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Network Security Upwork freelancers typically receive a client rating of 4.75.

Last updated: October 1, 2015
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Adeel Ali

Adeel Ali

Linux,System admin,Microsoft,Cisco,network Engineer

Pakistan - Tests: 6 - Portfolio: 7

I have more than 10 years working experience in the field of Information Technology supply the stark (predefined and patronage delimited) open seed result for each and every write of playacting with customization according to their work/business. Let me describe skills. my key work points are as under =Linux Server Security, Vulnerability Scanning and Penetration Testing =Administrate VPS and dedicated Server =Administrate LAMP (Linux, Apache, Mysql, PHP) Server =Apache: Audit, performance and load balancing =Automated MySQL database backup =PHP MyAdmin MySQL database manager =Setting up MySQL replication Master-Slave,Master-Master =Install and configure Mysql Cluster for Ubuntu,Redhat,Centos =Mail Services like Postfix,worked on Panels like Plesk, webmin, Cpanel Directadmin etc =Install and configure virtualmin Migrate website,migrate databases =AWS, Rackspace, CloudStack =Microsoft Server,TMG,ESX,Hyper-V,Pfsense,Databackup Citrix Metaframe,Device anywhere, McAfee / Symantec Cisco routers all series like 800,1800,2800,3800 with Cisco switches ,Cisco PIX 501 / 506 / 515 / 525 and ASA 5505 / 5510 / 5520 / 5540 firewalls,Cisco Wireless Aironet Aps 1600/2600 and Cisco ACS Server. Working with Routing protocols VLANs / STP / RSTP / Etherchannel / MST VPNs – GRE / IPSec / DMVPN / SSL / MPLS

$10.00 /hr
0 hours

Shahzad Rana Younus

Shahzad Rana Younus

CISSP/Cloud Expert/Technical Writer/Tableau/Project Manager

Pakistan - Tests: 4 - Portfolio: 2

I am certified, experienced and seasoned IT professional. Over the past 14 years, I have accumulated a vast range of experience which entails me to tackle most IT situations I encounter quite easily and efficiently. If you want the work done related to IT, I am the guy to hire. If still skeptical, have a look below at my achievements. Progressive experience with administration, and directing a broad range of Corporate IT initiatives & business focused solutions using leading ICT technologies with industry best practices and standards. Specialties: IT Security and Infrastructure development (CISSP - Certified Information Security Professional - Member ID 302621) ITIL Foundation, COBIT 5 BI Tools - Tableau / QlikView Business Continuity & Disaster Recovery Planning Network Administration and Database Management CISCO Networking Virtual/Cloud Computing Network security and Server Administration Technical Writings SEO/WordPress/WHMCS LinkedIn profile:

94% Job Success
$12.50 /hr
122 hours

Yash T.

Yash T.

Penetration tester,Ethical Hacker,CEH

India - Portfolio: 6

I am EC-Council Certified Instructor(CEI),EC-Council Certified Ethical Hacker(CEH),a Cisco Certified Network Associate(CCNA) and Diploma in Information Security & Ethical Hacking(ISEH) with background of Bachelor of Engineering in Electronics & Telecommunications. I have 5 years of experience in the field of Ethical Hacking,Networking and Information Security.I have been a Consultant for Information security and a Trainer for CEHv7 & CEH v8 and ISEH. I have experience in Vulnerability assessment & Penetration testing(VAPT) and provide services for Website Security Testing,Network security testing,Application security testing and I have completed projects for Corporate as well as Government clients in the past. I provide Server Hardening,Malware removal from website and Firewall configuration/hardening Services.

68% Job Success
$16.00 /hr
0 hours

Trung V.

Trung V. Agency Contractor

Network engineer

Vietnam - Tests: 5 - Portfolio: 2

I have more then 3 years experience as a System Administrator and Website Developer using WordPress,Magento, Ecommerce, HTML, PHP, CSS, JavaScript, Jquery. I am working on Enterprise level Network Management, Installation and Configuration of Windows/Linux Servers. Skills: WordPress e-Commerce, JavaScript, ... Now. i was remainning a small group with three coder. Networking skill: - The Configuration and troubleshoot network technical is completed. The most is cisco’s production and focus on the architecture : Enterprise,Branh Office, small business. - The knowledgement about Architechtured using many different network devices. There by, I have the ability to using multiple lines oaf network devices( non-cisco product_ as Draytek, Nortel, Linksys. System skill: - Experience with Windows, Linux Redhat, CentOS. - Experience Apache Http server, Tomcat, Jboss, ActiveMQ. - Well know about HTTP, HTTPS. - Know about LDAP protocol and single sign on method. - Easy install and management Samba file server, Squid proxy server, Bind DNS server - Well know about SMTP, IMAP, POP3 and email encryption services. - Can install, configure and management PostgreSQL cluster, replication - Can install, configure and management MySQL database. - Know about MySQL cluster, replication - Can install, configure and management DB2. - Know Raid technology. - Deployed Net filter/Iptables firewall on Centos as router, firewall. - Install and monitor all website and program for VMS Mobifone with Apache http, Apache tomcat,… - Troubleshoot LAN, WAN topology. Management all networking devices. - Experience of IT Facility control at office.

Associated with: AFc-TR

$15.00 /hr
0 hours

Francisco Salazar

Francisco Salazar

Senior Web Developer & SysAdmin, WordPress Speed Optimization Expert.

