Postfix Professionals & Consultants

Showing 173 freelancers

Postfix Professionals & Consultants

Showing 173 freelancers

  • 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:
  • System arhitect, IT project engineer, consultant

    15+ year IT experience. 10+ certificates. Linux, Unix, Windows Server, Servers, Storages, Networking, Hardware, Software, Virtual environments and solutions. If you want the job done fast and properly, I'm your guy. My LinkedIn page - http://lv.linkedin.com/pub … more

    15+ year IT experience. 10+ certificates. Linux, Unix, Windows Server, Servers, Storages, Networking, Hardware, Software, Virtual environments and solutions. If you want the job done fast and properly, I'm your guy. My LinkedIn page - http://lv.linkedin.com/pub/kaspars-vilde/20/126/131  less

    bacula sendmail zabbix vmware-esx apache-administration mysql centos ibm-pseries ibm-storage ibm-xseries microsoft-exchange-server microsoft-hyper-v sound-editing video-editing bash aix cisco-routers snmp mail-server-implementation linux-system-administration domain-migration iis windows-administration windows-xp-administration postfix ibm-tivoli citrix-xenserver kvm-virtualization redhat-administration windows-7-administration 00 more less
    • $33.33 HOURLY RATE
    • 5.0
    • 113 HOURS
    • LATVIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 5 TESTS
  • Junior Freelance Unix/Linux administrator

    Over the last 5 years, I have developed a wide range of skills on Unix/Linux systems. I have worked for companies and associations in France, and now I aim to earn further international experience. I also have experience in the following areas: Unix/Linux, LAMP, Postfix, Dovecot, Clamav…

    linux-system-administration unix-system-administration ubuntu postfix mail-server-implementation windows-xp-administration windows-nt-administration unix-shell dns tcp-ip dhcp ssh openvpn vpn bash squid lamp-administration php phpmyadmin html apache-administration phpbb iptables samba firewalls nagios solaris-administration 00 more less
    • $22.22 HOURLY RATE
    • 5.0
    • 0 HOURS
    • FRANCE
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 6 TESTS
  • Hosting Industry Sr Linux Admin w/ RHCE, RHCVA, MySQL DBA, developer

    For more than ten years I have worked extensively in the software development and hosting industries. I am an expert Linux and Unix system engineer, and can deploy and configure any software stack that is based on Linux for optimal … more

    For more than ten years I have worked extensively in the software development and hosting industries. I am an expert Linux and Unix system engineer, and can deploy and configure any software stack that is based on Linux for optimal content delivery. I excel at MySQL database design, optimization, and administration. I am a seasoned software developer and have extensive experience with many languages including Java, Python, PHP and Ruby. I also have significant experience with customizing, deploying, and adminstering open source web applications, application frameworks, and application servers. I have worked locally, overseas, and with colleagues and clients overseas via the internet. If you look at my work history here, you will note that i 'disappeared' in February 2011. Indeed I did disappear, I was in a very bad car accident in Bangkok, Thailand, where I was living at the time, and was nto able to get out of bed or use a phone or computer for roughly a month. I now reside in Austin, TX again full-time I do not disappear typically, my present and previous employers can confirm that if you are hesitant based on feedback from 2011.  less

    gtk-programming python unix-shell mysql php html ajax java ruby cpanel jboss lamp-administration perl resin plesk c# .net-framework css qmail drupal wordpress joomla spamassassin clamav apache-tomcat nginx linux-system-administration centos ubuntu squid asterisk sip vmware-administration virtualization postfix sendmail mail-server-implementation oscommerce solaris-administration freebsd magento zabbix nagios 00 more less
    • $36.67 HOURLY RATE
    • 4.5
    • 22 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 7 TESTS
  • Linux System Administrator

