Postfix Professionals & Consultants

Showing 49 freelancers

Postfix Professionals & Consultants

Showing 49 freelancers

  • Server and Network Administration Specialist

    I have been working in Linux and Cisco platforms since 2009. Achieved my RHCE and CCNA certifications. I am currently working towards CCNP. Currently, I'm working in the Data Network of an International Internet Gateway. I have also worked … more

    I have been working in Linux and Cisco platforms since 2009. Achieved my RHCE and CCNA certifications. I am currently working towards CCNP. Currently, I'm working in the Data Network of an International Internet Gateway. I have also worked as a System Admin in a University and managed Servers that provided services for more than 500 hosts. I have worked in one of the largest ISPs in Bangladesh. I have deployed Linux Servers for many organizations and troubleshooted many Server related issues during my work in the ISP.  less

    linux-system-administration cisco-ios nagios iptables clustering samba ospf cisco-routers asterisk postfix 00 more less
    • $16.67 HOURLY RATE
    • 5.0
    • 16 HOURS
    • BANGLADESH
    • LAST ACTIVE
    • 20 PORTFOLIO ITEMS
    • 5 TESTS
  • Messaging Consultant

    Over the last 10+ years experience in the Linux and Messaging field: -Email Platforms (Qmail, Postfix, Zimbra, Sendmail ) which includes deployment, Tuning and Migration. - Zimbra OSE/NE Specialist - Redhat clustering - load balancing and high availability - Monitoring (cacti, nagios, snmp,etc … more

    Over the last 10+ years experience in the Linux and Messaging field: -Email Platforms (Qmail, Postfix, Zimbra, Sendmail ) which includes deployment, Tuning and Migration. - Zimbra OSE/NE Specialist - Redhat clustering - load balancing and high availability - Monitoring (cacti, nagios, snmp,etc.) - DNS ( Bind , TinyDNS ) - nginx reverse Proxy - Regular Expressions - Perl/Bash Scripting - Splunk Data Analytics - Puppet Automation tool for System Administration  less

    perl clamav spamassassin mysql postfix 00 more less
    • $14.44 HOURLY RATE
    • 4.3
    • 418 HOURS
    • INDIA
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 5 TESTS
  • Network Administration, System Administration (Windows/Linux), VMware

    I am a Cisco Certified Network Engineer with more than 4 years hands-on experience on Cisco equipments like Cisco layer-2/layer-3 switches , routers, ASA firewall & PIX. Deploy and monitoring Linux based & Windows based services like HTTP,FTP,SAMBA,CACTI,NAGIOS … more

    I am a Cisco Certified Network Engineer with more than 4 years hands-on experience on Cisco equipments like Cisco layer-2/layer-3 switches , routers, ASA firewall & PIX. Deploy and monitoring Linux based & Windows based services like HTTP,FTP,SAMBA,CACTI,NAGIOS,SQUID, Linux Based Email Servers & Solarwinds Familiar with products of other networking equipment manufacturing companies like D-link, Netgear, Zyxel, MikroTik etc. Currently maintain a LAN and WAN network of at least 3000+ users with 3 remote branches and seeking for an opportunity to achieve better.  less

    network-administration network-security network-planning linux-system-administration windows-administration cisco-routers cisco-asa internet-research postfix vmware-esx 00 more less
    • $5.56 HOURLY RATE
    • 5.0
    • 85 HOURS
    • BANGLADESH
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 4 TESTS
    ASSOCIATED WITH:
  • System Administrator, Windows(MCSE) & Linux Server

    I have been working as System administrator for more than 6 years in well knowned Software development & Hosting company. I have thorough knowledge and hands on Experience on for the following areas of both Windows & Linux:1. Web server(IIS … more

    I have been working as System administrator for more than 6 years in well knowned Software development & Hosting company. I have thorough knowledge and hands on Experience on for the following areas of both Windows & Linux:1. Web server(IIS, Apache, Nginx) , 2. DNS server3. FTP Server, 4. Mail Server(Sendmail, Postfix, Exim, Exchange)5. VPN Server setup and configuration.6. Database server (MS-SQL, MySql) 7. Version Controlling Server like Subversion, Visual Source Safe8. Various CMS like Joomla, Wordpress, Drupal, Ektron, DotnetNuke 9. Continuous Integration Process with CruiseControl/Hudson/NantI also provide support to many dedicated servers hosted in Rackspace, Godaddy, 1and1, Bluehost, Hostmonster, Blacknight etc.  less

    linux-system-administration windows-administration rackspace-cloudservers dns ftp apache-solr subversion apache-administration sendmail postfix iis jenkins apache-tomcat redmine coldfusion bugzilla git 00 more less
    • $20.00 HOURLY RATE
    • 4.9
    • 557 HOURS
    • BANGLADESH
    • LAST ACTIVE
    • 6 PORTFOLIO ITEMS
    • 4 TESTS
    GROUPS:
  • Linux, Unix, Windows administrator, VmWare, Network, Technical support

