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| التاريخ | نمو المشتركين | الإشارات | القنوات | |
| 01 سبتمبر | +1 |
منشورات القناة
What Happens When You Connect Your Phone to Wi-Fi?
You tap Connect and within seconds you're online. But several networking processes happen.
1. Wi-Fi Association
Your phone scans for nearby SSIDs and connects to the Access Point (AP). Authentication and encryption are negotiated if the network is secured.
2. DHCP
DHCP automatically provides your phone with an IP address, subnet mask, default gateway, and DNS server.
3. Default Gateway
Usually your router, the default gateway forwards traffic destined for networks outside your local network.
4. DNS
When you enter
google.com DNS translates the domain name into an IP address so your device can locate the server.
5. ISP
Your router forwards internet traffic to your ISP connecting your network to the wider internet.
6. Routing & NAT
The router determines where packets should go and often uses NAT so multiple devices can share one public IP.
The Journey
Phone → AP → Router → ISP → Internet → Server
© 2026 @Addis_Sec | Your community for cyber and tech| 2 | https://t.me/addis_sec_chat | 1 |
| 3 | 👉 Join the discussion community and share your thoughts 💬 | 5 |
| 4 |  👤 Dennis Ritchie (ዴኒስ ሪቺ)፦ C የተባለውን የፕሮግራሚንግ ዓለም የቀየረ ቋንቋ ፈጣሪ!
🔍 ለመሆኑ Dennis Ritchie ማን ነው? C Programming ምንድን ነው?
ዴኒስ ሪቺ በBell Labs የሰራ የኮምፒውተር ሳይንቲስት ሲሆን፣ በ1970ዎቹ ከKen Thompson ጋር C Programming Languageን አበለጸገ። C የSoftware Engineering፣ Operating Systems እና Systems Programming መሰረት ከሆኑ ቋንቋዎች አንዱ ነው።
ዴኒስ ሪቺ በC ያሳደረው ተፅዕኖ፦
1. C Programming Language፦ C ከAssembly ቀላል ሆኖ ከHardware ጋር በቅርብ እንዲሰራ ተዘጋጅቷል። ይህም ፈጣን Software እና የሲስተም ቁጥጥር አስችሏል።
2. UNIX እና C፦ UNIX በC እንደገና መጻፉ Operating Systemን ከተለያዩ Hardwareዎች ጋር ማስማማት አስቻለ።
3. የዛሬው ቴክኖሎጂ መሰረት፦ C በC++፣ C#፣ Java እና Linux Kernel ላይ ተፅዕኖ አሳድሯል።
💡 ከC Programming እና ከDennis Ritchie የምንማረው ትምህርት፦
C ቀላል እና ከHardware ጋር ቅርብ የሆነ ንድፍ ለብዙ ዓመታት ዘልቋል።
⚙️ Performance:- C በOperating Systems፣ Embedded Devices፣ Compilers እና Systems Programming ዛሬም ጠቃሚ ነው።
#CProgramming #DennisRitchie #Programming #Coding #CyberSecurity
💡 ለበለጠ cyber security፣ Programming እና tech መረጃዎች ቻናላችንን Join ያድርጉ!
© 2026 @Addis_Sec | ⭐️ Your community for all things cyber and tech in Ethiopia | 53 |
| 5 |  WannaCry Ransomware Attack 💀🌐
WannaCry በ2017 በዓለም ዙሪያ በተፈጠረ እጅግ የታወቀ Ransomware Cyber Attack ነው። ጥቃቱ በWindows የሚሰሩ ስርዓቶችን በመጠቃት ፋይሎችን ይቆልፍ እና እንደገና ለመክፈት ክፍያ ይጠይቅ ነበር።
WannaCry በተለይ በሶስት ነገሮች ይታወቃል፦
1. 🔐 File Encryption: በኮምፒውተር ውስጥ ያሉ ፋይሎችን በማመስጠር ተጠቃሚዎች ፋይሎቻቸውን እንዳይጠቀሙ ያደርግ ነበር።
2. 🌐 Rapid Spreading: አንድ ስርዓት ከተጠቃ በኋላ በNetwork ውስጥ ወደ ሌሎች Vulnerable Windows Systems ሊሰራጭ ይችል ነበር።
3. 💰 Ransom Demand: የተመሰጠሩ ፋይሎችን ለመመለስ ተጠቃሚዎች በCryptocurrency ክፍያ እንዲፈጽሙ ይጠይቅ ነበር።
The Impact 🌍
WannaCry በዓለም ዙሪያ በብዙ ድርጅቶች እና ኮምፒውተሮች ላይ ተጽዕኖ አሳደረ። በተለይም የUK National Health Service (NHS) ላይ ያስከተለው ችግር በጣም ታዋቂ ሆነ።
What Can We Learn? 🛡️
WannaCry አንድ አስፈላጊ Cybersecurity lesson ያስተምረናል፦
Keep systems patched, maintain reliable backups, and never underestimate a known vulnerability.
