展示 2286 结果
高级威客
-
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
-
Your search for the perfect freelancer ends here! As a computer engineer with over two decades of experience in the mainstream IT industry, I can deliver a wide range of hi-tech services including: ✅ Linux system administration (Ubuntu, Debian, Red Hat, CentOS, and more) ✅ Cloud computing (AWS, GCP, Oracle Cloud,...Your search for the perfect freelancer ends here! As a computer engineer with over two decades of experience in the mainstream IT industry, I can deliver a wide range of hi-tech services including: ✅ Linux system administration (Ubuntu, Debian, Red Hat, CentOS, and more) ✅ Cloud computing (AWS, GCP, Oracle Cloud, DigitalOcean, Azure, and more) ✅ Website, server, and email migration ✅ Cybersecurity consulting ✅ Malware removal and security hardening ✅ Various CMS and E-commerce solutions and troubleshooting (WordPress, Joomla, Shopify, osCommerce, Zen Cart, Magento, MediaWiki, phpBB, and more) I work solo, and known among peers for my fast turnaround time and ability to fix difficult problems. Where others have failed, I will succeed. ✌️ My credentials include multiple certifications from Google, Microsoft, CompTIA, Cisco, AWS, cPanel, Plesk, MongoDB, (ISC)², Fortinet, and more. It took hundreds of hours of training and practice to pass the vendor exams, making me one of the most capable freelancer for your job. As of 2014, I am part of the Preferred Freelancer Program, the elite top 1% on this platform. As of 2022, I am a Freelancer Ambassador, tasked with special duties including moderating the community groups. My timezone is GMT +6, though I work round-the-clock to cater the needs of my clients in over 70 countries worldwide. Click on the "Contact" button now to get started. If I have bid on your project, just click that "Award" or "Chat" button. I look forward to working with you! Notes for my first-time clients: ☑️ I have undergone a thorough and rigid identity verification process to receive the blue verified badge. This makes me more trustworthy when dealing with confidential data. ⛔ I do not work through remote access software such as TeamViewer. ⛔ I do not "Accept" projects until verifiable login credentials are provided. 收起
雇用 Ekushey
-
I have 7 years of experience deploying and maintaining a wide range of systems and services. My expertise includes: ✅ Server Operating Systems: Windows Server 2003 to 2022, Ubuntu, Debian, RHEL, CentOS. ✅ Directory service: Active Directory, OpenLDAP. ✅DNS, DHCP: Windows Server DNS, DHCP and Linux DNS, DHCP...I have 7 years of experience deploying and maintaining a wide range of systems and services. My expertise includes: ✅ Server Operating Systems: Windows Server 2003 to 2022, Ubuntu, Debian, RHEL, CentOS. ✅ Directory service: Active Directory, OpenLDAP. ✅DNS, DHCP: Windows Server DNS, DHCP and Linux DNS, DHCP services. ✅ Virtualization: Microsoft® Hyper-V, VMware Hypervisors (ESXI, vCenter), Proxmox, VirtualBox. ✅ Cloud Computing Platforms: AWS Amazon Web Services, Microsoft®, Google Cloud Platform(GCP). ✅ Self-Hosted Clouds: NextCloud, OwnCloud, Seafile. ✅ File servers: IIS FTP, proftpd, FileZilla FTP Server, SAMBA. ✅ Web servers: IIS, APACHE, NGINX ✅Scripting: PowerShell scripting, Bash Scripting ✅Containers: DOCKER, Windows Subsystem for Linux (WSL). ✅Backup Systems Veaam Backup, Iperius Backup, UrBackup. ✅ Mail servers: POSTFIX, EXIM, Microsoft Exchange 2000 to 2019, QMAIL ,Zimbra ,Mail Enable , SmarterMail, hMail. ✅ Database servers: MySQL, PostgreSQL ✅ Firewalls: Windows firewall,ISA/Forefront TMG, MikroTik, PFSense, Zywall and other Routers; ✅ Data Storage Systems: Netapp, FAS, EMC, VNX; ✅NAS: FreeNAS, TrueNAS ,Synology, QNAP, Buffalo ✅ Monitoring ZABBIX, CACTI, NAGIOS ✅ Hosting Panels: WHM-cPanel, PLESK, CyberPanel, aaPanel Why Choose Me? ✅24 hours availability ✅Unlimited revisions ✅Fast response Microsoft® Certified ** MCSA | MCSE | MCT ** 收起
雇用 AZTURK1
-
