Postfix Professionals & Consultants

Showing 101 freelancers

Postfix Professionals & Consultants

Showing 101 freelancers

  • Linux System Admin - DevOps - PHP - Drupal 6/7 Expert.

    + Linux : Apache | MySQL | PHP (LAMP) | MySQL Cluster | Rsync | IRC | vtigerCRM | SugarCRM | Squid | PostFix | Subversion | EC2 | S3 | RDS | Route 53 AWS. + Linux: Iptables | Samba | FTP Server | Crontab | Cacti | Citadel | Webcit | Roundcube. (Backup & Recovery Website). + Windows: Server 2003 | 2008 | 2008 R2 | IIS … more

    + Linux : Apache | MySQL | PHP (LAMP) | MySQL Cluster | Rsync | IRC | vtigerCRM | SugarCRM | Squid | PostFix | Subversion | EC2 | S3 | RDS | Route 53 AWS. + Linux: Iptables | Samba | FTP Server | Crontab | Cacti | Citadel | Webcit | Roundcube. (Backup & Recovery Website). + Windows: Server 2003 | 2008 | 2008 R2 | IIS Web service | SQL Server 2005 | GFI Server Monitor | PRTG | Whats Up Gold. + Cisco: C6509 | C3750 | C2960 | C2950 | R3640 | R2921 | R2800 | R2600 | ASA 5520 | + Juniper: J6350 | EX 4200 | SRX 210 | 240 | Vyatta + Drupal / Wordpress / Joomla / Magento CMS Administrator.  less

    apache-administration mysql cisco-ios cisco-routers amazon-ec2 amazon-s3 amazon-web-services juniper-routers centos fedora ubuntu iptables unix-shell tcp-ip bgp firewalls cisco-asa postfix samba mail-server-implementation whm cpanel ftp email-technical-support lamp-administration unix-system-administration drupal linux-system-administration whmcs phpmyadmin plesk cisco-voip amazon-rds 00 more less
    • $15.56 HOURLY RATE
    • 4.5
    • 47 HOURS
    • VIETNAM
    • LAST ACTIVE
    • 5 PORTFOLIO ITEMS
    • 13 TESTS
  • Linux and network administrator, python developer

    Have 8+ years experience in network and servers administraion, integrating and supporting distributed applications and software solutions. Last couple years working as a python developer building distributed services and APIs (mostly web-based). Fast learning and responsible. Willing to help employer to provide the best service.

    python nginx mongodb linux-system-administration apache-administration mysql iptables postfix vmware-esx perl zabbix gearman 00 more less
    • $16.67 HOURLY RATE
    • 5.0
    • 469 HOURS
    • POLAND
    • LAST ACTIVE
    • 6 PORTFOLIO ITEMS
    • 8 TESTS
  • Systems Administrator

    I have been working with Linux and Windows for over 10 years, doing all kinds of desk support , and a few Server Installations including Apache, MySQL, PHP,IPtables and further more Linux services.Simultaneously i have performed tasks for companies … more

    I have been working with Linux and Windows for over 10 years, doing all kinds of desk support , and a few Server Installations including Apache, MySQL, PHP,IPtables and further more Linux services.Simultaneously i have performed tasks for companies and done free lance work,managing different types of opperating systems and programs. As for my actual fixed company related work experience,it has started 3 years ago, since I started working as a Network Administrator for Windows 2003 and 2008, then I became a Linux,Oracle Database and Oracle ERP Administrator.I master OSs applications' administration, as well as the fast learning of installation and configuration of new applications,no matter how complex they can be. I have also obtained some experience in C,C++,Java,PHP,Shell scripting ,Siebel and Project Management.  less

    spanish linux-system-administration virtualization postfix 00 more less
    • $16.67 HOURLY RATE
    • 5.0
    • 51 HOURS
    • EGYPT
    • LAST ACTIVE
    • 5 PORTFOLIO ITEMS
    • 8 TESTS
    ASSOCIATED WITH:
  • 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
    • 572 HOURS
    • EL SALVADOR
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 0 TESTS
    ASSOCIATED WITH:
  • 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
  • Linux Admin / Networking / VoIP / Scripting / Web development

    Non-comprehensive list of GNU/Linux skills: - Debian-based distros - bash scripting - TCP/IP (networking) - netfilter/iptables (firewalling) - OpenVPN (virtual private networks) - OpenSSL (certificate management) - apache/nginx (web services) - cron (scheduling) - dovecot IMAP/POP3 and postfix SMTP (email) - asterisk PBX (voice over … more

