Network Administrators do zatrudnienia
Wyświetlono 172 wyników
Wykonawcy sponsorowani
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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: debian,ubuntu,gentoo,suse,redhat,centos 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 mniej
Zatrudnij servermaster
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IT, Network, Networkadministration, Firewall, UCC, Hosted PBX, 3CX, VoIP, Webhosting, Wordpress, Website-Administration,IT, Network, Networkadministration, Firewall, UCC, Hosted PBX, 3CX, VoIP, Webhosting, Wordpress, Website-Administration, mniej
Zatrudnij michihochuli
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I am offering a variety of services based on that the experience and the know-how I have acquired through out my career, and the network of professionals in many domains worked within. ✤ Cloud Compute: ~ Migrate workload and solutions (on-premise to cloud | cloud Provider to another). ~ Design and deploy solution...I am offering a variety of services based on that the experience and the know-how I have acquired through out my career, and the network of professionals in many domains worked within. ✤ Cloud Compute: ~ Migrate workload and solutions (on-premise to cloud | cloud Provider to another). ~ Design and deploy solution architecture to fit priorities (performance | budget | resilience). ~ Containerize solutions and transform solutions from system based to Kubernetes. ~ AWS Solution deployments (EC2 | Lightsail | Beanstalk | EKS | ECS | Serverless ) ~ AWS Services (IAM | Cognito | SES | SNS | Lambda | S3 | EFS | RDS | DynamoDB) ✤ Cloud Solutions ~ CMS Solutions (Joomla | Wordpress | Grav | Drupal) ~ Web development frameworks (PHP | python | Nodejs ) ~ Database: MySQL/MariaDb, Postgres, Yugabytedb, NoSQL (CouchDB | DynamoDB) ~ Idp deployment and configuration (AWS Cognito | Keycloak | Social Providers) ~ Web service & reverse proxy ( Apache | Nginx | Caddy | Traefik) ~ Microsoft 365 migrations (Tenant to Tenant, Exchange to M365). ✤ CI/CD ~ Infrastructure as Code (Terraform | AWS Cloudformation) ~ Frameworks (ArgoCD | Jenkins | GitHub | GitLab) ~ Cloud Management (Rancher | EKS | GKE | Kubernetes) ✤ Systems & Network Solutions: ~ Deploy & manage windows based networks (AD, DNS, DHCP, SharePoint, WSUS, System Center). ~ Deploy & manage linux solutions (FreeIPA, Bind, Unbound). ~ VPN Services (OpenVPN, Wireguard) ✤ web development stack ~ PHP (CorePHP | Laravel) ~ Python (Python | Django ) ~ Javascript ( Nodejs | Vue | Angular ) ✤ Business Systems Implementations ~ ERP (MIcrosoft Dynamics F&P, CRM, BSC) ~ PMS (Oracle Hospitality Opera / Opera Cloud) ~ POS (Oracle Hospitality Simphony / Simphony Cloud) I make myself available for discussions, clarifications, and give an opinion ! mniej
Zatrudnij samermassoud
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IT Expert with +9 years of experience in Managing Windows and Linux-based server infrastructures, Network security & Administration, software solutions. Here are some major services on which I am working: ☑️- Server Administration : ✔️ Windows server : ADDC, DNS, DHCP, WSUS, Group Policy Management, RDP Server,...IT Expert with +9 years of experience in Managing Windows and Linux-based server infrastructures, Network security & Administration, software solutions. Here are some major services on which I am working: ☑️- Server Administration : ✔️ Windows server : ADDC, DNS, DHCP, WSUS, Group Policy Management, RDP Server, WDS Server, IIS Server, MS Exchange Server, MS SharePoint, MS Office 365, MS One Drive, MS Teams, File Server (NAS & SAN) , FTP, NTP and many more ✔️ Linux Server : SAMBA ADDC LDAP, SAMBA File Server, DNS, DHCP, Mail Servers (Zimbra, PMTA, Send grid, Squirrel mail, Roundcube). Web Servers (Tomcat, apache, nginx, light speed), MySQL, MariaDB, Postgress, FTP, NTP, Ticketing tools (Manage engine, OS ticket, OTRS Ticket, Citrix XenApp, JIRA, Service now), Monitoring Tools ( Check_mk, Syslog, Nagios, Cacti, ELK Stack, Zabix, xymon, PRTG), IDS Server ( OSSEC, WAZUH, SNORT, Suricata, BRO, Tripwire, Security Onion), DLP/Encryption/ Threat Prevention Server ( Symantec, Sophos, McAfee), Threat Intelligence server (MISP, Mitre, OpenCTI), The Hive with Cortex, ArcSight Server, Dialer Server ( VCdialer, go auto dialer, ViciBox, Altitude Dialer), Virtaul Hypervisor ( VMware ESXi, Proxomox, Virtual Box, VMware Workstation), GenieACS TR-069 remote management server, Vulnerability Assessment Scanner Tools (OpenVAS, Nessus Professional, Wireshark, Comodo cWatch, Tripwire IP360) , SonarQube Code analysis Tool, NXfilter URL Filtering tool and Many More.. ☑️- Network Administration: Key Network Skills & Security Products Experience: o Firewall – Checkpoint, Cisco ASA, Palo Alto, Fortigate, Sophos, o Router & Switches : Cisco, Mikrotik, Ubiquiti, Netgear, Aruba o Intrusion Detection & prevention – Cisco, Checkpoint, Sophos o Switching: Vlan, Inter Vlan, Stp, Vtp, EtherChannel, Switch Port o Configuration and troubleshooting of routing protocols OSPF, RIP, EIGRP, BGP o Setup of security implementations (Filtering Tool ACL, route map, port security.) o Well versed in the operations, configuring, and troubleshooting of various issues in Checkpoint and Cisco, Mikrotik, Ubiquiti, Netgear & Aruba Devices. o Checkpoint IPSec VPN Blade, Application & URL filtering Blade, IPS Blades, o Configuration & troubleshooting of IPSEC and S2S VPN ☑️- Information Security I helps organizations stay compliant with all the important standards like PCI DSS, HIPPA, ISO 27001, GDPR, FISMA, and GLBA. In addition to these compliances, I also help companies with Information Security Assessments and Penetration & Vulnerability Testing for identifying loopholes in their security infrastructure and BCP/DR consulting for building programs to stay ahead of future security incidents. ☑️- Cloud Solutions: I Helps organizations to deploy their services on AWS, GCP, and Microsoft Azure cloud. ☑️- Website Development & Designing : I helps organizations in website designing, development, internet marketing, hosting and support services, as well as web and mobile app development. mniej