    10 years of Linux system administration. Distro: RHEL, CentOS, Debian, Ubuntu, XenServer, Solaris Skills: AWS, Xen, Proxmox, XenServer, BIND, Nginx, FastCGI, Apache, Lighttpd, Varnish, Squid Proxy, MySQL, Kannel, Zimbra, Postfix, Qmail, Dovecot, DRBD, Linux-HA Hearbeat, Monit, Snort, BASE, Tripwire, Samba, NFS, MailScanner, Squirrelmail, Joomla, BASH, CSS, PHP, HTML, PERL

    lighttpd linux-system-administration nginx mysql dns squid joomla samba postfix apache-administration load-balancing solaris-administration varnish-cache 00 more less
    • $8.89 HOURLY RATE
    • 4.7
    • 26 HOURS
    • PHILIPPINES
    • LAST ACTIVE
    • 7 PORTFOLIO ITEMS
    • 7 TESTS
    ASSOCIATED WITH:
  • Network, Linux and Security Admin

    Experienced Linux admin in Philadelphia and available to travel to NYC. Security specialist: post-intrusion, malware recovery and PCI compliance. Scripting and web server administration background. Current certifications: Network+, Security+ and Linux+, LPIC1, Novell CLA

    linux-system-administration security centos pci-compliance vulnerability-assessment virus-removal postfix mysql php html apache-administration drupal 00 more less
    • $55.00 HOURLY RATE
    • 4.8
    • 126 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 5 TESTS
  • Official Amazon AWS Partner. Senior Cloud and Linux Expert

    I am an expert with more then 13 years of experience with systems, storage and networking. In last 5 years i`ve mostly have been working on virtualization and cloud solutions such as Amazon AWS and i`m an Official … more

    I am an expert with more then 13 years of experience with systems, storage and networking. In last 5 years i`ve mostly have been working on virtualization and cloud solutions such as Amazon AWS and i`m an Official Amazon AWS Consulting Partner. I`m not running part time gigs here - systems architecture and support is my prime and only business. I can help you with architecture, set up and later maintanence and support for your infrastructure in AWS, GoGrid, Softlayer or other IaaS providers.  less

    linux-system-administration amazon-ec2 lamp-administration amazon-rds amazon-s3 unix-system-administration nagios puppet-administration postfix virtualization 00 more less
    • $50.00 HOURLY RATE
    • 5.0
    • 291 HOURS
    • ISRAEL
    • LAST ACTIVE
    • 4 PORTFOLIO ITEMS
    • 4 TESTS
    ASSOCIATED WITH:
  • Linux Admin

    I'm a Linux admin with over 19 years of experience in shared, dedicated and cloud server administration and control panel (mainly cPanel 9+ years) installation and maintenance. I'm also well diverse in development of small to large Corporate … more

    I'm a Linux admin with over 19 years of experience in shared, dedicated and cloud server administration and control panel (mainly cPanel 9+ years) installation and maintenance. I'm also well diverse in development of small to large Corporate Web sites, Intranets with a wide range of design, implementation, and maintenance online skills. Server Administration includes servers from RackSpace, HP, and Amazon AWS. Control Panels includes, but not limited to cPanel, Enkompass, VirtualMin, WebMin, Plesk.  less

    centos fedora cpanel linux-system-administration windows-administration technical-support tcp-ip web-content-management web-design apache-administration mysql dns postfix postgresql 00 more less
    • $11.11 HOURLY RATE
    • 5.0
    • 117 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 2 TESTS
  • PHP/Python/PostgreSQL/MySQL/jQuery Developer

    Hello, thanks for your interest. I'd love to work on your project, however I'd like to set a few conditions if you hire me. If there is more than 1 dev on the team I insist on peer … more

