Adama Diallo

Experience

• 

  AccentCare

  Apr 2018 - Sept 2021

  Linux System Administrator

  Managed server builds and deployments, specializing in Centos7x.Conducted user account administration, addressing and resolving customer issues through comprehensive troubleshooting.Monitored and managed server performance using associated tools to maintain optimal functionality.Set up, configured, and troubleshoot TCP/IP, DHCP, DNS, NFS, CIFS systems to ensure seamless network operations.Performed detailed logs administration to detect and swiftly resolve system errors. Provided technical support to software developers, facilitating efficient development cycles.Developed comprehensive functional and technical documentation to support system maintenance and future developments.Performed security hardening on dedicated servers by disabling unused services, enhancing overall system security.Utilized basic LDAP and Active Directory knowledge to bind the member server to the LDAP server and auto-mount the home directory.Implemented cost optimization strategies using AWS Cost Explorer, AWS Budgets, and AWS Trusted Advisor, resulting in significant cost savings and efficient resource utilization.Managed file archiving, compression, unpacking, and decompression using tools such as gzip, star, tar, bzip. Configured key-based authentication for SSH, ensuring secure system access.Installed and updated software packages from RedHat Network, configuring a remote repository or for the local file system.Customized user shell environment using shell initialization files for personalized user experiences. Configured Server specifically for Database and Apache, ensuring efficient performance.Collaborated within a team to provide 7x24 support when required, ensuring consistent system uptime and reliability Show less

• 

  Eagle Care

  Sept 2021 - now

  Linux System Administrator

  Install, and configure both virtual and physical servers, specializing in RHEL 7, 8, 9 and Centos 7, 8 deployments.Conduct comprehensive log management on UNIX/Linux servers, optimizing processes and managing crash and swap issues alongside password recovery.Set up and configured TCP/IP, DNS, NFS, CIFS, LDAP, KVM, and Samba servers in a multi-platform LAN, troubleshooting any related issues.Plan, implement, and maintain AWS infrastructure, including virtual private clouds (VPCs), subnets, security groups, IAM roles, and policies.Assist in implementing AWS services, including EC2, S3, RDS, VPC, IAM, CloudWatch, ELBs, and ASG. Write CloudFormation stack to create multiple AWS cloud servicesAdminister RHEL 7, 8, 9 and Centos 7, 8 server troubleshooting, focusing on resolving configuration-related challenges.Implementing and managing virtualization solutions using VMware ESXI, Oracle Virtual Box, and KVM.Installing and configuring Samba server, efficiently mapping it to the Windows server for seamless integration.Integrated single sign-on LDAP/AD server and configured Auto-mount for improved accessibility.Participated in detailed root-cause analysis of recurring issues, contributing to the enhancement of system backup and security set-up. Supervised user account administration, including the management of password aging configurations on servers.Ensured the security and integrity of file systems and hosts, administering necessary patches and updates to optimize performance. Show less