Venezuela - Tests: 14 - Portfolio: 12

Web Designer / Developer / System Administrator with 12+ years experience in CentOS, Ubuntu, Redhad, Amazon Web Services AWS, VPS and cloud platforms. Strong knowledge of open source CMS ( Magento, Wordpress, Drupal, Joomla ). Rich experience in speeding up WordPress websites, on shared hosting or dedicated servers, helping your sites ranking up higher in Google search engine.

100% Job Success
$25.00 /hr
1,015 hours

Muhammad Ishaq Koreja

Muhammad Ishaq Koreja

Database Adminstration Network Administration

Pakistan - Tests: 2

Server: Server 2003, 2008 and server 2012 Complete installation of Active directory Configure additional domain controller DNS and DHCP servers configuration Complete Monitoring of active directory Networking: Mikrotik Routers complete configurations VPN Site to site and site to multi site ubnt Nano Station configuration • Installations, configurations and maintenance the network. • Build networks, maintains and monitor external and internal web presence. • Administers the network. • Evaluates and recommends changes to current and future network requirements to meet needs. • Providing assistance to users when required. • A Network virus protection. • Ability to locate and comprehend technical documents related to problems encountered. • Technically updated and strong Internet search skills. • Ensuring users face no difficulty accessing network resources. • Developing plan and implement the overall strategic goals of the network system. • Defining policies and procedures regarding network system. • LAN design and architecture, TCP/IP, Ethernet, web services. MAILING SERVERS • Microsoft Exchange server 2000 • Microsoft Exchange Server 2003 • Microsoft Exchange Server 2007 • Complete Installation of Exchange server • Configure the entire user on exchange • Back up Exchange Server • Local Backup of Users • Mobile Computing Security: ISA server 2004, ISA server 2006, Threat Management Gateway TMG 2010

$10.00 /hr
0 hours

Ivan D.

Ivan D.

Linux Administration/IT Security/PHP/WordPress/HTML/CSS

Bulgaria - Tests: 6 - Portfolio: 3

Linux Server Administration - Setting up VPS and dedicated servers with strengthen security. Usually prefer to work with Ubuntu, Debian and CentOS, but any other distro is fine. - chroot-ing - firewall - iptables Linux server security - Log analysing - Honey Pots - Strengthening Security - Chrooting - Iptables - Software protection against DoS with iptables and custom scripts - php7 Wordpress Development -Custom Wordpress Themes from PSD -Plugin development and tweaking.

Groups: Bluehost Developers and Designers

$15.56 /hr
2 hours

Suman Saha

Suman Saha Agency Contractor

QA Specialist for all kind of mobile apps and websites.

Bangladesh - Tests: 2 - Portfolio: 16

I am working as a freelancer for Project Management and (Manual-testing, White-box-testing, Performance-testing, Security Testing, Test plan, Test case design and writing). I am hard working, passionate and extremely enthusiastic. I have over 5 years experience in Software Testing. I feel confident my skills and experience make me the perfect candidate for QA job. I am working on different types of application based on Mobile Media Testing (e.g. Mobile Devices such as iPhone's, iPads, Windows8, Black Berry, Android and Related Tools), Web Application Testing, Facebook Apps Testing etc. I am following those process during my testing time: • Participate in the SCRUM meetings and provide the test estimates. • Review specifications. • Creating the test plan and also test cases. • Identify the test areas and training required. • Identify the test tools (software and hardware) and maintain them. • Write and update test cases. • Perform sanity test. • Test new features. • Complete system test. • Retest bugs. • Write test completion report. • Keep staging environments up-to-date. • Take the owner ship of the bugs. • Perform regression testing before each release into production. • Performance testing (Load and stress testing). I have collection of Following devices: Apple Devices: iPhone 4, 4s, 5, 5c, 5s, iPhone 6/6 Plus (iOS 6.1.4, iOS 7.1.2, to iOS 9.0.1), iPad 3(iOS 8.0), iPad 4(iOS 7.0.4), iPad mini (iOS 9.0.1), iPad Air (iOS 8.4.1) Android Devices: Samsung S5(5.0), Samsung S4(4.4), Android Samsung Nexus S (4.1.1), Samsung S3(4.3), Samsung Galaxy Note 10.1(N8000), Samsung P6200 Galaxy Tab 7.0 Plus, Sony Xperia Z, Samsung Dous 3. Others Devices: Windows devices. I have also strong knowledge in HTML, CSS, Javasript, jQuery, PHP, MySQL, Java. I have experienced work in a virtual team environment. So, I can ensure you that I am the perfect fit for the QA and also Development position. You can relay on me.

Associated with: Zenith Service

100% Job Success
$13.00 /hr
3,842 hours

Shankar K.

Shankar K. Agency Contractor

Consultant with experience in setting QA/Testing process in startups

India - Tests: 2 - Portfolio: 1

In my 8 years of career, I have earned extensive exposure to software testing across capital markets, telecommunication, mining, and e-commerce domains. Over the years, I have developed a reputation of handling the project from its core and then enhancing the delivery quality and delivery efficiency. Experienced as a grey box tester, I been involved in both reporting bugs as well as troubleshooting the root cause. To make the work efficient, I have the exposure of automation with various tools which includes QTP, SELENIUM & JMETER etc. Working from scratch, I have developed a sustainable framework which has propelled the overall efficiency of the team. Worked both as a team member and team leader, I have enjoyed my project and ensured that I remain a better team player. My communication skills are appreciated across pears and managements. I have involved in cross selling, estimation and talent hiring in my previous assignments.

Associated with: Teknotrait Solutions Pvt. Ltd.

$27.78 /hr
30 hours