    Linux, Unix, Windows system administrator, Virtualization, Networking. I have experience with: Amazon Web Services, VoliaCloud OS: Windows, Linux, FreeBSD Virtualization: VmWare ESX, VmWare Workstation, VirtualBox, Proxmox, Hyper-V. Server panel: WHM/Cpanel, ISPmanager, Zpanel, Webmin Web-server: Apache, Nginx DNS-server: Bind FTP-server … more

    Linux, Unix, Windows system administrator, Virtualization, Networking. I have experience with: Amazon Web Services, VoliaCloud OS: Windows, Linux, FreeBSD Virtualization: VmWare ESX, VmWare Workstation, VirtualBox, Proxmox, Hyper-V. Server panel: WHM/Cpanel, ISPmanager, Zpanel, Webmin Web-server: Apache, Nginx DNS-server: Bind FTP-server: vsFtpd, Filezilla Mail-server: Postfix, hMail Web-client from mail: SquirrelMail, Roundcube Network equipment: switch, router, ADSL-modem, Wireless access point, etc. (Cisco, D-link, Mikrotik) VPN: OpenVPN, PPTP Proxy-Server: Squid, UserGate CMS: Wordpress, Joomla Server software: PHP, SSH, Cron And many more that are not included in this list  less

    linux-system-administration network-administration tcp-ip windows-xp-administration vmware-esx squid ubuntu openvpn virtualization apache-administration phpmyadmin dns ssh postfix cisco-routers wordpress redhat-administration vpn xmpp 00 more less
    • $20.00 HOURLY RATE
    • 5.0
    • 47 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 6 TESTS
  • Server and Network Administrator

    My prime goal is to help peoples who are in need of Server/Network related issues by accomplish their requirements and I feel comfortable working on both Linux & Windows platform. With 9+ years of experience I have configured several email … more

    My prime goal is to help peoples who are in need of Server/Network related issues by accomplish their requirements and I feel comfortable working on both Linux & Windows platform. With 9+ years of experience I have configured several email servers (Postfix, qmail on Linux, Exchange Server, MDaemon on windows), Web Servers (Apache, IIS), Proxy Servers using Squid, DNS with BIND and OpenDNS, VPN server, Database Server with MySQL, SQL Server, Migrated lots of website using cPanel/WHM, Plesk etc. and have deployed multiple virtual servers like AWS EC2, Hyper V and VMWare on Linux and Windows platform.  less

    linux-system-administration microsoft-small-business-server-administration mail-server-implementation microsoft-exchange-server zimbra-administration postfix domain-migration iis apache-administration cpanel amazon-web-services vmware-administration mysql php microsoft-sql-server-administration sugar-crm vtiger 00 more less
    • $13.33 HOURLY RATE
    • 4.8
    • 291 HOURS
    • BANGLADESH
    • LAST ACTIVE
    • 5 PORTFOLIO ITEMS
    • 8 TESTS
  • Senior Systems Admin, Network Admin

    An IT Professional with over 12 years hands on experience on Systems, Servers and VMWare administration. Specialties: 1. Windows Server 2008 2. Microsoft Exchange Server 5.5, 2003, 2007, 2010 3. Anti-virus/Malware removal 4. Active Directory, DNS, DHCP, File … more

    An IT Professional with over 12 years hands on experience on Systems, Servers and VMWare administration. Specialties: 1. Windows Server 2008 2. Microsoft Exchange Server 5.5, 2003, 2007, 2010 3. Anti-virus/Malware removal 4. Active Directory, DNS, DHCP, File Services, DFS, WSUS administration and troubleshooting 5. Network configuration(tcp-ip/cisco ios/monitoring) 6. Symanted Backupexec, Acronis, Appassure Replay 7. VPN and Remote access 8. Disaster Recovery, from bare metal restores, to VMware rebuilds  less

    windows-administration vmware-administration cisco-ios mail-server-implementation lamp-administration microsoft-exchange-server microsoft-small-business-server-administration domain-migration disaster-recovery vmware-esx google-apps google-sites-administration postgresql linux-system-administration centos postfix apache-administration mysql 00 more less
    • $50.00 HOURLY RATE
    • 5.0
    • 101 HOURS
    • CANADA
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 4 TESTS
  • 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:
  • Linux System, Network and VOIP Engineer/Admin - more than 10 years

