Find the World's Best Firewall Freelancers

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Steve H. - Security Consultant / Linux System Administrator

Steve H.

Security Consultant / Linux System Administrator

$75/hr
0 hours
United States
New to Upwork
  • WebApp Pentesting
  • Firewall
Hafiz Z. - Windows Server and Messaging Specialist

Hafiz Z.

Windows Server and Messaging Specialist

$24.67/hr
845 hours
United States
88% JOB SUCCESS
“Excellent contractor. Very knowledgeable, great availability and excellent communication. Has been very reliable since 2009, a rare find.”
  • Microsoft Exchange Server
Vasiliy K. - System/Network administrator

Vasiliy K.

System/Network administrator

$55.56/hr
807 hours
Czech Republic
100% JOB SUCCESS
“I work with a lot of profesionnals in my day to day jobs. Vasiliy is a top one, answered all questions, answered all the problems and gived advice. Top top and top !”
  • Perl
  • Amazon EC2
  • Firewall
Lucjan K. - Senior Linux/Network Administrator

Lucjan K.

Senior Linux/Network Administrator

$25/hr
0 hours
Poland
2 REVIEWS
“Lucjan is a great contractor. He performed this task exceptionally well. When I want email list cleaning again I will contact only Lucjan. Thanks for a great job!!”
  • LAMP Administration
  • VPN
Raskin P. - Senior Network and System Specialist

Raskin P.

Senior Network and System Specialist

$45/hr
531 hours
Bangladesh
100% JOB SUCCESS
“Paul was a clear thinker, easy to communicate with and engaged good dialogue back and forth. Worked by voice call and remote session - easy on all fronts. Thanks!”
  • cisco routers
  • Cisco IOS
  • VPN
Jerry Y. - Network and Systems Engineer

Jerry Y.

Network and Systems Engineer

$30/hr
5,119 hours
Philippines
100% JOB SUCCESS
“Thank you for your help even though we weren't able to fix it through your help.”
  • Windows Administration
Mohammed A. - Talented Sysadmin

Mohammed A.

Talented Sysadmin

$33.5/hr
30 hours
Palestinian Territories
95% JOB SUCCESS
“Mohammed is the perfect contractor... he just simply completes the job, on time, no hassle, no questions, perfect english, no stress. This is the second time I have used him and...”
  • Amazon Web Services
  • TCP/IP
Abu S. - Asterisk, Linux, CISCO & Mikrotik

Abu S.

Asterisk, Linux, CISCO & Mikrotik

$15/hr
1,784 hours
Bangladesh
100% JOB SUCCESS
“Abu has been a pleasure to work with, very professional and I look forward to hiring him on more projects.”
  • Windows Administration
Ahmad S. - Cpanel/WHM/Linux Administrator/Firewall/security/Centos/Ubuntu

Ahmad S.

Cpanel/WHM/Linux Administrator/Firewall/security/Centos/Ubuntu

$16.67/hr
3,147 hours
Egypt
99% JOB SUCCESS
“Knows a lot about linux servers.”
  • CPanel
  • CentOS
  • Ubuntu
  • OpenVZ
Noman A. - +10 years experienced on Server & Network Administration

Noman A.

+10 years experienced on Server & Network Administration

$11.11/hr
5,523 hours
Bangladesh
100% JOB SUCCESS
“Noman is easy and pleasant to work with. He completed the Rackspace configuration successfully and was available to answer my questions. I'll be looking to hire him again if I...”
  • Amazon EC2
  • CPanel
  • Asterisk
Khawaja A. - Network Security Engineer CCNP Routing Switching and Security

Khawaja A.

Network Security Engineer CCNP Routing Switching and Security

$25/hr
447 hours
Pakistan
99% JOB SUCCESS
“Excellent experience and expertise. The work was completed successfully in the time that we required.”
  • Cisco ASA
  • cisco routers
  • VPN
Leonardo S. - Networking and Server Expert

Leonardo S.

Networking and Server Expert

$32.99/hr
1,461 hours
Brazil

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