Thanks for stopping by my Profile! I am a well-qualified FullStack Engineer familiar with wide range of programming utilities and languages. Knowledgeable of backend and frontend development requirements. Handles any part of the process with ease. Collaborative team player with excellent technical abilities...Thanks for stopping by my Profile! I am a well-qualified FullStack Engineer familiar with wide range of programming utilities and languages. Knowledgeable of backend and frontend development requirements. Handles any part of the process with ease. Collaborative team player with excellent technical abilities offering 10 years of related experience. - Programming Languages : JavaScript, C#, Java, Python, CSS, HTML5, HTML6, C++, TypeScript - Frontend React, Redux, React Native, Angular, Vue.js, Flutter, Jquery, Ember.js - Backend Node.js, Django, Express.js, ASP.NET, Ruby on Rails, Laravel - DevOps & System Amazon Web Service, Azure, Linux System Administration - Database MongoDB, MySQL, MariaDB, PostgreSQL, Oracle, SQL Server, Redis, Firebase - Security Cyber Security, System security - OpenAI Building ChatBot using OpenAI models, Fine Tuning, Training Dataset, Voice Chatting As you can see, I am well adept at working with all the relevant platforms, and if you’re interested in getting an idea of how I work and what I create, feel free to reach out via Freelancer! I'm always available through message and am happy to give free consultations and proposals for all new and returning clients! 收起
雇用 mogsten
-
Founder of a C-Corp in the US Software Engineer / Cybersecurity Specialist / Network Security Engineer / Web and Mobile Application Developer with 5+ years of experience and senior computer scientist , Certified from Cisco as a "Junior Cybersecurity analyst " and from Altair Rapidminer as "Machine Learning...Founder of a C-Corp in the US Software Engineer / Cybersecurity Specialist / Network Security Engineer / Web and Mobile Application Developer with 5+ years of experience and senior computer scientist , Certified from Cisco as a "Junior Cybersecurity analyst " and from Altair Rapidminer as "Machine Learning Professional" and "Data Engineering Professional" ☑️ Linux system administration "Ubuntu, Debian, Kali and CSI Linux" ☑️ Cloud computing "Amazon Web Services, Google Cloud, Microsoft Azure , Oracle Cloud and DigitalOcean" ☑️ Database Development and Administration "Using SQL , MySQL , Python , PhpMyAdmin and PostgreSQL" ☑️ Website, server, and email migration "Apache and Nginx webservers" ☑️ Various Cybersecurity solutions from most of the security vendors products and services including but not limited to "Cisco Umbrella , Cisco ISE , Cisco Chassis , Cisco Routing and Switching ,Snort IDS/IPS , FortiSIEM ,Fortigates, IBM QRadar , Elasticsearch stack SIEM , Graylog , SPLUNK and LogRhythm" ☑️ Mobile Application Development "Native Using Kotlin or Swift" and Cross platform "Using Flutter and React Native" ☑️ Various CMS and E-commerce solutions and troubleshooting "WordPress, Joomla, Shopify, osCommerce, Zen Cart, Magento, MediaWiki, phpBB, and more" 收起
雇用 ahmedhassan52
-
I bring over 15 years of extensive experience in the fields of system administration and DevOps, making me a seasoned professional in managing and optimizing IT infrastructures. With a strong foundation in virtualization technologies, I excel in creating efficient and scalable virtualized environments. My expertise...I bring over 15 years of extensive experience in the fields of system administration and DevOps, making me a seasoned professional in managing and optimizing IT infrastructures. With a strong foundation in virtualization technologies, I excel in creating efficient and scalable virtualized environments. My expertise extends to a wide range of Linux systems, and I am well-versed in handling various distributions, ensuring their stability, security, and performance. I have a proven track record of successfully deploying web applications, guaranteeing smooth and reliable online experiences for users. One of my core strengths lies in managing system updates and applying security patches promptly, reducing vulnerabilities and minimizing downtime. My commitment to network security is unwavering, and I implement robust measures