Security Freelancers

Showing 44 freelancers

Security Freelancers

Showing 44 freelancers

  • Systems Administrator

    Software: Linux – Practical experience. Started to study Linux kerne from Gentoo. I've worked at different tasks from simple to complex. Write different articles, technical documentation, video lessons for Gentoo Linux. MS Windows 9x/NT/2k/XP/2k3 – Small experience … more

    Software: Linux – Practical experience. Started to study Linux kerne from Gentoo. I've worked at different tasks from simple to complex. Write different articles, technical documentation, video lessons for Gentoo Linux. MS Windows 9x/NT/2k/XP/2k3 – Small experience with servers. Wrote different programs. FreeBSD/OpenBSD/MacOS – Have good experience Used: Control panels (WHM/cPanel, Plesk, DirectAdmin, Webmin, ISPConfig etc.) Monitorig (Cacti, Nagious, Zabbix, logwatch, logsentry etc.) Virtual Private Networks (OpenVPN, PPTP) Backup systes (rsync, duplicity, amanda) Database management systems (Oracle, Sybase, MySQL, MSSQL Server etc.) Firewalls (iptables, ipchains, ipfw) Proxy servers (squid+squint+sqstat+rejik) File sharing (Samba, NFS etc.) Webservers (Apache, LightHTTPD, nginx, Tomcat) FTP server (vsftpd, proftpd, wu-ftpd) Security: Wrote articles, and started to study security of web-applications. Love to study computer-programs vulnerabilities. Studied PHP/ASP/Perl source injection, SQL injection, XSS (Cross Site Scripting), HTTP Response Splitting (beginner level). Wrote some articles. Computer languages: Programmed different scripts/utilities in C/C++, Bash, Delphi, C#, Java/JSP/JavaScript, PHP, SQL Worked with: Apache, Backup, Bash, BIND, Cacti, CentOS, cPanel, CSF, Debian, DirectAdmin, Enterprise, Exim, Fedora, FreeBSD, Gentoo, GPG, iptables, Jail, Java, JDK, LAMP, Liferay, Linux, logwatch, Monitoring, MySQL, mysqldump, nginx, OpenBSD, OpenSSH, OpenSSL, OpenVPN, Performance, phpMyAdmin, Plesk, PostgreSQL, Production, ProFTPd, PureFTPd, rkhunter, rsync, Samba, screen, Security, Server, SNMP, snmpd, Squid, sshfs, stunnel, sysctl, Tomcat, Ubuntu, VirtualBox, VMware, VMWare, VNC, VPN, VPS, vsFTPd, Webmin, wget, Zabbix, zyxBackup  less

    virtualization security 00 more less
    • $3.33 HOURLY RATE
    • 4.8
    • 210 HOURS
    • MOLDOVA
    • LAST ACTIVE
    • 4 PORTFOLIO ITEMS
    • 9 TESTS
  • PeopleSoft Security Consultant/Project Manager/Proofread/Web Research

    I have handled PeopleSoft Security and PS admin for more than three years. My skills and experiences include Microsoft Office, UNIX, Oracle Database and MS-SQL. I have been with a huge I.T. company, and on the Peoplesoft support team … more

    I have handled PeopleSoft Security and PS admin for more than three years. My skills and experiences include Microsoft Office, UNIX, Oracle Database and MS-SQL. I have been with a huge I.T. company, and on the Peoplesoft support team for more than three years. This has helped me develop the skills mentioned above. I also have been doing proofreading, editing, web research, email handling, data entry and project management since 2011. I also have experience with technical writing. I am seeking opportunities where my experiences and skills can be utilized to improve customer satisfaction.  less

    security microsoft-word microsoft-excel sql unix-shell microsoft-powerpoint technical-writing content-writing 00 more less
    • $7.22 HOURLY RATE
    • 4.6
    • 3316 HOURS
    • PHILIPPINES
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 7 TESTS
  • Linux Server Administrator / Cloud Computing

    I have more than 8 years experience in linux. I'm already RHCSS RHCE knowledge level. I had been work as IT support engineer and vice manager for ONE year before starting my master degree. I was supporting Winserver 2008 … more

    I have more than 8 years experience in linux. I'm already RHCSS RHCE knowledge level. I had been work as IT support engineer and vice manager for ONE year before starting my master degree. I was supporting Winserver 2008 and linux servers I was tutor in University in computer science for 3 years and I have great experience dealing with teaching stuff and educational work flow My master is about cloud computing so I'm working now with cloud stack and already worked with openstack and eucalyptus. I have stable high speed 5 M line and plenty of time to work and be helpful for every body  less

    linux-system-administration arabic ubuntu centos amazon-ec2 c# security python latex 00 more less
    • $22.22 HOURLY RATE
    • 5.0
    • 54 HOURS
    • MALAYSIA
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 3 TESTS
  • Security expert- ITechsec.Ethical hacker. Penetration tester.

