Systems and Services Engineer, with 12+ years of working experience. Interested in researching, administrating, debugging, tuning and developing platforms running on UNIX like Operating Systems. Able to troubleshoot, identify and solve problems in software, network or kernel layer. Always willing to learn and experiment new technologies for creating high availliability platforms, that could described as "state of the art" or "cutting edge" technology. Specialties: • Unix Like Operating Systems Specialist (Solaris / Linux ). • TCP/IP Network technology • Very deep level of knowledge on Machines hardware and OS Kernels internals. • Troubleshoot/Tune/Debug; System Services, Operating Systems • Mail Services Expert, Qmail-Ldap Specialist. • Network: Cacti/MRTG, Nagios, Cisco Netflow • Databases: PostgreSQL / MySQL / Oracle / LDAP. • Programming: Perl, Ansi C, bash, awk, sed, php etc • Internet Services: mail, http, radius, ftp, ssh, irc etc.
Samba Job Cost Overview
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Samba oDesk freelancers typically receive a client rating of 4.46.
Technical Skills: Linux Redhat, Fedora Core, CentOS, RHEL ES AS, SLES, SUSE, AIX, VIO, HMC, Solaris, Unix. OpenBsd, Debian. Performance Monitoring and Capacity Planning for AIX and pSeries Servers, Linux and Unix. Firewalls: Port Forwarding & Rules (IPTABLES I IPCHAINS). Domain Controller I Exchange setup in a Linux. Advanced Samba Domain Environments: Samba3 Nt4, Samba4, Samba & Windows Interoperability Load balanced using LDAP replication protocols such as slurpd, syncrepl delta-syncrepl ) Linux Clustering: Load balancing,Samba CTDB, SGE Clustering (Grid Computing) File systems – GFS/GFS2, OCFS, GPFS, VCS, VVR, VXFS, Veritas, Redundancy RAID Configuration. Hardware and Software; Linux RAID over LAN: (DRBD Kernel Package). DRBD/GFS/GPFS/OCFS Primary/Primary Clustering File System SAN multipath, Netapp, EMC, IBM, Hitachi, Dell NAS NFS Filer Configuration on Unix Mail Servers & Protocols: Sendmail, Openchange, Postfix DNS Configuration Maintenance Linux Kernel memory management & Tuning KSM Remote access protocols and authentication methods (NISILDAPIAD) Automation – Unix Reporting & Health Checks (routine operational health checks) Puppet. EMC SAN Equipment installation, configuration, management & maintenance EMC CX3 Series / NS, EMC CX4 Series / NS, EMC VNX Series Management EMC Atmos Systems Configuration and Management (Object Storage) Navisphere / Unisphere Management (Engineering) Bare metal configuration (building vault packs) Conversions EMC CX300/500/CX3 Series to CX4 & Software Updates Utility Partition recovery - Flare recover, reloading the utility partition EMC CX/NS ISCSI/CIFS/NFS/Fibre Configuration EMC CX/NS Disaster recovery skills EMC FAST - Fully automated storage tiering in-depth understanding EMC FAST Cache (Solid State Disks) EMC CX/NS Performance Tuning & Optimization EMC Block Storage / NAS Storage EMC Deduplification and Compression, FAST Investment Banking Systems HFT – High Frequency Trading System Software and Hardware Network Design using Low Latency InfiniBand 10GE and 40GE Mellanox adapters using Cisco Topspin. Infiniband allows best network performance for HFT. Data Center Migration work, migrating HFT platforms systems running on Unix. Tibco EMS – Architecture design, build and management. Queues management, Gems, cluster setup GFS. EMS/GFS Specialist. Primary/Secondary and Primary/Primary Cluster Design. Gloss (Global Settlement System) - builds with Sybase/Sybase IQ. Management and disaster recovery skills such as corrupt transaction log. Control-M Linux server management and client agents E-HR Platforms - Oracle Basic Database Management and Weblogic server. Fidessa – Working closely with development team to provide stable Unix platforms and DR solutions. Vmware ESX Farm Builds and Support - 1.5, 2.x, 3,3.5,4,5 Live migration, snapshots, vSphere, HA. Vmware / EMC CX4/VNX Integration Vmware Disk IO performance monitoring and latency tools Vmware – Exporting performance data to spreahsheets Vmware Patching and Maintenance Vmware Datastores – FC Block Storage, NFS, CIFS, ISCSI, VFS Cluster FS Vmware View – Virtual Desktop Design and Build using Linux/Windows thinclients. Cloud Hosts, Pods, Clusters Design and Implementation Advanced Cloudstack / Cloudplatform builds with KVM/XEN/VMware Hypervisors Leadership with Cloudstack Cloud Platforms development - working with Citrix Directors KVM Hypervisor skills - performance tuning, clustering etc. Cloud architecture: design, builds, deployment and support. SystemZ s390 Linux builds I Power5I6 PPC Pseries Management, LPARS, VIO, NIM, HMC AIX Support, Disk Management, LV’s PV’s VG’s VIO Diagmenu management, smitty Redhat KVM I XEN clustering farms configuration. Live migration