展示 46 结果
高级威客
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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...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. 收起
雇用 MaTGaPa
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About me I have worked over 20 years at IT and telecom companies at following positions: it support, system administrator, applications administrator and monitoring administrator expert. I am "System Administration and IT Infrastructure Services" certified. I follow KISS methods. I understand OSI layer. With me is...About me I have worked over 20 years at IT and telecom companies at following positions: it support, system administrator, applications administrator and monitoring administrator expert. I am "System Administration and IT Infrastructure Services" certified. I follow KISS methods. I understand OSI layer. With me is easy to setup systems. I am not picky about what systems to use but i do have experience what to use. I know following operating systems + distros: debian, ubuntu, gentoo, suse, redhat, centos, rocky linux, almalinux and arch linux, freebsd, netbsd, openbsd, sun solaris plus ms windows servers. I also know following systems: Web servers: Apache, Nginx, Lighttpd, Litespeed, Hiawatha. Javascript: nodejs,npm Java web servers: Tomcat, Jrun, Jboss Proxy systems: Haproxy, Varnish, Squid. DB servers: MySQL (and forks, including MariaDB), PostgreSQL Mail systems: Postfix,exim,dovecot.. and implementing: DKIM, SPF, MX, DMARC. Monitoring systems: Nagios, zabbix, cacti, grafana. SMS: SMSC, Kannel DNS: Bind, Djbdns, Dnsmasq. VPS: Vmware, Hyper-v, Proxmox, bhyve, kvm, xen, openstack.. Containers: docker, lxc, jail, kubernetes Cloud providers: AWS, Digitalocean, Azure.. My knowledge does not stop here. I troubleshoot easily. Let's chat Please see my reviews of my previous works.. PS! With my bid you will get one week free support for work done 收起
雇用 servermaster
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I'm an expert IT with more than 20 years of experience in IT industry . i'll help you to manage your IT envirement and prvide a good solutions to manage your companyI'm an expert IT with more than 20 years of experience in IT industry . i'll help you to manage your IT envirement and prvide a good solutions to manage your company 收起
雇用 mr310
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I am currently seeking long-term remote and onsite job opportunities. With 13 years of experience, I have worked extensively with VoIP, Asterisk, cloud technologies such as AWS and OpenStack, Server security, Vtiger CRM, Open VPN, CentOS, Ubuntu, Redhat, VoIPSwitch, Oracle DB, RHEVM, Mysql, and Linux customization. I...I am currently seeking long-term remote and onsite job opportunities. With 13 years of experience, I have worked extensively with VoIP, Asterisk, cloud technologies such as AWS and OpenStack, Server security, Vtiger CRM, Open VPN, CentOS, Ubuntu, Redhat, VoIPSwitch, Oracle DB, RHEVM, Mysql, and Linux customization. I am also proficient in Python and PHP scriptwriting for IVR and AGI implementation on Asterisk. I have a team for support and further development. My expertise includes: - Linux - Hosting Systems Administration & Monitoring - Design and implementation of High-Performance SIP SBC - DevOps CI/CD - Service Optimization - Security Hardening - VoIP, Asterisk, SMS, Dongle, and FreePBX installation, configuration, and maintenance - WebRTC SIP Phone - Infrastructure Planning - Disaster Recovery - Shell Scripting - Capacity planning, application delivery planning - Network Troubleshoot, Spanning Tree, PVST, RSTP, HSRP, RIP, BGP, EGRP IGRP, MPLS - SAN Troubleshoot - GlusterFS, CEPH - NFS, SMB, ISCSI, SMTP - Linux performance tuning - MySQL, Oracle DB performance tuning - Laravel web application development - Web Security, Web benchmark, best practice - IPTV, Live streaming, VOD, FFmpeg - Raspberry Pi Please let me know if you have any questions or require further information. 收起
雇用 abusayed2004
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✅As a highly skilled and experienced network and system administrator with over 08 years of expertise, I hold notable certifications such as CCNP, CCNA, RHCE, and Certified Ethical Hacker (CEH) . I have established myself as an accomplished network, system, and security engineer, capable of delivering complete...