Postfix Professionals & Consultants

Showing 27 freelancers

Postfix Professionals & Consultants

Showing 27 freelancers

  • Linux and Windows System Administrator

    Having 5+ years experience in System Administration, Database Administration & Network Administration. Operating system: Ubuntu, Debian, CentOS ,Red Hat, Windows Server (2003,2008,2012), XP, Vista, Win7, OSX Server: AWS, EC2, S3, EBS, Digital Ocean, Rackspace, Hostgator, Godaddy Active Directory, Samba4 … more

    Having 5+ years experience in System Administration, Database Administration & Network Administration. Operating system: Ubuntu, Debian, CentOS ,Red Hat, Windows Server (2003,2008,2012), XP, Vista, Win7, OSX Server: AWS, EC2, S3, EBS, Digital Ocean, Rackspace, Hostgator, Godaddy Active Directory, Samba4, VMware Vsphere, Xen Server, Apache/Tomcat, Nginx, Samba File Server, Free Radius, Openfiler, LTSP Server,ISPconfig, Zpanel, Cpanel, Plesk, Linux/Windows Terminal Server, DNS, Bind, MS Excange 2013, Zarafa, Resara, Postfix, Dovecot, Cloud Computing, High Availability Security: IPsec VPN, PPTP,SSH, SSL/TLS Untangle, ISA, Zentyal Hardware: Laptop, PC, Router, Switch, Printer, HP server, NAS, SAN Website Application: Wordpress, Magento Ecommerce, Woocommerce Programming Language: PHP, HTML5, CSS3  less

    interspire linux-system-administration amazon-web-services lamp-administration cpanel postfix iis ubuntu windows-administration network-administration wordpress joomla adobe-photoshop 00 more less
    • $11.11 HOURLY RATE
    • 4.8
    • 46 HOURS
    • INDIA
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 2 TESTS
    ASSOCIATED WITH:
  • Systems administrator & Senior web developer

    I am a young entrepreneur and I always seek to learn more and improve my existing skills, for myself and for achieving employer's goals. Therefor, my objective is to give my utmost best to fulfill my tasks with satisfactory … more

    I am a young entrepreneur and I always seek to learn more and improve my existing skills, for myself and for achieving employer's goals. Therefor, my objective is to give my utmost best to fulfill my tasks with satisfactory results! I can: - Develop custom, from the ground up, web apps. - Consult and implement, optimizations for servers and web apps. - Deploy Linux servers (LAMP, DNS, Mail, Anti spam/Antivirus (Mail gateway), Firewalls) - Develop bash scripts for tasks automation - Check and harden security for Linux based servers and services - Check and harden websites security and improve their performance - install, configure or troubleshoot VPS services - help you choose the appropriate VPS service or web hosting company Experience with: - PHP Frameworks: Laravel, CI and Symfony2 - Operating Systems: Linux (Debian, Ubuntu, Redhat, CentOS, Fedora, Slackware) and FreeBSD - Virtualization Software: VMware Server, VMware ESXi, VirtualBox - Web: Apache, Nginx - Mailing and spam/virus filtering: Postfix, Courier, Dovecot, Amavis, Spamassasin, ClamAV, MailScanner (+ Baruwa), SquirrelMail, Atmail, RoundCube, iRedMail - FTP: ProFTPD, Pure-FTPd - Databases: MySQL - DNS: Bind9, MyDNS-NG - Server monitoring: Munin, Nagios - Control panels: ISPConfig, Webmin, cPanel&WHM, Plesk Web development skills: - Languages: Bash, PHP, Python, MySQL, JavaScript, jQuery, AJAX, CSS - High experience with the following APIs: Vimeo, Dailymotion, YouTube, Metacafe's rss feed and some others I have previously worked with Ruby on Rails framework; I have built a hardware device, from a Raspberry Pi, a QR Code scanner, LCD Screen and a thermal printer, with Python code as a processor for the input (QR codes), that serves as an affiliates reward machine, in bars and restaurants. Experience with Media Temple's services, since I host my own data there.  less

    php codeigniter mysql jquery ajax css postfix dns linux-system-administration lamp-administration phpmyadmin youtube-api memcached nagios vmware-administration python api-development rest 00 more less
    • $40.00 HOURLY RATE
    • 5.0
    • 0 HOURS
    • SPAIN
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 3 TESTS
  • Extensive Linux Administrator

