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Puedes consultar nuestra traducción al español 💻 de la documentación de Sci-kit learn 0.24.2 ahora disponible en:
➡qu4nt.github.io/sklearn-doc-es…
#qu4nt #announces #Sklearn
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Ofrecer soluciones guiadas por datos es un reto. Buscamos el uso inteligente de información para la acción colectiva. #qu4nt #datascience #datadriven
https://t.me/qu4nt เข้าร่วม Aralık 2018
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ADIÓS PAGAR por herramientas de IA 👋
Usa mejor estas GRATIS 👇
(Guárdalo para más tarde)
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qu4nt รีทวีตแล้ว
Data Analytics is not just a skill... It's an ECOSYSTEM
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qu4nt รีทวีตแล้ว
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qu4nt รีทวีตแล้ว
Paid Tools VS Free Alternatives
1. Research
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3. Watermark Removal
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Paid Tools VS Free Alternatives
follow me for more Ai related content 💯💯
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qu4nt รีทวีตแล้ว
El 90% de la gente usa ChatGPT para todo.
Pero hay una IA mejor para cada tarea.
Aquí tienes qué IA usar según lo que necesitas 👇
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Linux Firewall Configuration
1. Introduction
→ A firewall is a security system that controls incoming and outgoing network traffic.
→ It acts as a barrier between trusted internal systems and untrusted external networks.
→ In Linux, firewalls help protect servers, applications, and data from unauthorized access.
2. Why Firewall Configuration Matters
→ Prevent unauthorized access to your system.
→ Protect against network-based attacks.
→ Control which services are exposed to the internet.
→ Monitor and filter traffic based on rules.
→ Strengthen overall system security.
3. Types of Linux Firewall Tools
→ iptables
→ Traditional and powerful firewall tool.
→ Uses rule chains to filter traffic.
→ Operates at a low level in the kernel.
→ nftables
→ Modern replacement for iptables.
→ Simplified syntax and better performance.
→ Supports advanced rule management.
→ UFW (Uncomplicated Firewall)
→ Beginner-friendly firewall interface.
→ Built on top of iptables.
→ Easy to configure and manage.
4. Firewall Concepts
→ Rules
→ Define what traffic is allowed or blocked.
→ Example:
→ Allow SSH (port 22)
→ Block all other incoming traffic
→ Chains
→ Rules are organized into chains:
→ INPUT → Incoming traffic
→ OUTPUT → Outgoing traffic
→ FORWARD → Traffic passing through system
→ Policies
→ Default action for traffic:
→ ACCEPT → Allow traffic
→ DROP → Block traffic silently
→ REJECT → Block traffic with response
5. Using UFW (Simple Approach)
→ Enable Firewall
→ sudo ufw enable
→ Allow a Service
→ sudo ufw allow ssh
→ Allow a Port
→ sudo ufw allow 80
→ Deny a Port
→ sudo ufw deny 21
→ Check Status
→ sudo ufw status
6. Using iptables (Advanced Control)
→ Allow SSH
→ iptables -A INPUT -p tcp --dport 22 -j ACCEPT
→ Allow HTTP
→ iptables -A INPUT -p tcp --dport 80 -j ACCEPT
→ Drop All Other Traffic
→ iptables -A INPUT -j DROP
→ Save Rules
→ iptables-save
7. Using nftables (Modern Approach)
→ Create Basic Rule
→ nft add rule inet filter input tcp dport 22 accept
→ List Rules
→ nft list ruleset
→ Flush Rules
→ nft flush ruleset
8. Common Firewall Configuration Strategy
→ Allow essential services (SSH, HTTP, HTTPS).
→ Deny all unnecessary ports.
→ Restrict access to trusted IP addresses.
→ Enable logging for suspicious traffic.
→ Apply least privilege principle.
9. Firewall Logging
→ Monitor blocked and allowed traffic.
→ Helps detect attacks or misconfigurations.
→ Example (UFW logging):
→ sudo ufw logging on
10. Best Practices
→ Always allow SSH before enabling firewall (avoid lockout).
→ Use default deny policy.
→ Regularly review firewall rules.
→ Keep firewall tools updated.
→ Combine firewall with intrusion detection tools.
11. Tip
→ Linux firewalls are essential for network security.
→ UFW is simple and beginner-friendly.
→ iptables provides deep control.
→ nftables offers modern and efficient rule management.
→ Proper configuration protects systems from unauthorized access.
📘 Linux Mastery Ebook
→ Master Linux internals, security, firewall configuration, system monitoring, and architecture step-by-step.
🔗 Grab the Linux Mastery Ebook:
codewithdhanian.gumroad.com/l/dynwdc
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