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In modern Linux system administration, mastering tools like Ceph, Nftables, Containers, Bash Scripts, and PowerShell is essential for efficient infrastructure management. Below is a deep dive into these technologies with practical commands and steps.
You Should Know:
1. Ceph – Distributed Storage System
Ceph provides scalable and fault-tolerant storage. Key commands:
Install Ceph sudo apt install ceph Check cluster health ceph -s List OSDs (Object Storage Daemons) ceph osd tree Create a Ceph filesystem ceph fs new <fs_name> <metadata_pool> <data_pool>
2. Nftables – Modern Firewall
Replacing iptables, Nftables offers better syntax and performance:
Flush existing rules sudo nft flush ruleset Allow SSH sudo nft add rule inet filter input tcp dport 22 accept Block an IP sudo nft add rule inet filter input ip saddr 192.168.1.100 drop List rules sudo nft list ruleset
3. Container Management (Docker/Podman)
Run a container docker run -d --name nginx nginx List containers docker ps -a Remove a container docker rm -f nginx Build a custom image docker build -t myapp .
4. Bash Scripting for Automation
Example backup script:
!/bin/bash backup_dir="/backup" source_dir="/var/www" tar -czf "$backup_dir/backup_$(date +%F).tar.gz" "$source_dir"
5. PowerShell on Linux
Install PowerShell
sudo apt install -y powershell
Run PowerShell
pwsh
Get running processes
Get-Process
Manage services
Get-Service | Where-Object { $_.Status -eq "Running" }
What Undercode Say:
Linux system administration is evolving with Ceph for storage, Nftables for security, and containers for scalability. Automation via scripting and cross-platform tools like PowerShell enhances efficiency.
Expected Output:
- A functional Ceph cluster.
- Secure firewall rules with Nftables.
- Automated tasks via Bash/PowerShell scripts.
- Efficient containerized workloads.
Prediction:
As hybrid environments grow, Linux admins will increasingly integrate Windows tools (PowerShell) with Linux, while Ceph and Nftables dominate storage and security.
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IT/Security Reporter URL:
Reported By: Daodinhdu Proxmox – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