✅As a highly skilled and experienced network and system administrator with over 08 years of expertise, I hold notable certifications such as CCNP, CCNA, RHCE, and Certified Ethical Hacker (CEH) . I have established myself as an accomplished network, system, and security engineer, capable of delivering complete solutions for designing, configuring, automating, and managing network and system projects. My proficiency in using simulation software such as Packet Tracer and GNS3, as well as real-life network and system devices, make me a valuable asset for any project. My few hands-on experiences is : ✅Network Design by MS Visio, Cisco packet tracer, GNS3, and EVE-NG ✅Netacad CCNA and CCNP packet tracer Labs activities, projects design and solution ✅Cisco routers, switches, FTD, FMC, and ASA firewalls. ✅WatchGuard, Palo Alto, CheckPoint Firewall, SonicWall, Fortigate, pfSense, OPNsense, Huawei firewalls. ✅Ubiquiti UDM Pro, Unifi Cloudkey, USG UniFi Firewall , Security Gateway, Switch, and AP devices ✅ Netgear, Huawei, Aruba switch, DrayTek router, TP-Link and others vendor wireless router configurations. ✅MikroTik Routers and switch configuration ✅ SNMP monitoring configuration: Observium, Librenms, Cacti, Nagios core ✅ Cloud Administrator: Azure, AMAZON AWS , Google GCP, OVH and Digital Ocean ✅VMware ESXi, VMware Workstation, VirtualBox, and Proxmox. ✅Ubuntu, Red Hat, CentOS, Debian, openSUSE, and Kali Linux distributions. ✅Windows server administration (Windows Server 2008, 2012, 2016, etc.), Active Directory management, Exchange Server administration, DNS configuration ✅Servers: HP Proliant Servers, Dell/EMC Servers, IBM ✅VLSM/subnetting of small to large enterprises ✅VLANs, Inter-VLAN routing, VTP, CDP, Ether-Channel(LACP, PAGP) ✅DHCP, NAT/PAT configuration and IP helper address ✅static and Dynamic Routing protocols (RIP, OSPF, EIGRP, BGP) configuration ✅Layer-3 Redudent/backup links Using HSRP, VRRP ✅Port security, ACL( access list) configuration ✅Network troubleshooting and optimization ✅VPN Configuration Expert (GRE , SSL, IPSEC, PPTP, OpenVPN & DMVPN) ✅Network automation script for any Cisco and FortiGate devices using python 收起
雇用 touhidecevw
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Ingeniero en computación, webmaster con nivel senior en programación de aplicaciones web basadas en PHP. Tengo experiencia en la construcción e integración y mantenimiento de sitios basados en el CMS WORDPRESS. EXPERIENCIA Los últimos 6 años me he dedicado a la construcción de sitios basados en wordpress +...Ingeniero en computación, webmaster con nivel senior en programación de aplicaciones web basadas en PHP. Tengo experiencia en la construcción e integración y mantenimiento de sitios basados en el CMS WORDPRESS. EXPERIENCIA Los últimos 6 años me he dedicado a la construcción de sitios basados en wordpress + elementor/divi + woocommerce, todos en diferentes perfiles de servicios que van desde espacios corporativos y blogs personales, pasando por tiendas virtuales a plataformas educativas de nivel medio. Para la configuración de plataformas educativas he utilizado componentes como: learndash, learnpress, tutorlms, sensei lms. ¿PORQUÉ CONTRATARME? - GARANTÍA: Ofrezco garantía post entrega que va de 10 a 30 días con cada uno de mis trabajos realizados, sea desarrollos a medida con PHP + LARAVEL o aquellos construidos con WORDPRESS. - 24/7: trato de estar activo en freelancer.com los 7 días de la semana en horarios (GMT-4), pero me ha tocado atender en la madrugada a clientes tanto conocidos, como interesados en proyectos de países con horarios diferentes al mío. - TRANSPARENCIA: Conmigo encontrará seriedad a la hora de dar respuesta a su necesidad, no voy a comprometerme en algo que no puedo cumplir, prefiero decir que no puedo hacerlo a decir que si y hacerle perder el tiempo/dinero con algo mal elaborado e incompleto. Les invito ahora a leer los comentarios que más de 250 clientes me han dejado y donde la mayoría suele recontratarme, reiterando la garantía de mi responsabilidad y transparencia. 收起
雇用 castillovox
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⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐ I'm a Certified ✅ Linux SysAdmin having 10 plus years of experience. I have strong knowledge of Linux server, Hosting panels, AWS services and cPanel server. Working with these technologies from past 10 years. I'm also working with setup and build-rebuild servers and website migration and database...⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐ I'm a Certified ✅ Linux SysAdmin having 10 plus years of experience. I have strong knowledge of Linux server, Hosting panels, AWS services and cPanel server. Working with these technologies from past 10 years. I'm also working with setup and build-rebuild servers and website migration and database migration etc. ⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐ ✅ Web Hosting Expertise:- WHM/cPanel, Website Panel, Plesk Panel, aapanel, Direct admin, Virtual min, ISPconfig panel, Server Setup and Management with security and optimisation, Server Migration, SSL Installation , NGINX and Apache ⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐ ✅ Linux Expertise:- RedHat, Fedora, CentOS, Ubuntu / Debian, Amazon Linux. ⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐ ✅ Skills:- DNS, Domain, Website Migration , CI-CD, Pipeline, GitHub Actions, GitHub runner, SSL Installation of domain and subdomains, Installation of LAMP, Nodejs, NPM, JAVA, .NET Core websites setup, IIS, WordPress, PHP, PhpMyAdmin, MySQL, Installation of windows software. ⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐ ✅ Cloud Expertise:- Server Setup & management..... AWS Cloud Services, Digital Ocean, Vultr, HostGator, Site Ground, Google cloud, Azure, Li-node, GoDaddy: If You give me an opportunity to work on Your project, You will get Fast and Secure work with 100% satisfaction. Thanks ⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐ 收起