ብዙ ጊዜ Cyber Attack ለመከላከል የሚያስፈልገው ከፍተኛ ቴክኖሎጂ ብቻ ሳይሆን የSecurity Fundamentals በትክክል መተግበር ነው።
#CyberSecurity #Ransomware #CyberAttack #EthicalHacking #AddisSec
© 2026 @Addis_Sec | 🌐 Your community for all things cyber and tech in Ethiopia | 236 |
| 6 |  Tool Recommendation: Metasploit 🔥
Metasploit Framework is one of the most widely used open-source platforms for penetration testing and security research. It helps security professionals identify vulnerabilities, test exploits, and evaluate the security of systems in authorized environments.
Why should beginners and cyber security professionals learn Metasploit?
🎯 Exploitation: Test known vulnerabilities in environments.
🔎 Vulnerability Testing: Understand how security weaknesses can be identified.
⚙️ Modules & Payloads: Provides a large collection of exploit, auxiliary, payload, and post-exploitation modules.
🧪 Security Labs: Excellent for practicing penetration testing through CTFs, cybersecurity labs, and authorized security assessments.
Resources:
Official Website: https://www.metasploit.com/
GitHub Repository: https://github.com/rapid7/metasploit-framework
#CyberSecurity #Metasploit #Pentesting #EthicalHacking #AddisSec
© 2026 @Addis_Sec | 🌐 Your hub for all things cyber and tech in Ethiopia | 258 |
| 7 |  THE BINARY ENIGMA
A secret lies within the machine's language.
Can you uncover what the computer is trying to tell you?
CATEGORY · Crypto
DIFFICULTY · Easy
POINTS · 50
HINT
Computers speak in 0s and 1s and also try spinning it halfway around the alphabet.
FLAG FORMAT
FLAG{...}
Challenge: https://asctf-1.onrender.com/challenge/the-binary-enigma | 248 |
| 8 | لا يوجد نص... | 231 |
| 9 | لا يوجد نص... | 1 |
| 10 | لا يوجد نص... | 4 |
| 11 | Hello everyone! 👋 I'd like to gather your thoughts would you be interested in a structured penetration testing course, complete with step‑by‑step practical lab walkthroughs for absolute beginners and prepared in Amharic? Please share your feedback! | 1 |
| 12 |  What is Wireshark? 🦈
Wireshark በ1998 የተጀመረ፣ ዛሬ በዓለም ዙሪያ በCybersecurity ባለሙያዎች፣ Network Engineers እና Security Analysts በስፋት የሚጠቀሙበት የNetwork Protocol Analyzer መሳሪያ ነው። ይህንን ኃይለኛ መሳሪያ በነፃ እና Open Source መልኩ ለማንም እንዲጠቀምበት ቀርቧል።
Wireshark በሁለት ዋና ጠንካራ ጎኖቹ ይታወቃል፦
1. የNetwork Traffic መተንተን፦ በNetwork ላይ የሚጓጓዙ የData Packets መረጃዎችን በመያዝ እና በመተንተን በNetwork ውስጥ ምን እየተፈጠረ እንደሆነ ለማወቅ ያግዛል።
2. Troubleshooting & Security Analysis፦ የNetwork ችግሮችን፣ የተጠረጠሩ Traffic እንቅስቃሴዎችን እና የSecurity Incidents ምልክቶችን ለመመርመር በጣም ጠቃሚ ነው።
Wireshark
አንድን Network ለመጠበቅ ወይም ለመመርመር በውስጡ የሚካሄደውን Traffic መረዳት አስፈላጊ ነው። Wireshark ይህንን የNetwork Visibility እና Traffic Analysis ስራ በብቃት ያከናውናል።
GitHub Recommendation:- የWireshark ሙሉ Source Code የGitHub ገጽ በዚህ ሊንክ ያገኙታል 👉 https://github.com/wireshark/wireshark
#CyberSecurity #Wireshark #EthicalHacking #OpenSource #NetworkSecurity #AddisSec
© 2026 @Addis_Sec | 🌐 Your community for all things cyber and tech in Ethiopia | 237 |
| 13 |  📌 What is SOC in Cybersecurity?
A Security Operations Center (SOC) is a team that continuously monitors, detects, investigates, and responds to cybersecurity threats to protect an organization’s systems and data.
🔍 What a SOC Does
🔎 Threat Monitoring – Monitors networks, endpoints, servers, and applications for suspicious activity.
🚨 Threat Detection – Identifies malware, unauthorized access, suspicious logins, and other security incidents.
🧪 Incident Investigation – Analyzes alerts and security events to determine what happened.
🛡️ Incident Response – Takes action to contain and mitigate security threats.
📊 Security Analysis – Uses logs, alerts, and threat intelligence to identify potential attacks.
