Изображение профиля abusayed2004
На сайте с 6 октября 2012 г.
14 Рекомендации


В сети Офлайн
Work 10 years on server security, cloud, AWS, OpenStack, VoIP, Asterisk, Vtiger CRM, Open VPN, CentOS, Ubuntu, Redhat, VoIPSwitch, Oracle DB, RHEVM, OpenStack, Mysql Red hat, Python, PHP scriptwriter for IVR and AGI implementation on asterisk, have a good team for support and further development. Puppy Linux customization. • Linux - Hosting Systems Administration & Monitoring • DevOps • Services Optimization • Security Hardening • VoIP, Asterisk, SMS, Dongle, FreePBX install configure, maintain • Infrastructure Planning • Disaster Recovery • Shell Scripting • Capacity planning, application delivery planning • Network Troubleshoot, Spanning Tree, PVST, RSTP, HSRP, RIP, BGP, EGRP IGRP, MPLS • SAN Troubleshoot • GlusterFS, CEPH • NFS, SMB, ISCSI, SMTP • Linux performance tuning • MySQL, Oracle DB performance tuning • Laravel web application development • Web Security, Web benchmark, best practice • IPTV, Live streaming, VOD, FFmpeg • Raspberry Pi
$30 USD/hr
84 отзыва(-ов)
  • 91%Выполненные работы
  • 98%В рамках бюджета
  • 93%Своевременность
  • 19%Рейтинг повторного найма

Элементы портфолио

Последние отзывы

  • изображение Richard S. Project for Mohammad Abu S. -- 19/08/16 20:42:03 $90.00 USD

    “Always a pleasure. Second time with him. Knowledgeable and easy to work with.”

  • изображение Richard S. Project for Mohammad Abu S. $112.50 USD

    “Very understanding and works through till the end”

  • изображение Stephen W. Grandstream GWX4104 Gateway to FreePBX 14 $100.00 AUD

    “Yes - the issue couldn't be resolved as there were carrier issues, but he informed me he would help when these were resolved.”

  • изображение Gustavo P. IncrediblePBX 1hr support $50.00 USD

    “Good guy did a good job!”

  • изображение Jonathan A. Configure Phone Network $110.00 USD

    “Great work. Quick delivery.”

  • изображение Ralph C. Support Creating a Self Signed Certificate €27.00 EUR

    “I needed Mohammad to issue a secured certificate on my VPS, a small piece of work that shouldn't require more than an hour. Mohammad was quick to reply to my messages and very straightforward from the beginning. He delivered the job really quickly and seamlessly. I will hire him again should I need a Linux expert.”

Опыт работы

Linux administrator

Dec 2012

Dealing with VoIP, Web development, vtiger integration, Call Center, And asterisk PBX, VoIP billing solution, a2billing install, customization, Server Rent and Commercial VoIP software like voipswitch, VOS3000, Mor-12, MVTS, install, configure and, support.

Head of Network Operation

May 2010 - May 2012 (2 years)

Softswitch Mangement, Routing, Adding Route, Provision client and provider GW, Network Security....etc



2017 - 2018 (1 year)


2007 - 2011 (4 years)


Digium Certified Asterisk Associates (2012)


Asterisk PBX, Setup, Configuration, Dial-plan, Interactive Dial-plan, Call Queue, Digital, Analog interface configure

Red Hat Certified System Administrator (2017)


170-290-290 Installation using Kickstart Manage filesystems and logical volumes Manage scheduled jobs Access network filesystems Manage SELinux Control firewalling Troubleshooting

Dynamic Web Application Using PHP & MY SQL (2013)


Web Application Using PHP and MY SQL,

Red Hat Certified Engineer (2018)


170-290-290 Configuring static routes, packet filtering, and network address translation, Setting kernel runtime parameters Configuring an iSCS) initiator Producing and delivering reports on system utilization Using shell scripting to automate system maintenance tasks Configuring system logging, including remote logging Configuring a system to provide networking services, including HTTP/HTTPS, File Transfer Protocol (FTP), NFS, server message block (SMB), Simple Mail Transfer Protocol (SMTP)

Red Hat Certified Specialist in Virtualization (2018)


170-290-290 Install Red Hat Virtualization Manager. Create datacenters, clusters, pools, and templates in Red Hat Virtualization Manager. Install and configure Red Hat Virtualization Hypervisors to support Linux® and manage them using Red Hat Virtualization Manager. Perform essential management tasks.

Red Hat Certified Specialist in Server Security and Hardening (2018)


170-290-290 Configuring file systems and volumes for more restrictive security policies Implementing additional user account security and identity management Configuring enhanced, secure logging and audit capabilities Identifying and performing appropriate package updates in response to Common Vulnerabilities and Exposure (CVE) and Red Hat Security Advisory (RHSA) reports

Red Hat Certified Specialist in Gluster Storage Administration (2018)

Red Hat

Deploy and configure Red Hat Gluster Storage instances on virtual and physical systems Configure and manage Red Hat Gluster Storage volumes Configure Red Hat Gluster Storage clients Configure Red Hat Gluster Storage features Manage and troubleshoot Red Hat Gluster Storage instances

CCNA-Routing Switching (2018)


• LAN Switching Technologies • Routing Technologies • WAN Technologies • Infrastructure Services • Infrastructure Maintenance

Red Hat® Certified System Administrator in Red Hat OpenStack (2017)

LinuxPathshala (Tranning)

Install and configure Red Hat OpenStack Platform Manage users, projects, flavors, and rules Configure and manage images Add compute nodes


VoIP Business

Graduate paper


  • Preferred Freelancer Program SLA
  • Numeracy 1
  • VPN 1
  • PHP Level 1
  • Unix Level 1
  • MySQL Level 1
  • US English Level 1
  • Network Programming 1


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