    I have the ability to work as a Linux Server Administrator & having a relatively previous experience on: 1. Linux Server Administration, Management, Maintenance . 2. Building Web servers from scratch 3- Web Hosting Support, C-Panel, WHM, WHMCS, Websites migration & Installing php … more

    I have the ability to work as a Linux Server Administrator & having a relatively previous experience on: 1. Linux Server Administration, Management, Maintenance . 2. Building Web servers from scratch 3- Web Hosting Support, C-Panel, WHM, WHMCS, Websites migration & Installing php scripts 4. Servers like Apache, DNS, DHCP, FTP(Pure,Pro,Vsftpd), SSH, LAMP, SSL, Asterisk, VoIP etc 5. integrating vtiger CRM with asterisk for call centers 6. Operating systems like Centos, Red-hat, Ubuntu, Fedora, VPS Cloud, VPS nodes. 7. I will provide Online support to my valued Customers, clientele & My honorable Employers.  less

    linux-system-administration lamp-administration cpanel whmcs apache-administration freepbx asterisk nginx trixbox crm technical-support web-content-management ftp mysql sendmail postfix openvpn openvz amazon-ec2 phpmyadmin 00 more less
    • $16.67 HOURLY RATE
    • 4.9
    • 324 HOURS
    • EGYPT
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 3 TESTS
    ASSOCIATED WITH:
  • AWS Architect/Engineer/Devops

    Over the last 9 years, I have been working as technical support engineer/team leader/infrastructure architect for several large companies (hosting companies with more than 1000 of dedicated and several dozens of VPS servers, ecommerce application companies, small and … more

    Over the last 9 years, I have been working as technical support engineer/team leader/infrastructure architect for several large companies (hosting companies with more than 1000 of dedicated and several dozens of VPS servers, ecommerce application companies, small and large companies with different cloud setups from several to several hundreds of instances) My competency lies in planning, development, deployment and setup of new production environments, troubleshooting/support/improvement of existing production systems based on Linux/Unix. Have a lot of experience in automation/monitoring/backup of different distributed environments with LAMP stack and other applications, different clustering, scalability and high-availability techniques.  less

    linux-system-administration amazon-ec2 clustering bash apache-tomcat ftp dns centos ubuntu subversion atlassian-jira mysql nagios lamp-administration memcached git rightscale amazon-web-services unix-shell redis squid haproxy mail-server-implementation postfix qmail apache-administration project-management github version-control plesk load-testing devops 00 more less
    • $33.33 HOURLY RATE
    • 5.0
    • 1143 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 11 TESTS
  • Linux Admin / Freelaner SystemAdmin /AWS Ec2/ Nginx /WordPress/Magento

    I have been Server Admin and Web Developer for over 10 years, I worked with many top-rated websites all over the world. With such experience, I have expert at LEMP and LAMP system, very good at speeding up servers and … more

    I have been Server Admin and Web Developer for over 10 years, I worked with many top-rated websites all over the world. With such experience, I have expert at LEMP and LAMP system, very good at speeding up servers and sites. I am I am also working at oDesk and Freelancer. If you need references, please don't hesitate to contact me. If you need to verify, please don't hesitate to contact me. I am very experienced with * Linux maintaince/troubleshooting (RHEL, Centos, Debian, Ubuntu, FreeBSD, gentoo, Mac OS X Server), * Virtualization: (Vmware Esxi 5.x, Openvz, Virtuozzo, Xen, KVM, vserver), * Cloud hosting (Amazon EC2, AWS, S3, RDS, simple Cache), * Networking (dhcp, DNS:powerdns/bind/named, vpn: openvpn/pptp, firewalls: iptables/ipfw, qos, proxies, tcpdump), * Web servers (apache, nginx, lighttpd, tomcat, ssl installation and troubleshooting), * Caching ( apc/xcache/memcached/varnish/nginx) * Mail servers (exim, postfix, qmail, antispam/ antivirus: clamav/spamassassin/amavis, courier, dovecot), * Bulk marketing (Dkim, spf, high speed/inboxing, interspire), * Automation (puppet, perl/shell/awk scripting), * Monitoring (nagios, zabbix, munin), * Hosting Ccontrol Panels (Cpanel/WHM, Plesk, Directadmin, ISPconfig..). * Mobile Application (Android / iOS / Windows Phone) I am also working at Elance and Freelancer. If you need refer, please don't hesitate to contact me. Thanks! Some of my projects: I. AWS EC2 & S3: 1. Project Name: Setup Amazon AWS (EC2 and S3) and Optimize Magento Speed 2. Project Name: Amazon bucket setup II. RackSpace Projects: 1. Project Name: Rackspace Server Admin - Need a few things done 2. Project Name: server config and template install w/ visa/paypal III. MySQL/Apache/.htaces Optimization: 1. Project Name: Apache / htaccess expert 2. Project Name: Sql optimization 3.Project Name: Mysql server admin expert to tweak, optimize, fix DB  less