SUN Virtual Box / Vmware Server Backup Design & Disaster Recovery Planning 7+ Years working with Disaster Recovery, 10 Major Projects, 20+ Critsits (critical situations) Implementation and Design of Disaster Recovery Systems – created disaster recovery plans and procedures for business critical systems. Design, develop, and document Business Continuity and Disaster Recovery Plan Identifying DR/BCP/Backup issues, raising NCI issues and following through to create new projects to rectify the Non- Compliance Issues. Disaster Recovery/ Business Continuity systems specialist. BCP/DR Project Manager and Unix SME. Coordinate DR/BCP exercises as a account Focal Point every few months as per compliance. Standardization of procedures which could be applied to multiple accounts. Conducted risk assessments as a account Focal Point and identified operational risks, potential Magnitude of impact and guidance for risk mitigation in alignment with continuity directives and regulatory IBM Xseries, HP, Dell servers, SUN, Sparc, Pseries, Other Cisco product lines / OSI Model & Network Topologies
Software Development • .Net (VB, C#, C++, ASP .NET 2). • Delphi. • GUPTA CTD (Centura, SqlWindows). • C/C++. • Power Builder. • Asm. • ML. • PHP. • ADA. • Java, • Java Script. • Jscript • VB Script • JSP. • Fox Pro. • Python. • Perl • SAP SDK • Joomla Data Base • Access. • Dbase. • PostgreSQL. • FireBird. • MS SQLServer. • SyBase. • Oracle. • SqlBase • DB2/AS400 Linux/Unix Experience • RedHat • Debian • Ubuntu • Centos • Suse • FreeBSD Operating System • Windows Server: Active Directory Installation, Group Policy, DHCP, ISA Server, FTP, Exchange, and configuration in Windows Server 2003. • Linux: Provisioning Server, DHCP, FTP, LDAP, MAIL SERVER, SAMBA, etc. • AS400: DB2 Management. Software • Sap Business One • Visual Hur • SIAD • STC • Microsoft Office Suite • Open Office Suite • VM Ware Workstation • Adobe Photo Shop • Virtual Box • SoapUI • Xmind • MindManager Appliance • SAN/NAS Appliances: Openfiler and FreeNAS. • Virtual Machine: VMWare ESX Server and Xen Server. • E-Mail: Zimbra. • Helpdesk: GLPI and OTRS. • File Manager: OpenKM • Business: Openbravo ERP, VTiger CRM, Orange HRM, SpagoBI Business Inteligence, and Time Trex Payroll. • Communication: Elastix. • Web Conference: Open Mettings and Big Blue Button. • Video Camera Security: ZoneMinder. • E-Learning: Moodle, and Atutor. • Survey: LimeSurvey • MiddleWare: Spago. • Process Manager: Intalio. Reporting • Crystal Reports • Fast Reports • Gupta Reports • IReport
My Name is Rodolfo Ramalho, 28 years old, I worked as a IT Support Engineer, graduated in Computer Networks by UNINOVE. I have been living in Dublin for the last six months studying English in the Irish Business School Dublin. My goal is to become fluent in English language in order to meet the demand of the Information Technology sector in this country. I have been worked with IT from over 10 years, with leading companies in Brazil and the World: Itau, Alog, T-Systems, PriceWaterhouseCoopers, Tivit, MCPBrasil, Nortel Networks. I am able to build, manage and motivate teams. Always in search of the best results, fast adaptation to new processes, activities and environments. I have strengths as persistence, determination and commitment. I am Specialist in corporate environments. Implementation, Management and Administration Windows Server and Linux. Thorough knowledge and experience with Active Directory, Exchange, DFS, RRAS, RIS, Cluster, NLB, RDS, Terminal Server, IIS, DNS, DHCP, LCS, WSUS, Fore Front, System Center, Virtual Server, Hyper-V, ISA, TMG and Skill in Deployment GPO. Experience in the best practices of ITIL (Incident, Problem, Change, Release, Configuration, Availability, Capacity, Service Level and Service Desk), ISO 27001 and Project Management. Always working with good personal relationships, promptness and courtesy at all levels, and the propensity to interact consciously and participate within a team. I Participated in complex projects such as Migration Exchange 2003 to 2007. Active Directory 2003 to 2008, IIS 6 to IIS 7, ISA to TMG, Implementation and Management Environment DR (Disaster Recovery). Extensive knowledge in planning and documentation of physical infrastructure and logic.
Hello, I’m working 20 years in IT technology. I have gained a variety of experience in this area, and from the last 15 years as a system engineer full time. I’m team player, hardworking and dedicated to work. My area of work is the design, implementation and maintenance of Linux / Windows and network systems. I learn fast and can adapt very quickly to new technologies. I have a knowledge of Linux administration (Debian/Ubuntu, RedHat/Centos), Windows administration (NT, 2003+), Network setup and administration, Virtualization and Clustering.