    If I want to introduce myself in one word , " I am a warrior against hackers or evil men do want waste your online business or reputation. I will ensure you 100% satisfaction with my development and hacking removal task. I … more

    If I want to introduce myself in one word , " I am a warrior against hackers or evil men do want waste your online business or reputation. I will ensure you 100% satisfaction with my development and hacking removal task. I work with below fields: -Penetration Testing - Joomla/Wordpress/osCommerce/Magento/Drupal and all CMS/forum devlopment. - Virus/Rootkit/Backdoors detection and removal - Web pages monitoring - Hacking recovery (shared hosting plans to dedicated servers) - Vulnerability patch - Audit - 24/7 Server Security Management - Full security audit (Linux dedicated/VPS servers) - System/Network Monitoring - Security updates/upgrades and hardening - Perl/CGI et PHP scripts audit -SQL Injection, XSS Cross site scripting - Havij, burp suite, sqlmap, web scarab - DDoS attack mitigation - Comment spams (blog, forum, contact form) As well as I do development work with different cms and php. Best regards, ASHRAFUZZAMAN .  less

    automotive-engineering network-security wireless-security security database-administration computer-networking penetration-testing mysql php data-entry 00 more less
    • $27.78 HOURLY RATE
    • 4.9
    • 4 HOURS
    • BANGLADESH
    • LAST ACTIVE
    • 4 PORTFOLIO ITEMS
    • 3 TESTS
  • Web development+PHP+mysql+wordpress+Smarty +prestashop-Content writing

    Over the last 8 years, I have developed a wide range of websites using HTML, DHTML, PHP, and MySQL, wordpress, codeigniter, Google API v3, Facebook API including sites for start up companies and small businesses. My core competency lies in … more

    Over the last 8 years, I have developed a wide range of websites using HTML, DHTML, PHP, and MySQL, wordpress, codeigniter, Google API v3, Facebook API including sites for start up companies and small businesses. My core competency lies in complete end to end management of websites ,php, mysql, wordpress, blog, bbolg, prestashop, codeigniter, interspire, content development, data entry, accounts, Google API v3 etc..  less

    php mysql security html css content-writing wordpress prestashop facebook-api google-maps-api 00 more less
    • $11.11 HOURLY RATE
    • 4.9
    • 1266 HOURS
    • INDIA
    • LAST ACTIVE
    • 41 PORTFOLIO ITEMS
    • 10 TESTS
    GROUPS:
    ASSOCIATED WITH:
  • System Administrator (IT Professional)

    Extensive Experience and Skills gained through establishing and developing full IT projects, networks and infrastructures from initial conception to completion. Experience covers customer liaison, design, testing to successful implementation within budget, scope, timescales and process limitations. Extensive LAN, WAN, Hardware … more

    Extensive Experience and Skills gained through establishing and developing full IT projects, networks and infrastructures from initial conception to completion. Experience covers customer liaison, design, testing to successful implementation within budget, scope, timescales and process limitations. Extensive LAN, WAN, Hardware, Software experience. Working cross-functionally within a customer focused, multi-site environment, maintaining the delivery of IT services and technology projects. Up-to-date in IT developments.  less

    isa-server activex security 00 more less
    • $11.11 HOURLY RATE
    • 4.5
    • 944 HOURS
    • PAKISTAN
    • LAST ACTIVE
    • 6 PORTFOLIO ITEMS
    • 9 TESTS
    ASSOCIATED WITH:
  • Project Manager/Technical Analyst

    During the past 5 years I have been adding to my Project Management skills by working with different technical groups to be sure that their skills are used to serve the clients and customers that they are pledged to help … more

    During the past 5 years I have been adding to my Project Management skills by working with different technical groups to be sure that their skills are used to serve the clients and customers that they are pledged to help. With my technical support background, I am uniquely qualified to work as the "in between" person. I am both technical and business oriented.I enjoy working to keep projects on course and seek to be challenged by managing the technical and human resources involved.I have just finished managing an exchange/AD migration to Microsoft Exchange Online with a major internet gaming company.Prior to that I worked with a major entertainment company as a Project Manager for a country wide software deployment using Sharepoint.  less

    project-management computer-networking database-administration microsoft-outlook-development microsoft-excel linux-system-administration perl security windows-administration microsoft-access sql 00 more less
    • $13.33 HOURLY RATE
    • 4.4
    • 3168 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 19 TESTS
    ASSOCIATED WITH:
  • Systems/Server Administrator / Network Admin / IT Service Desk Analyst

    CAREER OBJECTIVE: To deliver with the highest efficiency the technical skills and experiences learned combined with personal values and desirable attitudes. Meet the client’s expectation and satisfaction towards company success. SKILLS: NETWORK SECURITY ADMINISTRATION: ** Proficient in Network Security … more

