Senior Linux System Administrator
• Responsible for various hardware and software acquisitions and implementations.
• Expertise in Unix/Linux system installation, configuration, administration, the development and
testing of backup and recovery methodologies, troubleshooting, capacity and performance planning,
• Performance tuning, preventative maintenance, monitoring and alerting setup and security hardening.
• Experience in the support of fundamental technologies such as DNS, SFTP/FTP, SMTP, SNMP,
LDAP, SSL, SSH, TCP, UDP, IP, RAID, SQUID and DHCP.
• Experience in the support of Designing of PC Cluster using LAM/OSCAR FOSS TOOL
• Experience in the virtualization using XEN/KVM
MIGRATIONS: AMAZON/Wordpress/Magento/LAMP/Cpanel migration plans and implementation, backup-restore and recovery plans. I have helped dozens of clients migrate their web sites and applications into the CLOUD VPC.
Design and build Web Servers with HIGH PERFORMANCE (LAMP, NGINX/python, Nginx/Varnish, Nginx/php-fpm, Jboss, Apache tomcat and Varnish) - Improve and Fix performance issues, service optimization, security issues and deployments.
MALWARE removal and analysis: WordPress / Magento / Joomla Malware removal and remediation, Incident handling and Forensics analysis.
BOOST and optimize websites with: NGINX, Varnish, REDIS, Amazon S3, Memcached, APC, apache tunning and mysql tunning, Amazon CloudFront and more.
Amazon Cloud Computing (AWS) - AMAZON EC2, amazon CDN S3, amazon RDS, amazon ELB, Amazon AutoScaling, Amazon VPC, CloudFront, Route53, etc. Also Management of multiple Control panels like Rackspace Cloud Computing, SoftLayer, GoDaddy, HostGator, dreamhost and MediaTemple.
DevOps and Continuous integration: Docker + vagrant, Vagrant + Puppet, Puppet + Git, Docker + Ansible. Continuous integration with Jenkins, travisCI, distelli and more...
Designing and deploying scalable & Highly available systems such as: Amazon Load Balancing (ELB), Hearbeat, HAProxy, mysql cluster, apache cluster...
Network and web security such as: Vulnerability Assessments, Hardening servers, security audits, Penetration testing, Virus/Malware/Threats/Vulnerabilities countermeasures, web security, fail2ban, Tripwire-AIDE-OSSEC, mod_security, mod_evasive, Denial of Services (DDOS) countermeasures, Firewalls (iptables, CSF and apf), etc.
VPS: Cpanel / WHM / Plesk / DirectAdmin / Webadmin - Migrations, management, hardening, configuration, maintenance and high level of Administration.
Databases Administration such as: Mysql tweaking and tunning, MongoDB, load balancing and Mysql replication (Master & Slave) for High traffic.
Database: Mysql tweaking and tunning, MongoDB, ElasticSearch, Apache Solr, Sphinx, lucene, MariaDB, Postgresql replication & Pgpool, Mysql load balancing and Mysql replication (Master & Slave) for High traffic.
Networking: TCP/IP high expertise, NAT, FIREWALLS, CISCO routing and switching and Packet analysis with tcpdump and wireshark.
Storage solutions and Directory management: SAMBA, NFS, FTP and sftp. LVM and RAID*.
SCRIPTING: Bash and python.
Proficient with MAIL Servers: postfix, sendmail and Zimbra.
Source control versioning: GIT and SVN.
Deploying and maintaining Monitoring systems such as: nagios, ZAbbix, cacti and Jboss Operation Network (JON).
Backups solutions: amanda, rsync, Amazon backups and rsnapshot.
Research & development (R & D) for any open source service and technology.