(IT) Linux Systems Administrator

Daniel Clark

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Cell: 330-***-****

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(IT) Linux Systems Administrator

Professional Profile

(IT) Linux Systems Administrator, (IT) Systems Administrator, (IT) Technical Support, (IT) Computer/Server Technician with 19 years of experience in Linux, Unix and Windows. (Bash Shell/Perl minor scripting), workstations administration, Windows servers administration, specializing in Apache, Bind, Sendmail, Spamassasin and Tripwire. Building, troubleshooting, repairing servers and workstations/PC's. Software installation and troubleshooting across all platforms. Backing/archiving client/server configurations daily. Removed viruses from infected workstations, servers and PC's as well as implementing antivirus solutions on all platforms.

Administration

Systems Administration

• Diagnosing and resolving network connectivity problems, incorrectly configured servers, workstations, printers, hardware failures and user errors.

• Built and repaired servers/computer systems to improve speed, reliability, and efficiency of operation as well as successfully troubleshooting OS and third party software.

• Sustained data security, integrity, and recovery by performing daily routine backup operations.

• Performed impromptu security checks of servers and workstations to verify adequate virus protection and compliance with corporate procedures.

• Operated computer help desk to assist users with problems and solutions developing excellent relationships with customers (via phone, e-mail and face to face) by adopting a cooperative attitude and positive approach to every task and assignment (Software, Hardware, E-Mail, Web and TCP/IP Internet issues). Able to resolve issues with difficult clients and customers professionally.

• Set up Ethernet cabling, TCP/IP, Wireless Networking Wi-Fi, Local Area Networks LAN and Dynamic Host Configuration Protocol DHCP.

• Installing, Upgrading Servers, Hardware Installation, Software Installation, Troubleshooting and Problem Solving. Installed and tested new upgraded software releases as needed.

• Remote connection security using SSH certificates as well as security configurations of all servers (windows and linux/unix) was crucial. As well as web security using SSL verification and encryption. Also set up secure certificates as well as secured E-mail transmission using SSH, TLS secure certificates on both Windows and Linux servers using PKI. Monitoring Linux servers security using Tripwire.

• Manually removed viruses from workstations and implementing virus protection using multiple anti-virus applications.

• Successfully debugged problem HTML, Perl and PHP code issues for local web users and business domain web sites.

• Created and edited documentation for installation and training manuals along with detailed documentation on server configurations and problem resolutions in the ticket system knowledge base.

• Server side administration of several top Web site accounts (98.1 WKDD Radio Station, WKYC News (E-Mail) and The Plain Dealer).

• Administered and updated Novel Netware software and its licenses.

• Analyzed competitor products and services.

• Extremely proficient in all Microsoft's Office products (including Infopath) and non-Microsoft Software such as OpenOffice.

Linux Systems Administration

• Installing, configuring and securing CentOS, Ubuntu Desktop/Server, RedHat Fedora some with SCSI RAID array and mirroring storage devices.

• Installed and configured BIND v9.x.x and v8.x.x for Domain Name Services (DNS) in a production environment for 250+ domains on primary and secondary/slave servers. Creating and administering zone files, forward and reverse DNS for mail servers, making sure secondary/slave DNS zones are transferred and resolving correctly for web, Internet and LAN name resolution.

• Installed, configured and secured Apache v2.x & Apache Tomcat (for Web services). Administered Apache on Unix (Sun Solaris). Generated SSL certificates for HTTPS business domain clients for e-commerce transactions. Set up numerous business web hosting domain clients with special requirements with different configurations as needed.

• Installed, configured and secured Send mail v8.x.x (for E-Mail). Created SPF records, set up forward and reverse DNS for business domains, Configured SSL certificates & TLS for mail connections, Set up Spamassasin and created filters to fight spam incoming & outgoing server side and managed a black list of known open mail relay servers. Configured IMAP and POP3 services.

• Installed, configured and or administered other software in Linux: iptables, Radius, Tripwire, MySQL, Spamassasin, Encrypted FTP transfers (FTPD & VSFTPD), SquirrelMail, cPanel, WordPress and MRTG.

• Downloaded and compiled source code for software and drivers in order to resolve issues on latest technology hardware not fully supported by certain Linux distributions at that time.

• Created and deleted user accounts modifying permissions as necessary.for specific access to services. Wrote MINOR Bash scripts to facilitate administration tasks in Linux.

• Managed remote Linux servers remotely via SSH.