    linux-system-administration database-administration amazon-ec2 rackspace-cloudservers nginx varnish-cache memcached apache-administration mail-server-implementation network-administration openvpn subversion iptables whm cpanel plesk postfix exim ubuntu centos fedora squid bash security dhcp mysql virtualization amazon-web-services amazon-s3 unix-shell wordpress magento joomla 00 more less
    • $27.78 HOURLY RATE
    • 4.7
    • 902 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 4 PORTFOLIO ITEMS
    • 5 TESTS
  • System Administrator / Web Developer

    Over the last 5 years, I have developed a wide range of websites using HMTL, PHP and MySQL including sites for startup companies and small businesses. Also, I've provide solutions for email marketing, web hosting, email servers, everything to … more

    Over the last 5 years, I have developed a wide range of websites using HMTL, PHP and MySQL including sites for startup companies and small businesses. Also, I've provide solutions for email marketing, web hosting, email servers, everything to ensure security, stability and delivery. Experience in: - DKIM - SPF - rDNS - BIND - Postfix - PowerMTA - Amazon SES - Nginx - Zimbra And many more... I also have some experience in the following areas: SQL, Ajax, Ruby, Java.  less

    email-marketing html interspire joomla lamp-administration linux-system-administration web-design facebook-api social-media-marketing windows-xp-administration centos adobe-dreamweaver adobe-photoshop email-deliverability-consulting mail-server-implementation postfix iptables qmail google-apps google-analytics google-adsense libreoffice amazon-web-services css3 dns html5 00 more less
    • $27.78 HOURLY RATE
    • 4.9
    • 432 HOURS
    • EL SALVADOR
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 1 TEST
    ASSOCIATED WITH:
  • Senior System Administrator, Security officer, Migration engineer, SSD

    SUMMARY Specialties: Information Technology / Internet / IT Division / Computer security/ Internet Services / System Administration/ Webmaster Support / Web Analysis/ SEO / SEM / Internet Marketing Web hosting services (SSD hosting solutions) EXPERIENCE: d(-_-)b Linux/Windows system administrator, Operations team EuroVPS/WebDomSolutions January … more

