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Mhd. Wissam Al-Roujoulah

Linux System Administrator at SAWA ISP


Well educated and experienced Linux System Administrator with a strong background in Installation of enterprise linux distributions , Upgrading, Configuration of Servers (Mail Server, DNS, Firewall, VPS, and HTTP), remote trouble shooting, Management of linux system, performance analysis and monitoring of Linux systems. Proven to be an enthusiastic, dependable team player, problem solver, and teachable employee to lead or follow. Works well under pressure and a quick learner to new concepts.

Have good hands on experience on TCP/IP packets doing packet analyzing using tcpdump and Wireshark.

Good knowledge in Memory, Network and File Management .

Good knowledge in Performance tuning setting up RADIUS. 

Scheduling various cron jobs for backups, database, proprietary jobs using CRON and troubleshooting daily job problems. 

Worked on different security networking like VPN and IPSEC.

Worked with different channels like fiber and Ethernet.

Good hands on with distributed / grid computing .

Experience in Vmware software, Linux Virtualization.  

Having good hands on experience in creating, updating and closing tickets. 

Ability to handle multiple tasks and work independently as well as in a team. 

Excellent debugging skills and trouble shooting network related issues both on Ethernet and fiber. 


Work experience

Dec 2014Present

Linux System Administrator


SAWA ISP member of Pharaon Group Ltd - NOC Department - Damascus, Syria -
SAWA is one of the major internet service providers in Syria, which has been in business since 2005, pioneering in innovative services for customers. The NOC Department is responsible to provide all ISP services to the customers and responsible for the data-center servers. Linux System Administrator role includes the following responsibilities:
- Building and designing the ISP infrastructure
- Administrating Linux-based Firewalls with advanced routing and traffic control
- Administrating Linux-based Monitoring Systems, developing new monitoring plug-ins using bash and perl
- Administrating Linux-based Backup Systems, developing new backup and archiving plug-ins using bash and perl
- Administrating Linux-based Proxy and Mail Servers

Administrating Linux-based Virtualization System
- Developing system scripts to automate regular tasks and to generate reports
- Training Jr. System Administrators and serving as Team Leader
- Maintaining data-center physical devices and servers
- Installing new server and software
- Building and maintaining hardware and software RAID
- Providing full documentation for servers and services
- Ensuring the service is always up and running 24*7


Sep 2011aug 2016

Networks and Operating systems Engineer

Damascus University Faculty of Information Technology Engineering


Jan 2015

edX Honor Code Certificate for Introduction to Linux


Current Projects

Enhancing QoS in DCN Using Fat-Tree Topology with SDN Approach

The fat tree topology with multipath capability has been used in many recent data center networks (DCNs) for increased bandwidth and fault tolerance. Traditional routing protocols have only limited support for multipath routing, and cannot fully utilize the available bandwidth in such networks. In our project, we study multipath routing for fat tree networks. We propose a practical solution, which takes advantage of the emerging software defined networking paradigm. Our algorithms relie on a central controller to collect necessary network state information in order to make optimized routing decisions. We implemented the algorithms as an OpenFlow controller module and validated it with Mininet emulation