Network Administrators Για Πρόσληψη
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Προβολή 141 αποτελεσμάτων
Χορηγημένοι Freelancer
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Modular Solutions® Modular Solutions has a track record of 100 percent, all 5 stars and a go-to firm for harnessing the latest advancements in engineering and development to propel your business forward. We're a team of passionate professionals with a proven track record, consistently earning over 100 ecstatic...Modular Solutions® Modular Solutions has a track record of 100 percent, all 5 stars and a go-to firm for harnessing the latest advancements in engineering and development to propel your business forward. We're a team of passionate professionals with a proven track record, consistently earning over 100 ecstatic 5-star reviews from satisfied clients. Our expertise lies in: Data Analysis: Utilizing industry-leading tools like SPSS, R, Hadoop, and Spark, we extract actionable insights from complex data sets, empowering data-driven decision-making. Software Development: We wield a diverse arsenal of programming languages (Python, Java, C++, etc.) to craft custom software solutions that streamline workflows and meet your specific needs. Engineering Services: Our expertise spans across electrical, mechanical, civil, and software engineering, leveraging industry-standard software like AutoCAD, SolidWorks, and ANSYS to deliver precise and efficient solutions. Machine Learning & AI: We stay at the forefront of technological advancements, integrating machine learning and artificial intelligence into your projects to automate tasks and optimize processes. Development: best on any freelance websites, freelancer platform we offer developers software, hire freelancers from laravel developers to wordpress website developer or freelance digital marketing. Collaboration is paramount. We work closely with you, prioritizing transparency throughout the project lifecycle to ensure your vision becomes reality. Let Modular Solutions be your trusted partner in innovation. By leveraging our expertise in big data, automation, and cutting-edge technologies, we'll craft solutions that unlock your business potential and drive tangible results. Ready to join the ranks of our 100+ satisfied clients? Contact us for a free session today to discuss your project and see how Modular Solutions can help you achieve your goals. λιγότερα
Πρόσλαβε τον/την umg536
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A System and Network Engineer with Virtualization expertise is responsible for designing, implementing, and maintaining IT infrastructure, including networks, servers, and virtualized environments. They ensure efficient system performance, security, and network connectivity. With certifications such as CompTIA...A System and Network Engineer with Virtualization expertise is responsible for designing, implementing, and maintaining IT infrastructure, including networks, servers, and virtualized environments. They ensure efficient system performance, security, and network connectivity. With certifications such as CompTIA Network+, Cisco CCNA, VMware VCP, or Microsoft Certified Solutions Expert (MCSE), they demonstrate proficiency in network management, troubleshooting, and virtualization technologies, enabling optimized and scalable IT solutions for organizations. λιγότερα
Πρόσλαβε τον/την gara123
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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 2024, 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 2024, 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 ** λιγότερα
Πρόσλαβε τον/την AZTURK1
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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 <b> HPE (Hewlett Packard Enterprise) </b>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. λιγότερα
Πρόσλαβε τον/την rupa37