    SUMMARY Specialties: Information Technology / Internet / IT Division / Computer security/ Internet Services / System Administration/ Webmaster Support / Web Analysis/ SEO / SEM / Internet Marketing Web hosting services (SSD hosting solutions) EXPERIENCE: d(-_-)b Linux/Windows system administrator, Operations team EuroVPS/WebDomSolutions January 2012 - May 2013 Greece, Athens Responsibilities: - Tickets; - System administration and monitoring. Theoretical and practical skills: - Operating Systems: RedHat/CentOS/Fedora, Debian/Ubuntu, FreeBSD, Windows Server 2003/2008; - Virtualization: Virtuozzo, OpenVZ, VMware, Onapp Xen, Apache CloudStack; - Setup/configuration: nagios, kayako, racktables, confluence, observium, nginx, php-fpm, liteSpeed, Apache CloudStack, Hostbill, WHMCS, redmine; - Control panels: Plesk, WHM Cpanel. - Database Administration: SQL Server, MySQL, MariaDB ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ <( -'.'- )> freelancer SEO freelance October 2010 - March 2012 (1 years 6 months) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ o(^_^)o System Administrator / Techsupport Webintellects/Webhostgian/Jumpline/Webdomsolutions November 2010 - March 2012 (1 year 5 months) US, Ohio Responsibilities: - Live Chat support, Tickets; - System/Server/Control Panel administration; - Nagios monitoring; - Internet research and work with technical documentation. Operating Systems: * RedHat/CentOS,Fedora * Windows server 2003/2008 * VPS setup and configuration (Parallels Virtuozzo Containers); Advanced theoretical and practical skills in such areas: - Operating Systems: RedHat/CentOS/Fedora, Windows server 2003/2008; - Virtualization: VPS setup and configuration (Parallels Virtuozzo); - Security: Advanced knowledge of Linux security, Firewalls ( IPtables, CSF, APF, BFD, Fail2Ban), Encryption ( SSL), SSH, Host Security Auditing; - Software: Apache servers (versions 1.3.x/2.2), DNS (BIND 9), QMail, Sendmail, exim, LAMP, Plesk/Exim/Cpanel (installing/upgrading/maintaining), Drupal, Wordpress, Joomla, OsCommerce applications, Yum/RPM usage; - Database Administration: SQL Server 2003/2008, MySQL, MS access. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ b(^_^)d Internet Marketing Specialist || Web Analyst DCoM Soft, Inc. December 2009 – August 2010 (9 months) Responsibilities: - Internet Marketing strategy and tactics - Information architecture and Web site content planning - Research of partners - Internet Market Research - Research Usability Design - Online promotion of company's web-based products Skills: - Search Engine Optimisation (SEO) - Paid online Marketing / Pay per Click Management (PPC) - SEO Copywriting/Editing - Social Media Optimization and Marketing (SMO/SMM) - Experience running USA-targeted social Marketing - Writing press releases - Social networking (Twitter, Facebook, Google follow etc) - Google Products, AdWords/AdSense, Google Analytics, Webmaster tools, Google Merchant, etc. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ \(^_^)/ Customer Relations Representative || Advanced Technical Agent Ecommerce, Inc. May 2007 – October 2009 (2 years 6 months) Responsibilities: - Sales, billing and technical support in solving problems reported by clients; - Chat, helpdesk system, correspondence; - View, Adaptation, "repair" clients' sites; - Basic server/service diagnostic and reports to sysadmin department; - Internet research and work with technical documentation; - Work in team. Basic theoretical and practical skills in such areas: - Linux / Unix OS, Windows server 2000/2003, Windows XP/98; - Servers: Apache, bind, sendmail, ProFTP, MySQL, SQUID / SOCKS, MSSQL, Samba; - Easy coding: PHP, PERL / CGI, HTML, JavaScript, CF, ASP,. NET, C + +; - Widely used protocols (HTTP, HTTPS, SMTP, POP, IMAP, FTP (s), TCP / UDP, etc); - HSPHERE control panel (versions 2.3 and 3).  less

    wordpress plesk cpanel joomla nginx php centos nagios mysql network-administration security atlassian-confluence virtuoso openvz vmware-administration fedora ubuntu bash seo sem ftp exim qmail postfix ssl linux-system-administration lamp-administration database-administration windows-administration project-management virtual-assistant tcp-ip internet-marketing network-security google-analytics redhat-administration css unix-system-administration unix-shell virus-removal apache-administration phpmyadmin red5 00 more less
    • $28.88 HOURLY RATE
    • 5.0
    • 764 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 16 PORTFOLIO ITEMS
    • 20 TESTS
  • Senior IT Consultant

    - Expert in information security management systems: Implementation of an information-security management system according to Norm UNE ISOIEC 27001, definition of security objectives, indicators, political security, code of best practice, risk management, treatment plan, control access definition, communications and operations, legal … more