    Non-comprehensive list of GNU/Linux skills: - Debian-based distros - bash scripting - TCP/IP (networking) - netfilter/iptables (firewalling) - OpenVPN (virtual private networks) - OpenSSL (certificate management) - apache/nginx (web services) - cron (scheduling) - dovecot IMAP/POP3 and postfix SMTP (email) - asterisk PBX (voice over IP) - git (revision control) - syslog (advanced logging) - nagios, icinga, munin, monit (monitoring) - backuppc (backup) Non-comprehensive list of network management skills: - solid understanding of TCP/IP & Ethernet - monitoring tools - VLAN management - manageable switches in general - IGMP & IGMP snooping - OSPF & BGP routing protocols - GePON OLT & ONU equipment About me: Solid understanding of communication and web technologies is my primary area of interest and expertise. Over the last 7 years I've been a tech support for an ISP, a systems & network administrator and a web developer. As a network administrator for 2 years, I discovered what it means to maintain a large-scale MAN (Metropolitan Area Network), including internet access, setting up and managing IPTV streaming through IGMP and IGMP snooping techniques. I've setup BGP so the provider can have a backup route for his services. I'm falimiar with the nature of the technical issues that can occur and the different ways of handling and preventing them. I'm experienced in ethernet & GePON networking equipment. I've managed network equipment from most major vendors, Cisco, HP, DLink, Dell and Fundry, just to name a few. I've been working with Debian GNU/Linux professionally for 2 years as a systems administrator for a Bulgarian tourist resort and 2 years maintenance the services infrastructure (web, mail, vpn, samba, domain management, monitoring, ticket resolution systems, asterisk voip). I worked at a web development company for a year, doing back-end web development with different and frameworks, such as django, rails, express.js, along with infrastructure administration tasks and support. Languages: html5, bash, python, ruby, javascript Databases: mysql, postgres, mongodb Hobbies & interessts: - x86 assembler - system security forensics - electronics  less

    linux-system-administration ubuntu bash asterisk iptables network-planning network-security network-administration html5 javascript ruby ruby-on-rails tcp-ip git github nagios devops munin redmine ssl vpn openvpn postfix mail-server-implementation openvz haproxy amazon-ec2 virtualization freepbx 00 more less
    • $16.67 HOURLY RATE
    • 5.0
    • 59 HOURS
    • BULGARIA
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 8 TESTS
    ASSOCIATED WITH:
  • 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

    computer-networking dns dhcp squid postfix sendmail mail-server-implementation apache-administration apache-tomcat oracle-database php drupal wordpress ssl centos ubuntu 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
    • $22.22 HOURLY RATE
    • 4.9
    • 156 HOURS
    • INDIA
    • LAST ACTIVE
    • 7 PORTFOLIO ITEMS
    • 10 TESTS
    ASSOCIATED WITH:
  • Mail / System Administrator

    Create private mail services for guaranteed delivery into INBOX for most public mail services. Hi experience of *NIX and Windows OS and services. ОS Linux: Distro: Debian/Ubuntu, RedHat/Centos, Slackware/ArchLinux, Gentoo/CLD Services: webserver(nginx,apache,php-fpm,fastcgi … more

    Create private mail services for guaranteed delivery into INBOX for most public mail services. Hi experience of *NIX and Windows OS and services. ОS Linux: Distro: Debian/Ubuntu, RedHat/Centos, Slackware/ArchLinux, Gentoo/CLD Services: webserver(nginx,apache,php-fpm,fastcgi), webproxy(squid,SAMS,squidguard), mail(postfix, exim, dovecot, cyrus, amavisd, spf, dkim), samba+AD integration, firewall, ldap(mail, samba), VPN (IPsec, l2tp, pptp), pgsql, mysql, nagios, bacula, dhcp, bind) desktop (wine, xorg, hal, synce, office). More than 7 ages exp. ОS *BSD: OpenBSD, FreeBSD Services: web(httpd), proxy(squid, squidguard), mail(postfix, dovecot, amavisd), samba, firewall,routing, VPN (IPsec, pptp), bind, dhcp). ОS Windows: Windows 2000, XP, 2003, 2008 Server (AD, DHCP, GPO, IIS etc)  less

    vpn linux-system-administration postfix email-deliverability-consulting kvm-virtualization ipsec python openbsd c++ network-administration 00 more less
    • $27.78 HOURLY RATE
    • 5.0
    • 187 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 10 TESTS
  • Freelance Developer