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With over a decade of specialized experience in IT security, I bring distinguished expertise in managing firewalls, routers, and network security. Adept at leveraging advanced tools and methodologies to perform thorough vulnerability assessments and devising robust remediation strategies to fortify security in Windows...With over a decade of specialized experience in IT security, I bring distinguished expertise in managing firewalls, routers, and network security. Adept at leveraging advanced tools and methodologies to perform thorough vulnerability assessments and devising robust remediation strategies to fortify security in Windows and Linux ecosystems. My comprehensive knowledge extends to Sophos XG/UTM and a variety of other Sophos products, ensuring robust and adaptive security solutions. I am an expert in Ubiquiti firewalls and switches, implementing and managing these devices to create secure and efficient network infrastructures. Additionally, I have extensive experience in monitoring systems such as Zabbix, Nagios, and PRTG for private cloud environments, enabling proactive monitoring and swift response to any potential issues. My proficiency extends to Proxmox server configuration, ensuring seamless virtualized server management and high availability. I am well-versed in configuring Windows server roles such as Network Policy Server (NPS) and Remote Desktop Protocol (RDP) with Multi-Factor Authentication (MFA), enhancing security and access control measures. Moreover, I have a proven track record in creating excellent physical and logical network diagrams, facilitating clear communication and efficient planning. I am also an expert in vulnerability assessment tools like Nessus and Qualys, allowing for thorough security evaluations and the implementation of effective remediation strategies. I have experience with security cameras from Hikvision, Dahua, and Axis, and I am skilled with all types of NVRs, DVRs, and XDRs. Additionally, I am an expert in RTSP protocol for live feeds over the internet via router port forwarding. I have experience in Omada controller (Tp-Link). I have experience with the installation and configuration of Moodle on Windows servers. λιγότερα
Πρόσλαβε τον/την G8Bharat
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|==> Jack of all trade!! <==| Areas Of Expertise: IT Security Audit - ISO 27001:2022, PCI DSS, NIST 800-53, GDPR and several other IT Security Compliance. IT Security and VAPT - Backtrack, Kali Linux, Nmap, Wireshark, Metasploit, Nikto, Burp Suite, OpenVAS, Aircrack-ng, and several other security penetration...|==> Jack of all trade!! <==| Areas Of Expertise: IT Security Audit - ISO 27001:2022, PCI DSS, NIST 800-53, GDPR and several other IT Security Compliance. IT Security and VAPT - Backtrack, Kali Linux, Nmap, Wireshark, Metasploit, Nikto, Burp Suite, OpenVAS, Aircrack-ng, and several other security penetration tools System Administration - VMWare vSphere, vCenter, ESXi (5.x, 6.x, 7.x, 8.x) Redhat Linux Enterprise Linux (5.5, 6, 6.5, 7, 8), CentOS, Ubuntu, Kali/Backtrack,. Windows Server (2019, 2016, 2012), Windows Hypervisor, SCVMM (System Center Virtual Machine Manager), SCCM (system center configuration manager), SCOM (System Center Operations Manager), VMware Networking - Routing, Switching, Cisco Firewalls, router and switches, Packet tracer, Riverbed Opnet Modeler, GNS3 IT Security - Backtrack, Kali Linux, Nmap, Wireshark, Metasploit, Nikto, Burp Suite, OpenVAS, Aircrack-ng, and several other security penetration tools Digital Forensics - Autopsy, EnCase, FTK, Axiom Web Designing - html, css, javascript, xml Web Programming - php, asp, ajax, jsp Database - MySQL, Oracle Writing - Technical Writing, Technical documentation, E-book, Content, Report, Creative writing λιγότερα
Πρόσλαβε τον/την rozeny2k
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With over 10 years of experience in cybersecurity, I specialize in protecting businesses and individuals from cyber threats. I've worked across industries such as finance, healthcare, and retail, helping clients secure their digital infrastructure with tailored solutions. What I Can Do for You: Web Application...With over 10 years of experience in cybersecurity, I specialize in protecting businesses and individuals from cyber threats. I've worked across industries such as finance, healthcare, and retail, helping clients secure their digital infrastructure with tailored solutions. What I Can Do for You: Web Application Penetration Testing I uncover vulnerabilities like SQL injection, cross-site scripting (XSS), and authentication flaws, ensuring your web applications are secure from attacks. Network Security Assessments I assess your network infrastructure, identifying weaknesses in firewalls, routers, and internal systems to prevent unauthorized access and data breaches. Cloud Security Audits I review your cloud setup to ensure proper configurations, access