Zatrudnij razzeshsingh
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Top 1% in the Freelancer.com Community. I am excited to offer 14 years of solid experience in Physical & Virtual Server & Networking Platforms, System Administration, Network Administration,Managing Telecommunications Networks and Technical Strategy. Below are a few of my strong assets for your...Top 1% in the Freelancer.com Community. I am excited to offer 14 years of solid experience in Physical & Virtual Server & Networking Platforms, System Administration, Network Administration,Managing Telecommunications Networks and Technical Strategy. Below are a few of my strong assets for your business: - Microsoft(Active Directory, DNS,DHCP, RDS,SQL Server(DB Admin),SharePoint, - Hyper-V, Exchange(All Versions &O365)Azure) - VMWare (ESXi, VCenter) - Citrix (XenApp, XenCenter) - Antivirus(Symantec(SEP),Mcafee(EPO),Kaspersky) - Linux (Ubuntu, CentOS,Debian) - Cloud(MS Azure,AMAZON AWS ,Google GCP,OVH and Digital Ocean) - Storage(Synology,QNAP,FreeNAS,WD,Dell and HP) - VOIP ( Avaya,3CX,Yeastar,XCally,GrandStream & FreePBX) - Firewalls (Fortinet, Sonicwall, Sophos, ASA,WatchGuard&PFSense) - Wireless(Cisco,Unify,Grandstream,Fortigate) - Routers (Cisco, Ubiquiti) - Servers (HP Proliant Servers) & (Dell/EMC Servers) I am happily available anytime using secure remote support or walk you through the steps via Freelancer chat .I am looking to show each client my worth to build a long relationship. Get started by clicking on "Hire Me" mniej
Zatrudnij RafimKs
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I have 5 years of experience deploying and maintaining the following: ✅ 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,...I have 5 years of experience deploying and maintaining the following: ✅ 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: PLESK, cPanel, CyberPanel ✅24 hours availability ✅Unlimited revisions ✅Fast response Microsoft® Certified ** MCSA | MCSE | MCT ** mniej
Zatrudnij AZTURK1
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I'm a network and security engineer, Certified CCNA R&S, CCNP Enterprise Core, JNCIA Junos, NSE4 (Fortigate), F5-CA(101-201), F5-CTS LTM, PCNSE (Paloalto), HCIA Big data and cloud. I can help you : - Design/implement medium and large scale enterprise networks using packet tracer, GNS3 or EVE-NG. - Configure Cisco...I'm a network and security engineer, Certified CCNA R&S, CCNP Enterprise Core, JNCIA Junos, NSE4 (Fortigate), F5-CA(101-201), F5-CTS LTM, PCNSE (Paloalto), HCIA Big data and cloud. I can help you : - Design/implement medium and large scale enterprise networks using packet tracer, GNS3 or EVE-NG. - Configure Cisco Routers and Switches - Configure Cisco Firewalls , Fortigate and Palo Alto. - VMWare workstation & VirtualBox Expert. - Routing protocols (RIP, OSPF, EIGRP, BGP) - Configuration and troubleshooting Expert and Switching Expert (VLANs, STP, RSTP, MST, PVST, VTP, ETHERCHANNEL, LACP, PAGP, VPC...). - VPN Configuration Expert. - Linux & windows server Expert. - Elasticsearch Cluster - Configure HAPROXY, Active directory, DNS, DHCP, AD CS,...) - Wireshark Traffic Capture & Analysis Expert. - Microsoft Visio mniej
Zatrudnij Ismaileng
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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 mniej
Zatrudnij rifat0103
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I have been working as a System Engineer for more than 10 years with a strong base in system and networking especially in Active Directory/Exchange multi sites as well as building tons of scripts for automation.I have been working as a System Engineer for more than 10 years with a strong base in system and networking especially in Active Directory/Exchange multi sites as well as building tons of scripts for automation. mniej
Zatrudnij kzb
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Programmer, analyst, IT specialist Over 20 years of technology experience. Focus areas: AI/ML, systems and network administration, Linux system administration, virtualization, DevOps, programming, logistics. Work experience includes telecommunications, research, telemedicine, IaaS and other areas. Feel free to ask...Programmer, analyst, IT specialist Over 20 years of technology experience. Focus areas: AI/ML, systems and network administration, Linux system administration, virtualization, DevOps, programming, logistics. Work experience includes telecommunications, research, telemedicine, IaaS and other areas. Feel free to ask me for my LinkedIn page and full resume. Native proficiency in English and Russian. I am in my 50's. Spent the first 18 was spent in the Empire that is no more that used to be called the USSR where I lived in what is now Russia and Ukraine. The rest of it I spent primarily in the US. I also like dogs, art, literature and nature. mniej
Zatrudnij borepstein
