error too many connections when i try to reach my site.Database have 2.160.000 records.

  • $120 USD 28 days ago

    I need some libraries/framework to be installed on my linux server.Tell me what you propose to install, i need something to manage:- logs- cpu usage & server performance- security- ... (all other libraries you find useful to install)

  • [Sealed] Mar 18, 2014

    We have a dedicated server we&quot;re purchasing to run free courses for the public. We are expecting a total userbase of 30,000 users spread out considerably, as they will be accessing self-paced courses for no credit, hosted through a Moodle installation on dedicated hardware at a robust data centre. I&quot;m looking for maximizing the performance of the hardware and would like someone with experience tuning for Moodle installs of 10,000 plus if possible. Please sell me on your experience.This project is the setup and optimization of the dedicated server&quot;s application stack (httpd, php, mysql, accellerators, and cache)- Setup and optimization of lighttpd and X-Sendfile (we&quot;re using this instead of Apache because Moodle claims it has performance benefits)- Configuration of PHP (latest version) in FastCGI Mode (see docs below for required modules)- Setup and optimization of APC (Alternative PHP Cache)- Setup and optimization of MySQL with PHPmyAdminAnd here are the server hardware specs:- 2X Intel Xeon E6-2620 (2.00GHz, 15M Cache, 7.2GT/s QPI, 6 Cores)- 64GB Ram- 2x240GB SSD Enterprise on RAID 1- CentOS 6x64 (optimizing this would be great, also)The hardware should be acquired in the next week or so and setup in the datacentre.If you have any questions, please contact me.

  • $250 AUD Mar 17, 2014

    We currently have a large enterprise level drupal setup but are experiencing a ridiculously high load on our server, We need someone with the expertise to help us get our site working efficiently and solve the huge load issues we are having

    codetrance does not have any open projects.
    codetrance does not have any work in progress.
[see more]


[see more]



Project manager

Sep 2001 - Apr 2012 (10 years)

several hosting companies

Worked on cluster using Heartbeat for the job. Well versed with cPanel, Directadmin, Plesk, Webmin and servers with no control panel on board.



Rijksuniversiteit Groningen





Website analyses eg layout, readabilty, functionality, etc....


Security related issues

I've done research about security related issues for company internal use only. They're not available for publications as the company I've worked for forbid me to publish anything that they own, including intellectual properties that belong to the company.