control, and encryption, keeping sensitive data secure. API Security Testing I help secure your APIs by identifying vulnerabilities like broken authentication, authorization flaws, and data exposure. Mobile Application Security Testing I analyze your mobile apps for security issues, such as insecure data storage and weak encryption, ensuring a safe experience for your users. Forensics & Malware Analysis I investigate suspicious activity and malware across networks, PCs, and mobile devices. My forensic analysis helps track and eliminate threats while providing insights into how the attack occurred and how to prevent future breaches. Vulnerability Scanning & Reporting I provide thorough vulnerability scans and deliver detailed reports with prioritized recommendations, helping you fix issues efficiently. Security Hardening I implement best practices in secure coding, encryption, and multi-factor authentication to protect your systems from future attacks. Compliance & Risk Assessments I ensure your business meets industry compliance standards, such as GDPR, HIPAA, and PCI DSS, while improving your overall security posture. Why Clients Choose Me: Proven Expertise With over 10 years of experience, I’ve secured businesses of all sizes and industries, delivering real results that prevent cyberattacks and strengthen defenses. Tailored Solutions Every business has unique security needs, and I customize my services to fit your specific requirements, ensuring the best protection. Actionable Reporting I don’t just identify risks—I provide easy-to-understand, actionable recommendations so you can address vulnerabilities immediately. Ongoing Support I offer continuous support and guidance, helping you stay ahead of evolving threats and ensuring your security remains strong. Let’s Work Together: Whether you need penetration testing, forensic investigation, malware analysis, or ongoing security assessments, I’m here to help. Let’s discuss how I can provide tailored security solutions to protect your business from cyber threats. λιγότερα
Πρόσλαβε τον/την ahad47
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---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- "I DON'T USE ANY OTHER MEANS OF CONTACT, ONLY FREELANCER...---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- "I DON'T USE ANY OTHER MEANS OF CONTACT, ONLY FREELANCER CHAT!” ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Freelancer, having 10+ years of experience as a Linux/Windows System Administrator, Devops and Cloud Engineer. I am well experienced in System Administration, so including but not limited to: Mail Server: Zimbra, postfix, sendmail, PowerMTA Web Server: Apache, Tomcat, Nginx Scripting: shell scripting Control Panel: Plesk, WHM, Cpanel, Webmin, Virtualmin Virtualization: KVM, VMware, Citrix Xen Server, VMware Esxi, Proxmox, Advanced KVM command-line Security Compliance: PCI-DSS, DISA STIGs. Devops Tools: Docker, Docker-compose, Jenkins, GitHub,Vagrant, Vagrant with Docker as provider , Ansible, Foreman, Docker Swarm Network: Router configuration of cisco router, modem. IP subnetting. Database: Mysql, Postgresql, Oracle, MS-SQL Accounting: Tally 6.3, Tally ERP 9 on Linux Operating System: Debian-{8,9,10}, Centos-{3,4,5,6,7}, Ubuntu-{12,14,16,18,20.04,22.04}, Windows server -{2003, 2008, 2012, 2016, 2019,2022} Private cloud: Eucalyptus (Ubuntu Enterprise cloud), OpenNebula Cloud: AWS, Gcloud, Azure create VPC, public-private subnet, route table, Internet gateway, network acl, amazon ec2 instance Migration, updation. ERP: ERPnext Multitenant, ERPnext in Google Cloud K8s cluster with CEPH storage Log Server: Solarwind Kiwi syslog Domain Server: Windows AD, Samba4 Server provisioning and PXE installation for Linux and Windows. Source code Compilation and Cross compilation for various architecture. Server Administration, Webhosting, Web migration, Web and DB performance tuning, SSL Certificate Installation, Shell scripting, Deployment of various software and server, Mail server etc. Postgresql cluster, high availability, Load balancing. Master-master Replication. GlusterFS Replication and Geo-replication. Linux Distros: Kiosk live image. FFMPEG, v4l2loopback, Proxy: Haproxy MongoDB Replicaset on multi-node docker container. λιγότερα
Πρόσλαβε τον/την android2014213
