ah@s412:~$ du -hd1 /backup/ | sort -h
6.3M /backup/settings
3.2G /backup/db
4.6G /backup/user_data
7.8G /backup/
ah@s412:~$ rm -rf /backup/
rm: cannot remove '/backup/': Permission denied
ah@s412:~$ sudo !!
sudo rm -rf /backup/
[sudo] password for ah:
ah@s412:~$ mail -s "Space problem solved" BigBoss@e|
About Me
Hello! I'm Atanas, an experienced systems administrator specializing in Linux server systems, with over two years of experience in the IT industry. Through my work, I've gained extensive knowledge in Linux systems administration, networking, and IT infrastructure. Additionally, I've recently acquired several certifications, including LFCA, LFCS, and Bash Scripting, to further deepen and validate my skills.
What Sets Me Apart
Expertise in Linux Systems Administration: With my extensive experience in administering Linux server systems, I possess a solid understanding of managing and maintaining Linux-based environments. I can efficiently handle tasks such as system configuration, troubleshooting, and performance optimization.
Certifications and Technical Skills: With my recent certifications such as LFCA, LFCS, and my proficiency in Bash Scripting, I've enhanced my skills and expertise in Linux administration. I'm capable of developing efficient and automated solutions to optimize operational processes and increase productivity in Linux environments.
Wide Technical Understanding: In addition to my expertise in Linux system administration, I have knowledge in Git, Python, Docker, JavaScript, and others. These diverse skills allow me to adapt to various requirements and develop innovative solutions in Linux-based environments.
Why You Should Get to Know Me
As a dedicated system administrator with proven experience and expertise in Linux server systems, I'm confident that I can make a valuable contribution to your team. I'm ready to tackle new challenges and continually enhance my knowledge and skills to contribute to the success of your company.
Skills
Bulgarian
German
English
The basics
Advanced
Seasoned
Expert
Certificates
SC103: Shell Scripting
using Bash
Issued by The Linux Foundation, Mar 2024
Earners of this designation have demonstrated they can work proficiently with Bash and shell scripting, including the ability to work on the Linux command line efficiently and utilize commands, functions, and other shell scripting basics to automate common tasks.
LFCS: Linux Foundation
Certified Systems Administrator
Issued by The Linux Foundation, Nov 2023
Earners of this designation demonstrated the skills required to do basic to intermediate system administration and are knowledgeable in the operational support of Linux systems and services. Earners can assume responsibility for first line troubleshooting and analysis, and demonstrated proficiency in Essential Commands, Operation of Running Systems, User and Group Management, Networking, Service Configuration and Storage Management.
LFCA: Linux Foundation
Certified IT Associate
Issued by The Linux Foundation, Nov 2023
Earners of this designation demonstrated knowledge of fundamental IT concepts including operating systems, software application installation and management, hardware installation, use of the command line and basic programming, basic networking functions, security best practices, and other related topics to validate their capability and preparedness for an entry-level IT position.
LFS207: Linux System Administration Essentials
Issued by The Linux Foundation, Nov 2023
Earners of the LFS207: Linux System Administration Essentials badge have the tools and concepts they need to efficiently build and manage an enterprise Linux infrastructure. They know how to work with Git and perform essential collaborative tasks, and can use state-of-the-art system administration techniques in real-life scenarios.
LFS200: Fundamentals of Open Source IT and Cloud Computing
Issued by The Linux Foundation, Feb 2023
Earners of the LFS200: Fundamentals of Open Source IT and Cloud Computing badge understand Linux administration tasks such as installing Linux, user administration, storage administration, networking installation and Cloud technologies. Learners have gained knowledge with some of the text, graphical and web-based interfaces that Linux offers. They have demonstrated an understanding and a readiness for an entry level Linux administrator.
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LFS200 Course Outline
01. Course Introduction
02. What is Linux?
03. User Interfaces
04. Installing Linux
05. Linux Filesystems and File Management
06. User and System Administration Commands
07. Networking and Network Troubleshooting
08. Software and Cloud Computing: Basic Concepts
09. Security Fundamentals
10. DevOps Fundamentals
11. Supporting Applications and Developers
LFS207 Course Outline
01. Course Introduction
02. Linux Filesystem Tree Layout
03. User Environment
04. User Account Management
05. Group Management
06. File Permissions and Ownership
07. Package Management Systems
08. dpkg
09. APT
10. RPM
11. dnf and yum
12. zypper
13. Git Fundamentals
14. Processes
15. Process Monitoring
16. Memory Monitoring, Usage and Configuring Swap
17. I/O Monitoring and Tuning
18. Containers Overview
19. Linux Filesystems and the VFS
20. Disk Partitioning
21. Filesystem Features: Attributes, Creating, Checking, Usage, Mounting
22. The Ext4 Filesystem
23. Logical Volume Management (LVM)
24. Kernel Services and Configuration
25. Kernel Modules
26. Devices and udev
27. Network Addresses
28. Network Devices and Configuration
29. LDAP
30. Firewalls
31. System Init: systemd History and Customization
32. Backup and Recovery Methods
33. Linux Security Modules
34. System Rescue
LFCA Domains & Competencies
Linux Fundamentals 20%
System Administration Fundamentals 20%
Cloud Computing Fundamentals 20%
Security Fundamentals 16%
DevOps Fundamentals 16%
Supporting Applications and Developers 8%
LFCS Domains & Competencies
Operations Deployment 25%
Networking 25%
Storage 20%
Essential Commands 20%
Users and Groups 10%
Bash Domains & Competencies
Shell Scripting Using Bash