Microsoft Administration

• Installed, configured and administered Windows NT, Windows Server 2000, Windows Small Business Server 2003 (R2) and Windows Server 2008 some with SCSI RAID array and mirroring storage devices.

• Installed, configured and administered Windows 10 (Home & Pro), Windows 8 (Pro), Windows 7 (Home & Ultimate), Windows Vista (Home & Ultimate), XP (Home, Pro & 64-bit), ME, 98 (SE), Windows NT WS (4.0), 95 (SR2.5) and Windows 3.1 (Workgroups) for personal computer and workstation use. Manually patched and updated when needed or new updates came out as well as used SUS (now known as WSUS).

• Administered Microsoft's ISA 2003 server Firewall and Web Proxy, Microsoft's Team Services, Front Page 2002 server extensions, Share Point services, Microsoft IIS Service, Microsoft DNS services, Microsoft Exchange 2003 SBS and third party FTP services under Windows.

• Created, deleted and modified users & permissions Used a very limited command line under Windows NT, Windows server 2000 and Windows Server 2003 before PowerShell came into existence.

• Managed remote Windows servers remotely via PCAnywhere, Terminal Services and Remote Desktop Services (RDS).

• Managed Microsoft Licenses for PC/Workstation OS's, Server OS's and third party software.

Employment History

Doylestown Communications, Ohio.Net // Doylestown, Ohio

(IT) Systems Administrator // 3/ 1998 - 10/ 2010

(IT) Consulting // Barberton, Ohio

(IT) Technical Support (IT) Computer Technician // 1/ 2011 - Present

Education and Vocational Skills

H.S. Diploma, 1990

Garfield High School, Akron, Ohio

2 Year Vocational: Data Processing & Data Entry

Volunteer Work

Summit County Animal Control, Ohio

Volunteer, 9/ 2014 - Present

Clean dog cages and surrounding areas to have a clean presentation for visitors who may be possible adoptees. Walk dogs on a leash which helps break the cycle of being caged up 23 hours a day but more important than that is to work with troubled, shy and timid dogs who are more likely to be passed over for adoption.

Humane Society of Summit County, Ohio

Volunteer, 4/ 2011 - 10/ 2011

Cleaned cages and walked dogs. Humane Society of Summit County had many volunteers and still is a NO KILL SHELTER so the need to walk and work with animals was well taken care of by many.

Keywords and Other Software/services I Am Famaliar With:

Linux Administrator,Systems Administrator,Technical Support,Computer/Server Technician,Windows Servers,Networking,MS Windows Office Products,Unix Administration,Linux,Server/OS/Hardware/Software/Client Software Installation and Problem Solving,Perl,Exchange,Active Directory,WordPress,Apache Tomcat,Tripwire,Bind,iptables,Apache Web Server,Antivirus,Sendmail,MySQL,Spamassasin,Microsoft,IIS service,Microsoft DNS service,Domain Management,PKI,CentOS,RedHat,Fedora,Ubuntu,FTP / Site Setup,VSFTPD,FTPD,Bash,PHP,Perl,Secure shell,TCP/IP,DHCP,SSL,TLS,Snort,Web hosting,SFTP,LAN,SCP,Debian linux,IIS,ISA,SquirrelMail,cPanel,MsSQL,Linux,DNS,Unix,SNMP,MRTG,Shell Scripting,Shell,Microsoft Windows,DOS,Technical problem solving,Computer Troubleshooting,Computer Repair,Computer Assembly,Computer Diagnostics and Repair,Technical Support,Computer Hardware Installation,Help Desk,SMTP,vi,Unix commands,Command-line interface,Command Prompt,Linux commands,IMAP,POP3,Wireshark,Wireless Networking,Wi-Fi,Snort,ISA,Ethernet,Web hosting,E-Mail,Vmware,Terminal Services,PCAnywhere,CuteFTP,PuTTY,SuperPutty,PuTTY Tray,KiTTY,VirtualBox,Advanced IP Scanner,WirelessNetView,Wireless Network Watcher,DNSDataView,Microsoft Network Monitor,Microsoft Network Diagnostic Tool,TrueCrypt,Workorder Ticket,Vim,PSPad,TextPad,KDE,Gnome,FileZilla,WinSCP,ClamAV,Symantec,Pegasus,OWA,Outlook Express,Word,Infopath,Onenote,Excel,PowerPoint,Publisher,Access,Edge,Internet explorer,Firefox,Chrome,Opera,SCSI,RAID,Netgear,Linksys,D-Link,Belkin,UPS,APC,RDP,Terminal Services

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