Dariusz Duma, System Engineer

Dariusz Duma

System Engineer

Cisco

Lieu
Pologne
Éducation
Diplôme, Red Hat Certified System Administrator (RHCSA)
Expérience
26 years, 2 Mois

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Expériences professionnelles

Total des années d'expérience :26 years, 2 Mois

System Engineer à Cisco
  • Pologne
  • Je travaille ici depuis novembre 2015

As a System Engineer in Cisco CMS (Cisco Global Network Operation Center in Cloud & Managed) I take care about IT infrastructure of clients. My main tasks are creating and implementing changes on servers, solve problems, maintaing services. Technology used on daily basis:

Operating systems:
- RHEL (Linux),
- SUSE (Linux),
- Cisco IOS,

Services:
- Apache,
- vsftpd (FTP),
- SNMP,
- Iptables (firewalls),
- Tomcat,
- Jboss,
- Java,
- Liferay,
- Cisco CNR (DNS),

Data bases:
- Oracle,
- MS SQL,

Tools:
- Sap HANA Studio,
- Dynatrace,
- VMWare vShpere,
- Cisco Configuration Engine (CCE),
- Zenoss,
- QuickSilver,
- Remedy,

Network:
- ASR1K,
- Nexus 4/5/6K
- Catalyst 6500

Network and Linux System Administrator à IntoNet F.U.H.
  • Pologne
  • mars 1998 à octobre 2015

Mainly as a Linux specialist I had to take care about maintain and configuring servers and services, security, routing tasks and backup strategy. I used to write own tools (scripts) for own purposes. One of the main achievements was the design of the structure of services/servers working together in the exchange of data and monitoring each others. I own RHCSA and RHCE certificates.

- strong experience with RHEL/Debian/Ubuntu,
- OpenVZ/KVM virtualization management,
- servers: installation, maintenance, management,
- services: installation, configuration, monitoring (HTTP/FTP/SMB/NTP/POP3/IMAP),
- networking: deep knowledge technical aspects of transmission - packets filtering, sniffing, monitoring, flow control, classification of packet headers,
- firewall and security - any aspect of network and services security, spam filtering,
- technical network care (routers, switches).

Éducation

Diplôme, Red Hat Certified System Administrator (RHCSA)
  • à Red Hat
  • avril 2014

Certyfication ID: 140-073-479

Diplôme, Red Hat Certified Engineer (RHCE)
  • à Red Hat
  • avril 2014

Certyfication ID: 140-073-479

Diplôme,
  • à Liceum Ogólnokształcące im. Stanisława Wyspiańskiego
  • juin 1996

Specialties & Skills

Linux server administration
Linux Server
Linux Security
Network Systems
Server Management
Network configuration
Linux Server Administration
Linux server
Network systems
Internet Services

Langues

Anglais
Moyen
Polonais
Expert

Formation et Diplômes

Red Hat Certified Engineer (RHCE) (Certificat)
Date de la formation:
April 2014
Valide jusqu'à:
April 2017

Loisirs

  • trekking, photography, traveling, books, Linux