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I am an expert network and security administrator and I have 10 year’s practical working and teaching experience in network and security also i am en expert in data entry jobs and excel Microsoft office. I am a CCNA instructor and I have CCNA, RHCE, RHCSA certifications. I have expertise in CISCO routing and...I am an expert network and security administrator and I have 10 year’s practical working and teaching experience in network and security also i am en expert in data entry jobs and excel Microsoft office. I am a CCNA instructor and I have CCNA, RHCE, RHCSA certifications. I have expertise in CISCO routing and switching, firewall, IPS, ISE, voice and wireless solution from my 10 years’ practical experience. I have also fluency in English and Hindi speaking. I am Expert in GNS3 and Packet Tracer. ===================================================================================== Technical Skills: Good understanding and knowledge of TCP/IP, OSI Layer. L3 technologies: RIP, EIGRP and OSPF and BGP in CISCO 800, 1900, 2900, 2800, 2800, ISR 4300, 4100, ASR 1000 series. L2 technologies: VLAN, VTP, STP, Trunking, HSRP, VRRP, SPAN, RSPAN, DHCP Snooping, Dynamic ARP Inspection, ARP ACL etc in 2900 series and L3 switches. NXOS and ACI: Configure and install CISCO nexus 9k and CISCO ACI solution like Bridge Domain, VRF, end point group tenant etc. Cisco ASA and Next Generation Firewall: ACL, NAT, Transparent Mode, Multiple context and Failover (Active/Active, Active/Standby) Site-to-Site VPN, Remote Access VPN and SSL VPN. Cisco Firepower IPS and Firepower Management Center (FMC): ACL, NAT, Intrusion policy, AVC, Malware & File Policy, Site-to-Site VPN, Remote Access VPN and SSL VPN etc. F5 Load Balancer and ASM: Installation and configure F5 BIG-IP Local Traffic Manager (LTM) load balancer and Application security manager. CISCO CUCM: Install and configure Cisco Unified Communication Manager 9.0 and 12.4. Mikrotik Router: OSPF, BGP, NAT, DHCP, L2TP, IPSEC, PPP, Firewall etc CISCO WEB and Email Security Appliance: Install and configure CISCO ESA and WSA So you are requested to first discuss the project and requirements and after being satisfied please awarded me with the work. And definitely work will be delivered in time and in best quality. Thanking You Kazi λιγότερα
Πρόσλαβε τον/την rifat0103
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With over 5 years of hands-on experience, we are a seasoned full-stack development team, verified by Freelancer.com. Leveraging a diverse team of certified experts proficient in nearly every IT skill imaginable, we offer a wide range of IT solutions to cater to all your digital needs. Web Development: Experts in...With over 5 years of hands-on experience, we are a seasoned full-stack development team, verified by Freelancer.com. Leveraging a diverse team of certified experts proficient in nearly every IT skill imaginable, we offer a wide range of IT solutions to cater to all your digital needs. Web Development: Experts in HTML, CSS, WordPress, WIX, PHP, JavaScript (MEAN+MERN), React.js, Angular, and more. We excel in CMS, RESTful APIs, and cloud technologies. Mobile App Development: Proficient in Flutter, Android (Kotlin/Java), and iOS (Swift/Swift UI/Obj-C). We handle NFC, geolocation, and payment integration with ease. Database Development: Skilled in both SQL (Teradata, Oracle, MSSQL, MySQL) and NoSQL (MongoDB, Cassandra, Hive). We utilize Metabases for powerful insights. -Desktop Programming: Versed in Java, Swift, JavaScript, Python, C#, and more for desktop solutions. Blockchain: Our forte includes crypto exchanges, Dapp development, and ICOs on Ethereum, Solana, Polygon, and more. Cloud & DevOps: We manage AWS, Azure, Google Cloud, and employ DevOps tools for seamless deployments. AI & Machine Learning: Experts in Computer Vision, OCR, Machine Learning, and more, leveraging Google Cloud Platform, OpenCV, TensorFlow, and AI architectures. Game Development: We create captivating games using WebGL, HTML5, Unity3D, 3ds Max, and Unreal Engine. E-commerce: Crafting E-commerce Websites, mastering WordPress WooCommerce, and streamlining payment integration. Telephony: Proficient with Twilio, VoIP, SIP, Asterisk, FreePbx, and Free Switch for call center solutions. Trading Solutions: We excel in Sierra Chart, Pine Script, Thinkorswim, and various trading APIs. Hardware & Electronics: Skilled in Arduino, Raspberry Pi, and ESP32, with expertise in PLC and SCADA systems for automation and control solutions. λιγότερα
Πρόσλαβε τον/την rashidamjad