雇用 sandeepatwork
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Profile: 20 years of experience in system and network administrator role, 25 years in the IT industry. Now in trend - relocation servers/services from local(bare metal) and VPS/Dedicated(change geolocation) to other sites in other geolocation. + acquired skills since 2021, security and deployment in production virtual...Profile: 20 years of experience in system and network administrator role, 25 years in the IT industry. Now in trend - relocation servers/services from local(bare metal) and VPS/Dedicated(change geolocation) to other sites in other geolocation. + acquired skills since 2021, security and deployment in production virtual free infrastructure on-site providers - OVH and OneProvider. Cloud technologies: Azure, AWS, GCC, + more new cloud providers. Virtualization technology: Vmware vSphere: vCenter, ESXi, Horizon &, etc; Proxmox, MS Hyper-V, Citrix XenServer, XenApp&etc. OS: Debian\Ubuntu family, CentOS family, Arch family, Windows 2003/2008/2012/2016/2019 Network: routing, IDS/IPS(firewall), NetGate (pfSense), Mikrotik, and other router brands VPN[L2TP/IPsec, L2TPv3/IPsec, SSTP], OpenVPN, WireGuard, and all any know. MS - AD, DNS, GPO, RDS\APP(TS), IIS, Hyper-V\VDI, RRAS 收起
雇用 mirgorodskyev
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We are Canadian-Ukrainian team of highly professional software developers and system administrators with more than 20 years expertise. OUR MAIN SPECIALIZATIONS: 1) WEB DEVELOPMENT & SOFTWARE DEVELOPMENT 1.1) FRONT-END: HTML, HTML5, CSS3, Bootstrap, TailwindCSS 1.2) JAVASCRIPT: JavaScript, ES6+, Typescript,...We are Canadian-Ukrainian team of highly professional software developers and system administrators with more than 20 years expertise. OUR MAIN SPECIALIZATIONS: 1) WEB DEVELOPMENT & SOFTWARE DEVELOPMENT 1.1) FRONT-END: HTML, HTML5, CSS3, Bootstrap, TailwindCSS 1.2) JAVASCRIPT: JavaScript, ES6+, Typescript, Node.js, MEAN, MERN, MEVN, Angular, React.js, Vue.js, Nuxt.js, Next.js, Gatsby.js, jQuery 1.3) BACK-END 1.3.1) LAMP (Linux, Apache, MySQL, PHP) including Symfony, Laravel, Yii, Zend, CodeIgniter, CakePHP 1.3.2) Python (Python, Django, Flask, FastAPI) 1.3.3) .NET stack technologies (C#, ASP.NET, .NET Core) 1.4) OPEN SOURCE SOLUTIONS 1.4.1) E-commerce Platforms: Shopify, Magento, WooCommerce, Prestashop, OpenCart, BigCommerce, Shopware, osCommerce 1.4.2) CMS: WordPress, Drupal, Joomla, TYPO3 etc. 1.4.3) CRM: SuiteCRM, SugarCRM 2) MOBILE DEVELOPMENT 2.1) Android native development: Java, Kotlin 2.2) iOS native development: Swift, Objective-C 2.3) Cross platform development: Flutter, React Native, Ionic 3) DESIGN 3.1) Website Design (UI (User Interface), UX (User Experience) etc.) 3.2) Graphic Design (Creative Design, Digital Design, Advertisement Design etc.) 3.3) Corporate Identity (Brand Boooks, Business Cards, Logos, LetterHeads etc.) 4) INTERNET MARKETING 4.1) Social Media Marketing (Linkedin, Xing, Facebook, YouTube, Instagram etc.) 4.2) SEO (SEO Copywriting, SEO Auditing, White Hat SEO) 4.3) PPC Marketing (Google Adwords, Google Ads, Facebook Ads, YouTube Ads, Instagram Ads etc.) 4.4) Email Marketing 5) MANAGED SERVICES 5.1) 24/7 TECHNICAL SUPPORT 5.2) SYSTEM ADMINISTRATION SERVICES Our team of high qualified System Administrators have huge experience with technologies covering: - different distributions of OS Linux, Unix and MS Windows Server systems; - different types of virtualization (ProxMox, Virtuozzo, OpenVZ, KVM, XEN, VMware, Hyper-V); - VPN/DNS/IPTables/Firewalls/web servers/mail servers configuration and tuning etc.; - cloud solutions (AWS, MS Azure, Google Cloud, Alibaba Cloud, OVHcloud, DigitalOcean, Linode etc.); 6) HOSTING SERVICES provided by our hosting subdivision under trade mark "TanHost" 6.1) Cloud based solutions (e.g. configuration and technical support of Private Clouds); 6.2) Сollocation services, the providing for rent dedicated and VPS/VDS (virtual servers); 6.3) Shared Hosting; 6.4) Domain names registration services in more than 100 international zones; 6.5) SSL Certificates. 7) EMBEDDED SYSTEMS 7.1) Embedded software development 7.2) Internet of Things (IoT) 7.3) Microcontrollers programming 7.4) Arduino microcontrollers programming OUR CREDO: Reputation – is above anything else! We help our customers to grow success and we grow together with our customers! We are flexible to meet our clients' needs. We make it simple... 收起
雇用 tangramua