to protect data and maintain the integrity of systems. Furthermore, my proficiency in Cisco networking solutions allows me to design, configure, and troubleshoot complex network infrastructures, ensuring seamless connectivity and optimal performance. Additionally, I have a solid understanding of HPE (Hewlett Packard Enterprise) equipment, enabling me to efficiently manage and maintain these devices to meet organizational needs. With my extensive knowledge, practical experience, and dedication to staying updated with the latest industry trends, I am well-equipped to contribute significantly to any organization's IT operations, ensuring they run smoothly, securely, and efficiently. 收起
雇用 rupa37
-
PREFERRED DEVELOPER IN FREELANCER.COM Fast and efficient python and web development programmer. working hard at good price. I did lots of small and large project in, Django, Vue, Scrapy, Android, Node.js, Phaser.js HTML5 game library, Backbone.js, Underscore.js , Bootstrap. Translate Multiple books in Persian...PREFERRED DEVELOPER IN FREELANCER.COM Fast and efficient python and web development programmer. working hard at good price. I did lots of small and large project in, Django, Vue, Scrapy, Android, Node.js, Phaser.js HTML5 game library, Backbone.js, Underscore.js , Bootstrap. Translate Multiple books in Persian language. I developed RTL and Localized app in RTL Language like Arabic and Persian. Programming website crawlers, setup WSGI with Nginx and Apache. Voip projects and PBX using Opensips and FreeSwitch Key facts: o Over 90 successfully completed projects, o Translate Multiple book in AI, CV and Image Processing. o Successful apps on the marketplaces, (Local West Asia Android market place) o Software Development - over 10 years, o Mobile Software Development (including Android and HTML5 APP) - over 5 years, o Web Development (including Python, Ruby, NodeJS and Java) - over 10 years. 收起
雇用 devops724
-
I am a seasoned Linux System Administrator with a strong focus on web hosting services and IT support. My expertise lies in optimizing Linux-based web servers, MYSQL tuning, troubleshooting, and disk management. I offer a comprehensive repair service and can install and configure a wide range of software on your...I am a seasoned Linux System Administrator with a strong focus on web hosting services and IT support. My expertise lies in optimizing Linux-based web servers, MYSQL tuning, troubleshooting, and disk management. I offer a comprehensive repair service and can install and configure a wide range of software on your server, including webservers, IP telephony, and video conferencing tools. I am proficient in cPanel, Plesk, Webmin, and various other control panels. With a deep understanding of various CMS platforms such as Wordpress, Prestashop, Joomla, Bitrix, and Magento 2, I provide efficient debugging and repair services. I also offer a robust monitoring service to ensure optimal performance and security. In addition, I have a solid understanding of networking protocols and services, and I am well-versed in cybersecurity best practices. My commitment to quick response times and high-speed service delivery sets me apart in the field. I am dedicated to providing top-notch solutions tailored to the unique needs of each client. 收起
雇用 sukh0v
-
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
-
Hello, I have 13 years of experience in Information Technology and I have always been working in the cloud, infrastructure and DevOps areas. I've been working with infra as code, automation, docker, kubernetes, terraform, among other technologies, just as I've always been working with databases (Postgres, MySQL,...Hello, I have 13 years of experience in Information Technology and I have always been working in the cloud, infrastructure and DevOps areas. I've been working with infra as code, automation, docker, kubernetes, terraform, among other technologies, just as I've always been working with databases (Postgres, MySQL, mongodb) and the main cloud providers (AWS, Google Cloud, Azure, Digital Ocean). I am available to work immediately. 收起
雇用 pedro002