More then 10 last years, I administer *nix servers. I have a wide experience in managing and maintenance of such services, as Web-servers, FTP, Mail systems, Databases. I also have a good knowledge of Samba, LDAP, IT infrastructure monitoring systems, backup systems, Amazon Web Services. My core competency lies in creation of reliable and safe systems.
For the past ten years, I have worked as a Sysadmin for government institutions and private companies. I have also worked as a Linux instructor and an IT consultant with topics such as: Firewalls, Web Servers, Virtualization, CMS, Databases and HA. As a Sysadmin I have great experience in the following areas: SQL, CPANEL, hosting providers, DNS, DHCP, LDAP, software security testing/qa, packing for Debian and much more. For me, it would be a very grateful opportunity to work with opensource technology in your business.
Overall 9 years of experience in administering and troubleshooting Servers as well as Network related issues. More than 8 years of experience on Unix/Linux Servers Platform, LAN and WAN network environment. More than 4 years of experience in Web Hosting Industries which Includes Dedicated hosting, Cloud Computing Environment & 3 years of experience HPC Cluster Environment. Technical Key Skills: Installing and Configuring Bind DNS, DjbDns, DHCP, NIS, NFS, Squid, Samba, MAIL with Postfix, Qmail, and Sendmail, Vsftpd, Proftpd, ProxyFTP, POPTOP, OPENVPN, APACHE, LIGHTHTTPD, NGINX, PHP, MYSQL, TOMCAT, LOAD BALANCING, GIT, Jenkins, VPOPMAIL, COURIER-IMAP, SQUIRRELMAIL, SQWEBMAIL, MAIL-SCANNER, SPAMASSASSIN, CLAM-ANTIVIRUS, NAGIOS, BIG BROTHER, GANGALIA, COLLECTL, MRTG, CACTI, MUNIN, TWIKI, AWSTATS, WEBALIZER, on Linux and Unix. Shell scripting in Bash, Python and Perl. Hardware RAID, Software RAID and LVM. Parallel file systems like GlusterFS, Lustre, GFS2, and OCFS2. High Performance Computing [HPC] & Cloud Computing. Operating System: FreeBSD 4.x, 5.x, 6.x, 7.x, 8.x Centos 6.x, 5.x, RHEL 6, Debian, ubuntu, Gentoo, Sun Solaris 8, Red hat Linux 7.1,7.2,8, Fedora core, Windows 2008, Windows 2003, Windows 2000, Windows XP Home & Pro, Windows NT 4.0, Windows (95, 98, ME), and DOS Server Platform: Dell PowerEdge R610, Dell PowerEdge R710 Dell PowerEdge Dell PowerEdge 2950, Dell PowerEdge 1950, Dell PowerEdge 1850, Dell PowerEdge 1435, Dell PowerEdge 1425, Dell Blade Servers M610e, M915 with M1000e, SuperMicro, Blade Server RLX 24 blades, SUN Ultra 5/10, Sparc Station (10, 5) and IBM x200 series server Devices: Mellanox Switch and HCA, Cisco Router 2800, 6500 series, Cisco 2960, 2950, 3550 Switches, Brocade Switches, SCSI Devices, LSI Raid, 3ware, DDN SFA & S2A storage controller and BIG IP F5 Product. SCSA – CX-310-203 (Sun Certified System Administrator) for Solaris 10 OS SCNA – 389 (Sun Certified Network Administration) SCSA – 238 (Sun Certified System Administration-I) SCSA – 288 (Sun Certified System Administration-II) CCNA (Cisco Certified Network Associate) MCSA 2003 (Microsoft Certified Systems Administrator) MCSE 2003 (Microsoft Certified Systems Engineer) MCSE 2000 (Microsoft Certified Systems Engineer) MCP (Microsoft Certified Professional)
More than 8 years of experience with I.T. infrastructure. Experience with Data Centers Infrastructure Experience with Network infrastructures Experience with Enterprise Operating Systems Experience with (principally) Debian, Red Rat and related systems. Wide experience as Sysadmin, Support Analyst and Consultant. Free software enthusiast. Specialties Red Hat, Debian, System Administration, Linux, JBoss, Data Center, I.T. Consulting.
I have been working as a Linux Server Administrator with many servers,doing administration of Linux systems,designing and structuring servers,vps and related issues. I have a relatively previous experience on: -Linux System & Network Administration. -Performing installations and operations of Linux distributions. -Configuring and implementing Web servers (APACHE) and virtual hosting. -Network and web security such as: Vulnerability Assessments, Hardening servers, Penetration testing, web security, fail2ban, SNORT, Tripwire-AID, mod_security, mod_evasive, Denial of Services (DDOS), Firewalls (iptables). -CMS (Joomla) installation, configuration, administration and mysql database related. -Deploying and maintaining Monitoring systems such as: nagios -MySQL database administration. -Resolve hardware and software-related problems, as well as perform system backup and recovery. -Good ability of Installing and configuring Virtualization Xen, OpenVZ. -Ability to compile linux packages from source code. -Bash scripting.