    I am having more than 12 years of Linux system and network administration, VoIP deployments, system integration. My major expert areas are: >>TCP/IP networking & Security :- Advanced ip routing, forwarding, filtering and firewall with Netfilter Iptables, TCP Wappers, Fail2Ban >>Servers … more

    I am having more than 12 years of Linux system and network administration, VoIP deployments, system integration. My major expert areas are: >>TCP/IP networking & Security :- Advanced ip routing, forwarding, filtering and firewall with Netfilter Iptables, TCP Wappers, Fail2Ban >>Servers :- Sendmail, Postfix, Dovecot, Courier IMAP, Squirrelmail, Roud cube, BIND, Apache, Nginx, VSFTPD, DHCPD, Squid, Samba, Ziproxy(image compression proxy server), any open source or closed source software in the field >> Control Panels :- CPanel installation and administration >>VoIP :- FreeSwtich, Asterisk based products (Bare Asterisk, Elastix, Trixbox, FreePBX or any related), secure RTP streams (SRTP) with Transport Layer Security (TLS) with or without Server Certificate, CRM integration and Dialers >>Monitoring and remote admin :- Log analyzing, Monitoring, Remote desktop, Remote Admin using tools such like Sarg, Nagios, FreeNX, SSh/Telnet >>Scripting :- Bash, PHP, Perl, Curl >>Web and Database :- SQL Server, MySQL, HTML, PHP, Java Scripts >>Inter-networking :- LAN/WAN using Cisco and DLink Routers, Managed and unmanned Switches, Structured cabling and Fiber cabling systems, >>Telecommunication :- Circuit Switching, SDH and PDH, Ip based networks, Transmission, Telecommunication network implementation and maintenance >>Virtualization:- WMWare Exsi 4/5, HyperV, VirturlBox, Zen >>Operating Systems :- Redhat or Dabian based servers such like CentOS, Ubuntu, Dabian etc,. ### My time zone : GMT +5.30 (Asia/Colombo) Pls consider this on hiring me ### Quality of work : Commit to provide 100% not a bit less than that. If I say it can be done .. definitely it is possible. If I say cant .. surely I cant do that. Welcome clients...  less

    linux-system-administration asterisk vmware-esx elastix trixbox php perl centos ubuntu nagios sendmail postfix iptables squid mail-server-implementation ftp cisco-routers network-administration email-deliverability-consulting email-marketing google-apps windows-administration unix-shell 00 more less
    • $22.22 HOURLY RATE
    • 4.8
    • 73 HOURS
    • SRI LANKA
    • LAST ACTIVE
    • 24 PORTFOLIO ITEMS
    • 4 TESTS
  • Linux,VoIP and Windows Server Administrator

    I have over 4 years of hands on experiences in maintaining various servers mostly Microsoft & Linux based systems. Areas of my expertise are: 1. Asterisk, Elastix, Trixbox, FreePBX, Vicidial, A2Billing 2. Amazon EC2,S3,VPS,VMWare,ESXi,Xen,Open VZ … more

    I have over 4 years of hands on experiences in maintaining various servers mostly Microsoft & Linux based systems. Areas of my expertise are: 1. Asterisk, Elastix, Trixbox, FreePBX, Vicidial, A2Billing 2. Amazon EC2,S3,VPS,VMWare,ESXi,Xen,Open VZ 3. Mysql & MSSQL server 4. Windows based Servers, LAMP, Mail, DNS, Proxy Server 5. OpenVPN and L2TP/IPSec VPN 6. Webmin,Cpanel, WHM,Zpanel 7. Cisco,Mikrotik, DD-WRT,OpenWRT Special note: I am open for full-time job from 6:00 AM to 6:00 PM (PST)  less

    windows-administration cpanel wordpress freepbx elastix asterisk amazon-ec2 vpn cisco-routers microsoft-dynamics php joomla magento seo mysql iis amazon-web-services sendmail postfix a2billing network-planning technical-support centos microsoft-small-business-server-administration lamp-administration whm network-security database-administration 00 more less
    • $5.56 HOURLY RATE
    • 4.9
    • 617 HOURS
    • BANGLADESH
    • LAST ACTIVE
    • 9 PORTFOLIO ITEMS
    • 9 TESTS
    GROUPS:
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