Master of Business Administration (MBA)

2024 [view degree ]

Master of Science in Computer Science (MS)

2024 [view degree ]

Bachelor's in Computer Engineering

2014

CISSP

CISSP - Certified Information Systems Security Professional [view certificate ]

Security+

CompTIA Security+ Certified [view certificate ]

Since 2011

I earned my first Red Hat certificate (RHCE on RHEL 5) in January, 2011.

RHCA 5

Red Hat Certified Architect in Infrastructure, Level 5 [view certificate ]

Linux Performance Tuning

Red Hat Certified Specialist in Linux Performance Tuning [view certificate ]

Containers and Kubernetes

Red Hat Certified Specialist in Containers and Kubernetes [view certificate ]

Containers

Red Hat Certified Specialist in Containers [view certificate ]

RHCE

Red Hat Certified Engineer (certified on RHEL 5, 6, 7) [view certificate ]

RHCSA

Red Hat Certified System Administrator [view certificate ]

RHCSA in OpenStack

Red Hat Certified System Administrator in Red Hat OpenStack [view certificate ]

RHCVA

Red Hat Certified Specialist in Virtualization [view certificate ]

High Availability Clustering

Red Hat Certified Specialist in High Availability Clustering [view certificate ]

Gluster Storage

Red Hat Certified Specialist in Gluster Storage Administration [view certificate ]

Deployment and Systems Management

Red Hat Certified Specialist in Deployment and Systems Management [view certificate ]

Server Security and Hardening

Red Hat Certified Specialist in Server Security and Hardening [view certificate ]

Security: Network Services

Red Hat Certified Specialist in Security: Network Services [view certificate ]

SELINUX

Red Hat Certified Specialist in SELINUX Policy Administration [view certificate ]

LDAP

Red Hat Certified Specialist in Directory Services and Authentication [view certificate ]

AWS-CSAA

AWS Certified Solutions Architect - Associate [view certificate ]

CCNA

Cisco Certified Network Associate [view certificate ]

CKA

Certified Kubernetes Administrator [view certificate ]

PCAP

Certified Associate in Python Programming [view certificate ]

PSM 1

Professional Scrum Master 1 [view certificate ]

Since 2008

I started managing cPanel/WHM servers in 2008.

CWSA-1

cPanel & WHM System Administrator I Certification [view certificate ]

CWA

cPanel and WHM Administrator Certification [view certificate ]

CPP

cPanel Professional Certification [view certificate ]

LiteSpeed

LiteSpeed Certification [view certificate ]

Machine Learning Fundamentals

University of California, San Diego and edX [view certificate ]

Python for Data Science

University of California, San Diego and edX [view certificate ]

Probability and Statistics in Data Science using Python

University of California, San Diego and edX [view certificate ]

PhysicsHelp4u.com (2008)

I have always been enthusiastic about physics and mathematics. I developed my first website, physicshelp4u.com, in 2008 to offer free help on physics. The website was search engine optimized and it was a success when my site showed on the first page on Google Search for the keywords "physics help" and "free physics help". Although I own the domain now, the project is currently inactive.

Linux Server Administration (2008)

I got a bare metal server for hosting PhysicsHelp4u.com. It was 2008 when I started working on IT Infrastructure Administration, Security, and Application Development.

Linux Workstation (2008)

I built my first Linux workstation in 2008. It had a AMD Phenom II X6 1090T CPU, 16GB RAM, and a discrete graphics card connected to dual 22-inch 1080p monitors.

Personal Website (2010)

I created my personal website in July, 2010. The domain soumik.com was priced at $5000 and I could not afford it at that time. Finally, I switched it over to soumik.com in December, 2021.

IT Infrastructure Management, Cloud Computing, Distributed Systems

• Operating Systems Used (on servers): RHEL, CentOS 5/6/7/8, AlmaLinux 8, Ubuntu, Debian.

• Control Panels Used (on servers): cPanel/WHM, Plesk, Webmin, CWP Pro, Kloxo, Interworx, SolusVM, Virtualizor, HyperVM.

