Last seen: Apr 24, 2014 5:39 AM EDT
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Cluster architecture design. Server security and optimization

Username: codetrance

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Location: Zwolle, Netherlands

Member since: February 2006



(108 reviews)

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4 users have recommended this freelancer.

My skills:

My projects:

  • $60 USD
    Profile image for Seller alwaysontask


    24 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.

  • $250 AUD Today

    Having a couple of issues with my server and am going around in circles with my host. There are a couple of pages that no longer work correctly since I contacted the host to fix a problem.These pages should show a sample of a sticker you design and you should be able to change the background colour, see a list of your text in all fonts, etcAs you can see on this page, it is not working original problem has also not been fixed by the host. This is that 2 domains out of 50+ domains stop working. They will show in your browser, just a time out message. You can show a directories list of images, but you can not get any images to display from the list when you click on them. restarting Apache works, but only for a short need a full list of what was done to fix the problems so I can put a claim against my host.I have root access so you can fix it

  • $110 USD 2 days ago

    My joomla website was hacked and he left a mess. Looking for someone to clean up the back end.

  • $110 USD 2 days ago

    we looking for freelancer who have good experience for Linux hosting server , we bought one OVH server , where we need to install WHM and other software and manage it . please bid only if you have experience. i need fast work to be done. thanks!

  • $80 USD 2 days ago

    Our server is currently down on AWS because something is missing in the PHP files. Everything was working great and we chnged a permission on some files and the server went down. We can not get a simple test php file to laod in root directory now so PHP is not working. Apache does seem to be working. Need immediate help. Project is just to get PHP back up on serve and you must be available now to help me.

  • $200 USD 2 days ago

    I have an online web system that is programmed in ASP. It is hosted on a Windows Server 2008 sever remotely. I need to backup the Windows Server 2008, including the ASP programmed web based system installed on the server and then transfer it to another server. Once this has been completed, I will need to be able to log in to the system programmed in ASP to confirm that the transfer has been successful.

  • $25 USD/hr 3 days ago

    We are a litte german-based webhosting-company with own hardware in a data center in Frankfurt and run dedicated servers and virtual servers for our customers. Additionally, we offer server management on monthly flatrate or hourly based.We are currently searching someone, who supports our on hourly base (via ticketsystem when errors occure or for regularly tasks).You should have very good knowledge on linux, apache, mysql etc. and you should be able to work with loadbalancers, replication and high aviability systems.We can´t estimate the amout of hours per month at the moment, but we are seeking for a permanent job-relation.Reliability is very important for us!German knowledge of language advantageous but not essential.

  • $150 USD 6 days ago

    Our current Nagios installation gives fake alerts. It causes a lot of problems for us. We are looking for someone who can fix the configuration so as fake alerts aren&quot;t given out and maintain the setup too.

  • $150 USD 6 days ago

    Our current Nagios installation gives fake alerts. It causes a lot of problems for us. We are looking for someone who can fix the configuration so as fake alerts aren&quot;t given out and maintain the setup too.

  • $110 USD 7 days ago

    Linus Server Maintenance and System Upgrades

  • $50 USD/hr 10 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 11 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 12 days ago

    I need my server patched for the Heartbleed bug

  • $300 AUD 12 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 13 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 13 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 14 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 16 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 25 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 27 days ago

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

  • $30 USD 27 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.

    codetrance does not have any open projects.
    codetrance does not have any work in progress.
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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.