Profile image of f1x3r
@f1x3r
Flag of Poland Warszawa, Poland
Member since February, 2011
1 Recommendations

f1x3r 

* Systems administation: Linux (RedHat, Debian, Ubuntu), FreeBSD, Windows * Network administration: VLAN, VPN, Wireless networks, Network equipment managment (Nortel, HP, Cisco), Deep understanding of network architecture, * High availability: active-passive clusters (RHCS, Linux-HA), load-balancing techniques, clustered file systems (DRBD, GFS/OCFS, GlusterFS) * Security: firewalling (iptables, ipfw, ipf/pf), antivirus techniques, antispam techniques (both before- and after- queue), SELinux (including writing custom policies), PKI * Database administration: MySQL, PostgreSQL, Oracle, SQL * Network services administration: www (apache, nginx), mail (postfix, sendmail, exim, dovecot, cyrus), DNS (bind, dnsmasq), LDAP (openldap) * Virtualization: Xen, KVM, VMWare (ESX/ESXi, VSphere), libvirt API, OVF * Programming: Perl, PHP, sh scripting, C/C++, Applescript, VBScript, Python, Java
$25 USD/hr
41 Reviews
5.2
  • 89%Jobs Completed
  • 100%On Budget
  • 93%On Time
  • 28%Repeat Hire Rate

Recent Reviews

  • image of bluestreek Openvpn configs $50.00 USD

    “Thank you!”

    bluestreek Flag of United States 3 weeks ago.
    • System Admin
    • Linux
    • Engineering
    • Electronics
    • Software Architecture
    • Hire me
  • image of deregtx Let my website make use of data drive Partition $45.00 USD

    “Very good and fast work with excellent communication”

    deregtx Flag of Netherlands 4 weeks ago.
    • System Admin
  • image of AureliusBP Networked Raspberry Pi devices $260.00 USD

    “This was a very difficult project and the professionalism was outstanding. Unafraid of the challenge and dealt well with roadblocks encountered working great as a team to get this thing figured out.”

    AureliusBP Flag of United States 1 month ago.
    • Linux
    • Shell Script
    • Network Administration
  • image of bluestreek NAT IPTABLES $90.00 USD

    “Makes everything so easy! Thanks!!”

    bluestreek Flag of United States 1 month ago.
    • System Admin
    • Linux
    • Engineering
    • Electronics
    • Software Architecture
    • Hire me
  • image of opert Configure transparent Squid on a Linux running OpenVPN server $250.00 USD

    “Wonderful work, on time and very professional. I plan to work with him again soon.”

    opert Flag of Israel 2 months ago.
    • Linux
    • Network Administration
  • image of bluestreek Analyze .pcap file for a ddos attack $30.00 USD

    “Very knowledgeable and a pleasure to work with.”

    bluestreek Flag of United States 2 months ago.
    • Linux
    • Network Administration

Experience

Owner

Jun 2012

Company providing all sorts of IT services.

Network / Systems Engineer

Apr 2008 - May 2012 (4 years)

- administrators' team leadership - designing a nd implementing HA systems - designing and implementing monitoring systems - designing and implementing buisiness processes within organization (incident and event managment)

Network / Systems Engineer

Oct 2002 - Mar 2008 (5 years)

- technical department managment - network design - implementing new services - systems administration (FreeBSD, Linux, Windows) - configuration managment

Education

B. Sc. (faculty: Telecommunication Systems and Networks)

1999 - 2003 (4 years)

M. Sc. (faculty: IT, Electronics, Telecommunication)

2003 - 2005 (2 years)

Exams

  • Linux Kernel 1
    95%
  • TCP/IP
    82%
  • Shell Script
    78%
  • Unix Level 1
    88%

My Top Skills

  • Linux 30
  • System Admin 24
  • Software Architecture 12
  • Electronics 11
  • Engineering 9
  • PHP 8
  • Script Install 8
  • Shell Script 8
  • MySQL 6
  • Windows Desktop 4
  • Apache 3
  • Network Administration 3
  • UNIX 2
  • Database Administration 2
  • Web Security 1
  • SQL 1
  • Computer Security 1
  • Nginx 1
  • Amazon Web Services 1
  • Perl 0
  • C Programming 0
  • Java 0
  • .NET 0
  • Translation 0
  • Audio Services 0
  • Data Entry 0
  • Ruby on Rails 0
  • Excel 0
  • Testing / QA 0
  • Wordpress 0
  • Powerpoint 0
  • Cloud Computing 0
  • Asterisk PBX 0
  • Active Directory 0
  • DNS 0
  • IIS 0
  • Big Data 0
  • VPS 0
  • Chef Configuration Management 0
  • PostgreSQL 0
  • BSD 0
  • Ruby 0
  • Ubuntu 0
  • Debian 0
  • Red Hat 0
  • VMware 0
  • Internet Security 0

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