• Implement new servers and cloud infrastructure with distributed storage.

• Commonly used tools (the list is not exhaustive): strace/ltrace, sed/awk/grep, ps, top, netstat, portstat, tcpdump, lsof, dmidecode, systemtap/stap, gnuplot, rrdtool, libcgroup – sysstat (sar, iostat, vmstat, etc), rpmbuild, netstat, chkrootkit, rkhunter, iscsi, svn, tuned, iptables, CSF, APF, BFD, Litespeed, Apache, Nginx, IPMI, KVM over IP, Nagios, Cacti.

• RPM Package Manager: Edit files and compile RPMs.

• Redundant Architecture Configuration: Includes Hardware RAID10 and RAID60 arrays.

• Highly Available Clusters, Load Balancing, Performance Tuning.

• Distributed Storage: Mounted via network protocols, Ceph, iSCSI, NFS, SMB.

• Hadoop Clusters, HDFS

• Automated Backup Management

• System Recovery: Includes booting a system using a rescue ISO to recover data.

• Virtualization: KVM, OpenVZ/Virtuozzo. Includes setup, maintenance, and migration of virtual machines across clusters.

• Network Configuration and Management, DHCP.

• Web Servers (Apache, Nginx, LiteSpeed), FTP Servers.

• Migration of servers and cloud infrastructure to a different data center.

• Proactive system monitoring and automated alerts.

Cybersecurity

• Denial of Service (DoS) attack filtration using firewall: Includes SYN Flood and other types of attacks.

• Web Security: Managing server and website security using firewalls and mod_security/WAF rules. Includes brute force protection, securing file systems like /tmp by mounting such partitions with less privileges, removing additional software and permissions that are not required, protecting websites against injections, and others.

• SELINUX: Configure custom SELINUX policies. For example, if SELINUX is enabled and we want to use a port other than 22 for SSH, the policy needs to be updated.

• Rootkit Monitoring: Setup rootkit detection software and configure it to email the administrator if a rootkit is detected.

• Virus Monitoring: Setup antivirus software and configure it to email the administrator if a virus is detected.

• Secure FTP, Apache, DNS, and other services.

• Intrusion detection and removing/repairing infected files.

• Follow Least Privilege Access where possible.

• IP based access control and block public ports not actively used.

• Tracking and patching of zero day vulnerabilities.

AWS (Amazon Web Services)

• Includes popular AWS services like EC2, Lightsail, S3, IAM, DynamoDB, Aurora, Redshift, Route 53, Load Balancing, VPC, High Availability, SQS, SWF, SNS, Kinesis, Serverless Applications, and others.

Other Cloud Platforms

• GCP (Google Cloud Platform)

Software Development and Maintenance

• Web Development: HTML, CSS, Bootstrap, JS, JQUERY, PHP, MySQL, MariaDB, SQLite.

• Python

• Software Development Life Cycle, Agile, Scrum.

• Other programming languages used in the past: C++, JAVA.

Others

• PHP scripts (installation, configuration, customization, maintenance): CRM, WordPress, PrestaShop, Joomla, phpBB, SMF, WHMCS, PunBB, Drupal, Odoo, Kayako, AWBS, Coppermine, 4images, osTicket, vBulletin, MAILMAN, SPHIDER, XenForo, and many more.

• Search Engine Optimization (SEO): Includes proper "H" tags, no broken links, organized breadcrumbs, ALT tags for images, content related to the domain, focus on user experience, and other factors.

• Data Science, Data Analytics, Python for Data Science.

• Operating Systems Used (on personal computers): Linux (Fedora, RHEL, CentOS, Ubuntu, AlmaLinux), Windows (XP, Vista, 7, 8, 10, 11), macOS.

• Adobe Dreamweaver, Photoshop, Lightroom, Premiere Pro, Acrobat Pro DC.

• Drafting policies and compliance management including DMCA, HIPPA, GDPR, and others.