    Hello, thanks for your interest. I'd love to work on your project, however I'd like to set a few conditions if you hire me. If there is more than 1 dev on the team I insist on peer review and a version control system - I prefer git & github however I'm not opposed to bitbucket and gitlab. Even if I'm the only dev, we should probably use a version control system. I'm also a firm believer in writing tests so changes in one part of the code will not break other parts, it's saved my bacon several times. Testing is one reason why I love working with Flask, and angular.js looks very promising. I would love the opportunity to work on a project that uses angular.js. Even if you don't hire me please implement peer review. That way when you hire me in the future your team is already set up with good habits. Here are a few good articles on the importance of peer review. http://www.techrepublic.com/article/developers-guide-to-peer-reviews/ http://www.ibm.com/developerworks/rational/library/11-proven-practices-for-peer-review/ Now that I'm done with the peer review PSA (Public service announcement.) Allow me to brag about myself. Over the last 11 years I have taught myself how to program in PHP and Python. I entered my first Basic program into a computer when I was in 3rd grade. I love using jQuery to make a site pop. I run my own .com from home with a Linux server on site. This has given me much insight into how servers are maintained, and backed up. I have set up and maintained the following servers Postfix(email), Apache(http), Nginx(http), Open-ssh(ssh) and used Supervisor and Gunicorn to deploy python web apps. I'm also an avid listener to several podcasts, such as Security Now, Linux Action Show, Techsnap and Coder Radio just to name a few of my favorites. Due to the nature of the NDA (Non-disclosure agreement) I can not list what sites/companies I've worked for, I will however tell you what we've used, and a vague description of the work we've done. On a couple of different projects we've used basic google maps, twitter, and facebook api. Some other common js/css libraries are moment.js, bootstrap, and chosen jquery plugin. Most recently I've been doing backend work. This include python, Flask, Flask's restful api to build the backend for an iphone/android app as well as a web front end to administer the data. The iphone/android dev team created the app with Sencha which I deployed using an nginx server. I also helped develop booking software. This includes reports, calendar, artist/user profiles, timezone management, traveling, accommodations, fees, commissions, venues, repertoire and currency conversion. To date, this has been the most challenging and rewarding project for me. The team I work with are extremely talented. We used Python, Flask, Mako, MongoDB, jQuery, Backbone.js, Underscore.js and Java. With another project we parsed PDFs about [undisclosed] and put the information into a database that could then be searched through based on the information mentioned in the PDFs as well as attaching an expiration date to the information parsed. Other accomplishments include a picture labeling program for HUD home inspections that would insert images into a .doc file when needed. It used a lot of jQuery/ajax calls to assign a case number, address, city, state, zip, and classification with lots of auto-complete. The database was MySQL, and I used headless instance of OpenOffice/LebraOffice with a the pyuno bridge to generate the .doc files. I hosted/managed this site for several years, and developed it as new features were needed. I parsed PDF files to get case information, as well as cut out specific pages that needed to be printed, and sorted them out for specific agents. For another project we used a combination of MongoDB, SOLR, MySQL and CodeIgniter. At the time I left we were in a transitional stage converting the site from an affiliate e-commerce/auction model to an advertising model. This project started out using MongoDB and eventually migrated to MySQL. In my spare time I'm developing a Family Media Player https://github.com/the7erm/fmp-pg It uses pygtk to render it's gui, postgresql for it's database, and gstreamer to play the audio/video. I've been focusing my development efforts on creating a web frontend that utilizes Flask so it can all be controlled via a phone or tablet.  less

    ubuntu python php mysql jquery javascript html css ssh git mongodb apache-administration codeigniter postfix 00 more less
    • $22.22 HOURLY RATE
    • 4.9
    • 2462 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 3 TESTS
  • Computer Systems Engineer - Linux and Networking Expert

    Over the last 6 years I've worked as the Operations Manager for a telecommunications company in my country, planning, designing and managing all the aspects of the company network that is based in Cisco, Extreme Networks and Mikrotik. This … more

    Over the last 6 years I've worked as the Operations Manager for a telecommunications company in my country, planning, designing and managing all the aspects of the company network that is based in Cisco, Extreme Networks and Mikrotik. This network is hybrid (cabled and wireless) Also, I manage the server infrastructure of the company, mainly Linux based, but also some Windows Server machines are available. I have more than 10 years of linux and networking experience and also I have deep knowledge on LAMP (Linux + Apache + MySQL + PHP) Development and Java programming. I can provide all my experience and skills to you or your organization and make sure I'll make always a great job, in time and risk free.  less

    linux-system-administration php cisco-ios cisco-pix ftp apache-administration mysql postfix virtualization 00 more less
    • $17.00 HOURLY RATE
    • 5.0
    • 13 HOURS
    • COLOMBIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 6 TESTS
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