Dovecot Experts For Hire
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Sponsored Freelancers
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__________________________ VERY IMPORTANT!!! “Hi I'm Matias, someone is trying to impersonate me, this account is the only one active and verified by freelancer! I DON'T USE ANY OTHER MEANS OF CONTACT, ONLY FREELANCER CHAT!” ----------------------------------------- I started with BeOS in 2002, because of a friend,...__________________________ VERY IMPORTANT!!! “Hi I'm Matias, someone is trying to impersonate me, this account is the only one active and verified by freelancer! I DON'T USE ANY OTHER MEANS OF CONTACT, ONLY FREELANCER CHAT!” ----------------------------------------- I started with BeOS in 2002, because of a friend, who showed me something other than Windows, Always I worked repair PC & Laptops. Now I have more 10 years of experience in Server Linux. I can manager servers dedicated, servesr VPS, servers shared, etc. Setup and management you server; Apache/Nginx/Tomcat. SMTP Postfix, POP/IMAP Dovecot. FTP Vsftpd, Proftpd, Pure-ftpd-mysql. Dns Bind9, dnsmasq. File Server & printer Samba (dc-ac). Network administrator: isc-server-dhcp, openvpn, etc. Install and renew SSL certicate. All services on cloud; AWS, Azure, etc. Also website and E-mail migrations. ALL panels and web managers. Management all Linux distributions. Setup, security and optimization your server. less
Hire MaTGaPa
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PROFESSIONAL SUMMARY: --- - Familiar with network TCP/IP principles, design, planning, construction delivery, and continuous optimization of IDC data center, campus network, and office network architecture, more than ten years of domestic and overseas project experience - Familiar with all kinds of mainstream...PROFESSIONAL SUMMARY: --- - Familiar with network TCP/IP principles, design, planning, construction delivery, and continuous optimization of IDC data center, campus network, and office network architecture, more than ten years of domestic and overseas project experience - Familiar with all kinds of mainstream switches, routers, firewalls, and Internet behavior management, such as Huawei, Cisco, Juniper, H3C, Palo Alto, Sangfor, etc. Can configure and tune such as MPLS VPN, SDWAN, VXLAN, SPINE-LEAF, VXLAN, EVPN, NAT, STP, etc., know how to use Wireshark, Zabbix, mtr, network fault analysis, etc. - Familiar with some non-mainstream and open source network operating systems, such as Vyos, RouterOS, Mikrotik soft router configuration and tuning - Familiar with various network protocols, such as TCP/IP, familiar with the ISO 7-layer network protocol, various routing protocols, such as BGP, OSPF, RIP - Familiar with Linux operating system, can configure and tune Centos, Ubuntu, Red Hat and other Linux operating systems - Familiar with container orchestration such as Docker/k8s, container network flannel, Calico BGP, cloud computing VPC planning, virtualization KVM, Vmware, Nginx, Python, Shell, Linux system operation and maintenance technology, Windows Server - Familiar with Python/Shell, can independently develop operation and maintenance tools, connect to API, and submit operation and maintenance efficiency - Have rich experience in network application and system integration project implementation, can provide one-stop network architecture, network application, network information security solutions - Hold Cisco CCNP, intermediate supervision certificate (equivalent to PMP) - Fluent in Mandarin, Cantonese, and English, good English reading and writing skills SKILLS: --- Switch, Router, firewall, IPSecVPN, BGP, OSPF routing protocol, Vxlan, Cisco, Huawei, Juniper, Linux/Shell programming, Centos, Ubuntu, Python programming, KVM/VMware virtualization, Windows Server, container Docker, K8s, cloud computing, load balancing, LVS load balancing, EDR, security scanning, network troubleshooting, and troubleshooting, iperf3, hping3, telnet, mtr, traceroute less
Hire gbcbooks
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strehlcristiano strehlcristiano
$30 USD / hour