    - Expert in information security management systems: Implementation of an information-security management system according to Norm UNE ISOIEC 27001, definition of security objectives, indicators, political security, code of best practice, risk management, treatment plan, control access definition, communications and operations, legal compliance, management policies incidents of security, CPD preparation, elaboration of contingency plans, business continuity plans, plans elaboration testing of the continuity plan, design of the applicability statement, product realization, actions preventive corrective action, internal audits, training delivery. - Expert in management of the information technology services systems: Introduction of a management system of information technologies services according to standard ISO 20000, elaboration of service processes delivery (capacity, continuity and availability, service levels, reports of service, security, TI budget), control process (configuration, change), delivery processes, solving incidents (problems) processes, business relationships process (suppliers) relations, internal audits, training. -Software process improvement: Implementation of ISO 15504/12207 (SPICE), internal audits, training. -Technological expert: design and implementation of networks architecture, information systems, backup policies, business continuity plans, servers administration (Linux, Unix, Windows, Mac Os), databases (Oracle, MySQL, Posgree), SharePoint, web servers (Apache, IIS), servers (Tomcat, JBoss, WebSphere) applications, ethical hacking (nmap, telnet, Shell script, ssh), vulnerabilities analysis and treatment (Nikto, Nessus, Acunetix, Grendel Scan).  less

    security systems-development ecommerce-consulting e-learning itil supervisory-skills iso-9001 iphone-app-development operating-systems-development linux-system-administration mac-os-app-development information-architecture process-architect moodle survey-design risk-management microsoft-excel informix tcp-ip vulnerability-assessment firewalls dns snmp solaris-administration oracle-database apache-administration apache-tomcat jboss java .net-framework postfix postgresql mysql unix-shell ms-dos-administration mantis eclipse xml html php javascript virus-removal 00 more less
    • $33.33 HOURLY RATE
    • 5.0
    • 224 HOURS
    • SPAIN
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 3 TESTS
  • Network & Security Engineer,programmer

    Servers setup, network setup, performance optimization, troubleshooting, maintenance, automation, documentation. Any kind of hardware and software for Unix-like operating systems. Web, DB, Mail, DNS, Firewall, etc... I would like to offer you my deep knowledge of servers hardware and software … more

    Servers setup, network setup, performance optimization, troubleshooting, maintenance, automation, documentation. Any kind of hardware and software for Unix-like operating systems. Web, DB, Mail, DNS, Firewall, etc... I would like to offer you my deep knowledge of servers hardware and software, which allows me to fine-tune servers according to their roles, and my ability to anticipate and solve problems in shortest time possible. windows or Linux no problem... Over the last 5 years I have developed a lot of desktop and serverside applications using C, C++, Java, SQL, PL/SQL, MYSQL languages for small business in Morocco and france  less

    c c++ java php assembly-language html css linux-system-administration firewalls cisco-asa cisco-routers cisco-ios apache-administration mysql oracle-database vmware-administration penetration-testing data-backup load-balancing network-security dns ftp postfix dhcp mail-server-implementation whm whmcs cpanel tcp-ip security lamp-administration 00 more less
    • $22.22 HOURLY RATE
    • 5.0
    • 0 HOURS
    • MOROCCO
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 4 TESTS
  • The Linux Professional

    Considered the founder of the r3infotech,R3INFOTECH is a leading provider of Computer Hardware and software applications’ design, development, testing and deployment. R3-Infotech was formed with the objective to develop great products and back them with world-class support in Open … more

    Considered the founder of the r3infotech,R3INFOTECH is a leading provider of Computer Hardware and software applications’ design, development, testing and deployment. R3-Infotech was formed with the objective to develop great products and back them with world-class support in Open Source. Formed in 2012, we set a goal to develop products and services in Custom Software Development, Application Development, Web Application Development, Software Outsourcing, Ecommerce web site design, Web Marketing, Website Design, Software Maintenance, Hardware installation and maintenance, data recovery and Server configurations. Our goal is to deliver premium quality Software and Hardware services while giving unmatched value to enterprises worldwide at an affordable cost.  less

    data-recovery computer-networking dns dhcp squid postfix sendmail mail-server-implementation apache-administration apache-tomcat oracle-database php drupal wordpress ssl centos ubuntu customer-support online-help jboss openvpn vmware-administration network-security ftp cpanel samba ssh amazon-web-services whmcs phpmyadmin amazon-ec2 linux-system-administration 00 more less
    • $20.00 HOURLY RATE
    • 4.9
    • 153 HOURS
    • INDIA
    • LAST ACTIVE
    • 7 PORTFOLIO ITEMS
    • 10 TESTS
    ASSOCIATED WITH:
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