    I also have experience managing Linux servers alot of this experience has come from me teaching myself in my spare time how to do the tasks. I have setup minecraft servers, setup virtualization using OpenVz, setup email servers, internet radio … more

    I also have experience managing Linux servers alot of this experience has come from me teaching myself in my spare time how to do the tasks. I have setup minecraft servers, setup virtualization using OpenVz, setup email servers, internet radio streaming servers such as icecast2, asterisk setup, LAMP setup, and many more aspects of administration. Some past experience, I have had is I undertook the Diploma of Interactive Gaming and the Media Design School in Auckland, New Zealand. Programming in c++ and using DirectX9 for the graphics renderering engine. I have web design and programming skills where I have created several websites in the past for clients, and personal websites for myself. I believe I am a quick learner who can adapt to new tasks and problems and provide good quality work to a deadline. In the future I want to run my own software engineering company.  less

    minecraft postfix linux-system-administration c++ python web-design web-content-management website-development wordpress 00 more less
    • $15.00 HOURLY RATE
    • 5.0
    • 21 HOURS
    • NEW ZEALAND
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 4 TESTS
  • Professional Server Help (Linux Administrator)

    Melbourne based System Administrator with expertise in Linux Server optimization, security and service deployment on VPS/Physical, Cloud Platforms(AWS,Rackspace). I believe in getting the job done with the best possible quality. Period. Clear timely communication with the clients … more

    Melbourne based System Administrator with expertise in Linux Server optimization, security and service deployment on VPS/Physical, Cloud Platforms(AWS,Rackspace). I believe in getting the job done with the best possible quality. Period. Clear timely communication with the clients and their team is always my priority. I have been working with all the major providers: Rackspace, Amazon, Softlayer, Godaddy, Hostgator, Bluehost, Linode, DreamHost, Mediatemple, Lunarpages. Expertise in Linux Administration is as follows (but not limted to) Server Distributions: RedHat, Centos, Fedora, Debian, Ubuntu, Gentoo, Suse, Mandriva, Opensuse, Knoppix, Slackware. Web servers: Apache, Lighttpd, Nginx, Tomcat File servers: Proftpd, Pureftpd, Vsftpd, Sftpd, TFTP, NFS, Samba DNS servers: Bind9, MyDNS, NSD Mail servers: Postfix(TLS,SASL), Exim, Sendmail, Qmail, Dovecot, Courier. Logging services: Syslog, Rsyslog, Syslog-ng Proxy servers: Squid(forward and reverse proxy), nginx, pound, lighttpd. Firewalls: Iptable scripts and Advance Policies Firewall with bruteforce detection. Firewall configuration: NAT, IP Masquerade Jabber servers: Openfire, Ejabberd, Djabberd Database servers: MySQL, Postgresql Backup: Bacula, bash scripts. VPN: PPTP Virtualisation: Openvz/Virtuozzo, Xen, Qemu, KVM, VMware Server, Parallels Workstation, Virtualbox headless, HyperVM. Monitoring: Nagios, munin, zabbix, zenoss Automation: Puppet(fan), custom bash scripts. Revision control: Git(fan), Subversion Package management: yum, rpm, dpkg, aptitude, apt-get, emerge Security: Nessus, John The Ripper, Tiger, PGP, GPG, nmap, Openvas, Snort, Ettercap, arpwatch, SSH, SSL, TLS, TCP Wrappers, Ethereal, dsniff, tcpdump, portsentry, rkhunter, chkrootkit, clamav, SPF, Spamassassin, domain keys. Cloud computing: Amazon (EC2, EBS, S3, CloudWatch), Rackspace services. Assessment tools: sar, vmstat, iostat, mpstat, netstat, iptraf, iftop, lsof, ntop, serverstats Misc services: NTP, Cups, DHCP, Dnsmasq  less

    lamp-administration apache-administration linux-system-administration postfix whm iis unix-shell mysql vpn nagios munin ftp cpanel plesk nginx postgresql lighttpd subversion puppet-administration ssh iptables drupal wordpress domain-migration mail-server-implementation openvz virtualization redmine amazon-ec2 amazon-web-services amazon-s3 rackspace-cloudservers virtuoso bash exim firewalls ssl centos ubuntu security email-deliverability-consulting mailenable ffmpeg atlassian-jira python rhel 00 more less
    • $50.00 HOURLY RATE
    • 5.0
    • 1318 HOURS
    • AUSTRALIA
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 1 TEST
    ASSOCIATED WITH:
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