Linux Senior | LPI | Project Manager | PMP | ITILBrazilProfessional with extensive experience in IT since 2005, closely following the technological evolution of the sector. With technical training in Computer Networks and solid experience in the Free Software environment, acquire expertise in Linux platforms and LPI certifications. My trajectory includes a rapid and...Professional with extensive experience in IT since 2005, closely following the technological evolution of the sector. With technical training in Computer Networks and solid experience in the Free Software environment, acquire expertise in Linux platforms and LPI certifications. My trajectory includes a rapid and consistent professional evolution, finally, a PMP/ITIL certified Project Manager. In this role, I managed implementations of IT monitoring systems and KPIs in large companies and financial institutions. I have expertise in the implementation and training of the OTRS HelpDesk and ITSM solution, being one of the first professional certificates in Brazil, which qualifies me for HelpDesk and ITSM management. I also know following systems: ✅ Server Operating Systems: Linux SO: Ubuntu, Debian, RHEL, CentOS, Slackware; and derivations ✅ Hosting Panels: WHM-cPanel, PLESK, CyberPanel, aaPanel, CWP ✅ Web Servers: APACHE, NGINX, PHP, WordPress ✅ Mail Servers: Postfix, Dovecot, SpamAssassin, Clamav, MailScanner, RoundCube, Zimbra, Exim, SPF, DMARC, DKIM, Policyd-Weight, MailWatch, Baruwa, PostfixAdmin ✅ Database Servers: MySQL, PostgreSQL, MariaDB ✅DNS, DHCP: Linux Bind DNS (include Reverse DNS, MX, replication..) and DHCP services ✅ Directory service: OpenLDAP; Linux Integration with Active Directory ✅ File servers: FTP Server and Samba ✅Scripting: Linux Shell Scripting ✅Firewall and IDS: Iptables, Fail2Ban, Snort, SnortSam, Base ✅Proxy System: Squid, DansGuardian ✅ Monitoring Zabbix, Cacti, Nagios Why Choose Me? ✅24 hours availability ✅Unlimited revisions ✅Fast response less
Hire strehlcristiano
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With two decades of hands-on experience in Linux environments and a specialization in Debian-based systems, I offer expert consulting services aimed at enhancing operational efficiency, securing systems, and ensuring your IT infrastructure adheres to the highest standards of reliability. Core Consulting Services: *...With two decades of hands-on experience in Linux environments and a specialization in Debian-based systems, I offer expert consulting services aimed at enhancing operational efficiency, securing systems, and ensuring your IT infrastructure adheres to the highest standards of reliability. Core Consulting Services: * System/Server Administration: Manage critical infrastructure across global deployments, with proven experience serving Fortune 500 companies across North America, Asia, and Europe. * VoIP Solutions: Design and implement custom Asterisk-based systems, including cutting-edge integrations with AI/ML services for text-to-speech, speech-to-text, and large language models. * API Integration & Backend Development: Create robust backend systems integrating modern cloud services like Twilio for SMS/email gateway functionality, custom AGI scripts, and advanced telephony solutions. * Remote Infrastructure Management: Provide expert remote administration across multiple time zones, with experience managing systems in the US, China, Japan, the Netherlands, and Australia. Specialized Expertise: * Global Systems Architecture: Design and implement solutions that work across international boundaries, considering regional compliance requirements and technical constraints. * Modern VoIP Integration: Develop custom telephony solutions that leverage artificial intelligence and machine learning capabilities, bridging traditional VoIP systems with next-generation technologies. * Cross-Platform Communication: Build reliable backend systems that integrate multiple communication channels (voice, SMS, MMS) with enterprise-grade reliability. * Time-Zone Optimized Operations: Maintain high system availability across multiple time zones with proven experience in 24/7 global operations. Get in Touch Elevate your systems and security with expert guidance. Contact me for a detailed consultation and discover how your business can benefit from my specialized expertise. less
Hire cybiko123