    CAREER OBJECTIVE: To deliver with the highest efficiency the technical skills and experiences learned combined with personal values and desirable attitudes. Meet the client’s expectation and satisfaction towards company success. SKILLS: NETWORK SECURITY ADMINISTRATION: ** Proficient in Network Security and Network Problem Troubleshooting. ** Experience in configuring of High End Enterprise CISCO Routers, Summit Extreme L3 and Alcatel Switches. ** Strong knowledge in Network Configuration, VOIP and Network Design Infrastructure of LAN and WAN convergence. ** Strong knowledge in IP Addressing / Subnetting IPV4. ** Strong knowledge in Wireless LAN and 802.1x authentication network infrastructure. ** Strong knowledge in Routers with different Routing Protocols. SYSTEMS SUPPORT AND SERVER ADMINISTRATION: ** Experience in Windows Server 2008 & 2003 Active Directory Administration. ** Experience in Microsoft Exchange 2010 / 2003 Administration. ** Server Virtualization Experience ** Experience in Hyper-V, Hypervisor or Virtual Machine ** Experience in Symantec Backup Exec 2012/2010 and Symantec Endpoint Protection Manager. ** Experience in Amazon Route 53 Domain Management. ** Strong knowledge in Windows OS platforms, Wordpress and SonicWall. ** Strong Desktop Support troubleshooting skills (Hardware & Software). ** Knowledgeable in Citrix Administration. ** Software Installation of Anti-virus, Windows and Linux Red Hat platforms. ** Virus Removal and Prevention. IT SERVICE DESK SUPPORT (with ITIL concepts): ** 1st and 2nd line technical support; answering support queries via phone, email, remote and desk-side support. ** Maintained a high degree of customer service for all support queries and adhere to all service management principles. ** Take ownership of user problems and be proactive when dealing with user issues and to log all calls in the service desk ticketing system. ** Monitoring of ticket queue and ensure all request and issues are resolved in an efficient and timely manner. ** Set up, install and test PCs and peripherals for users. ** Served as technical resource to answer questions, identify needs, make recommendations, and carry out research. ** Maintained professional and technical knowledge by reviewing related professional publications. ** Undertake any other reasonable duties as requested by the IT Manager and Service Desk Team Leader. ACHIEVEMENTS: ** Completed and Passed Japanese Elementary 1 Course.  less

    security network-administration computer-networking japanese google-searching email-technical-support email-handling technical-support network-security wireless-network-implementation microsoft-exchange-server microsoft-hyper-v-server 00 more less
    • $5.56 HOURLY RATE
    • 4.9
    • 5950 HOURS
    • PHILIPPINES
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 1 TEST
  • Systems Architect / VMware VCP5.x

    As an Enterprise Lead Systems Architect In my most recent job, I was directly responsible for the virtual architecture including but not limited to infrastructure design and deployment of a robust vmware multi-site architecture, the supporting network architecture, modular “siloed … more

    As an Enterprise Lead Systems Architect In my most recent job, I was directly responsible for the virtual architecture including but not limited to infrastructure design and deployment of a robust vmware multi-site architecture, the supporting network architecture, modular “siloed” clustered racks, NetApp 2240 and 3240 FAS/SAN systems, remote management and notification systems, and user provisioned lab environment that allowed test teams to provision physical and virtual environments on the fly. All systems were subject to DISA based STIGS and IA scans to verify compliance. As the lead, I directly manage several people on my enterprise team and my efforts touch every person on the project in some way. This interaction has allowed me to create a positive rapport with the entire team while keeping a thumb on several area perspectives. I also manage and assist with the install and design of our SharePoint /Project 2010 integration which upon completion was intended to pull in data from various sources including IBM Jazz Suite, custom built data management systems, and several real world diagnostic and filed measurement tools to display varying aspects of project progress and test data. This effort is still in progress and is coming along nicely. Also support the basic user needs including user account management, file share access and organization, PC issues, software installs and upgrades, and training. Finally, I worked with several integration efforts as an advisory capacity on COTS products that were used in fielded builds and R&D efforts. The infrastructure is comprised of 50+ Racked servers, 18 NetApp products, and several Cisco switches, routers, ASA’s and AirPort WAP’s etc… These resources are grouped in “Silos” and setup to be modular for movement to other sites as needed. I also designed and deployed our domain, complete with multiple DC’s that spread out DNS, DHCP, NTP, and AD with cross site architecture in mind allowing users to move from Lab to Lab with common resources and permission sets. I work directly with the network team and IA team on outward facing services to insure security and threat mitigation. I also run Facebook and Skype classes for the elderly with my company's outreach program. I'm versatile and well tempered and I have a decent network of helpful folks that i can lean on if things get tough. From Teaching to Fixing to Disaster Recovery and Risk Assessment Planning to Recording My Radio voice and Audio Editing Skills.. I have a deep bag of Tools. Let me use them to help you with your next project!  less

    vmware-esx vmware-administration microsoft-small-business-server-administration network-administration windows-administration security computer-networking helpdesk-support requirements-analysis risk-management reverse-engineering 00 more less
    • $40.00 HOURLY RATE
    • 5.0
    • 15 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 4 TESTS
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