🛠️ Common SOC Tools
SIEM
EDR
IDS/IPS
SOAR
🎯 SOC Use Cases
Threat Detection
Incident Response
Threat Hunting
Security Monitoring
Log Analysis
Threat Intelligence
© 2026 @Addis_Sec | 🌐 Your community for all things cyber and tech in Ethiopia | 214 |
| 14 | 📌 What is SOC in Cybersecurity?
A Security Operations Center (SOC) is a team that continuously monitors, detects, investigates, and responds to cybersecurity threats to protect an organization’s systems and data.
🔍 What a SOC Does
🔎 Threat Monitoring – Monitors networks, endpoints, servers, and applications for suspicious activity.
🚨 Threat Detection – Identifies malware, unauthorized access, suspicious logins, and other security incidents.
🧪 Incident Investigation – Analyzes alerts and security events to determine what happened.
🛡️ Incident Response – Takes action to contain and mitigate security threats.
📊 Security Analysis – Uses logs, alerts, and threat intelligence to identify potential attacks.
🛠️ Common SOC Tools
SIEM
EDR
IDS/IPS
SOAR
🎯 SOC Use Cases
Threat Detection
Incident Response
Threat Hunting
Security Monitoring
Log Analysis
Threat Intelligence
© 2026 @Addis_Sec | 🌐 Your community for all things cyber and tech in Ethiopia | 1 |
| 15 |  📌 What is OSINT in Cybersecurity?
OSINT (Open Source Intelligence) is the practice of collecting and analyzing publicly available information for security assessments, threat intelligence, and penetration testing.
🔍 What OSINT Covers
Public Records – WHOIS lookups, DNS records, corporate registrations, and business filings.
Social Media – Public profiles on LinkedIn, Twitter, GitHub, and other platforms that reveal employee names, roles, and project details.
Technical Data – Subdomains, IP ranges, SSL/TLS certificates, and open ports.
Data Breaches – Leaked credentials and passwords found in breach databases like HaveIBeenPwned and DeHashed.
Search Engines – Advanced Google dorks, Shodan for connected devices, and Censys for certificate and network intelligence.
🛠️ Common OSINT Tools
Recon-ng
theHarvester
Shodan
Maltego
Amass
Hunter.io
🎯 OSINT Use Cases in Cybersecurity
External Reconnaissance Threat Intelligence
Data leaks
brand impersonation
Social Engineering | 211 |
| 16 |  🛡️ New CTF Challenge: Everting
📂 Category: Web Exploitation
📊 Difficulty: 🟡 Medium (250 Points)
🌐 Platform: ADDISEC CTF
📝 Challenge Description:
Deep in the digital underworld, a shadowy hacking collective known as NullByte has set its sights on Everting a cutting-edge freelance platform trusted by thousands. Their goal? Inject a backdoor into the system and sell access to the highest bidder.
Everting's CISO has caught wind of the plot but needs proof. You're called in as an elite ethical hacker to beat NullByte at their own game. Your mission: infiltrate Everting's infrastructure, uncover the critical flaws, capture the flag, and expose the vulnerability before the hackers strike
.
Time is ticking. The clock is running. The flag awaits.
🏅 Flag Format: CTF{...}
👉 Access the challenge: https://asctf-1.onrender.com/challenge/everting
#CTF #CyberSecurity #EthicalHacking #AddisSec #WebExploitation | 254 |
| 17 |  +3I've been working on this for a while now and I'm happy to say the platform is 80% complete.
It's designed to be a space where anyone can learn cybersecurity whether you're just starting out or looking to level up.
What's inside:
✅ Free courses & labs
✅ Premium training paths
✅ CTF arena to practice
✅ Community discussions
Everything is structured, practical, and built to actually help you build real skills.
If you're interested, drop a 🛡️ and I'll notify you when it goes live.
#AddisSec #CyberSecurity #PenTesting #CTF | 292 |
| 18 |  SkillMoney
Complete tasks and manage your rewards.
https://t.me/SkillMoney01_bot/earn?startapp=ref_1476CCF1 | 13 |
| 19 | https://youtu.be/pt9-zU-Xtu4?si=M66sR9wSt-wZBdjp | 107 |
| 20 |  🚀 Master Pen Testing: A New Way to Learn is Coming Soon!
Want to get into cyber world but feeling overwhelmed by where to start? I’m working on something special to help you build your career right here in Ethiopia. 🛡️
I’m building a Pen Testing Roadmap & Simulation designed to bridge the gap between theory and real-world application. It’s practical, structured, and aligns with the core competencies you need to succeed. Even better?
You will earn a professional-grade certificate upon completion to showcase your hard-earned skills. 🎓
What’s coming in this roadmap:
🔍 Reconnaissance & Footprinting
🛡️ Scanning & Enumeration
💻 Vulnerability Assessment
📝 Exploitation & Reporting
This is all about helping you build your skills, step by step, in a way that truly matters for your career. We are bringing high-quality cybersecurity training to our local community.
I’m putting the finishing touches on the platform, and the launch is coming very soon.
#CyberSecurity #AddisSec #LearnToHack #PenTesting | 155 |
