SSH
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What is SSH?
SSH (Secure Shell) is a cryptographic network protocol used for secure remote login and other secure network services over an unsecured network. It provides a secure channel over an unsecured network by using strong encryption to protect the connection against eavesdropping, tampering, and man-in-the-middle attacks. SSH is commonly used for remote command-line login, remote command execution, and secure file transfers. It typically runs on TCP port 22 and replaces older, less secure protocols like Telnet. SSH uses public-key cryptography for authentication and supports various authentication methods, including passwords and key-based authentication. It's a fundamental tool for system administrators, developers, and anyone requiring secure remote access to systems.
Free resources to learn SSH
More in stage 4: Security Skills and Knowledge
- Security Skills and Knowledge
- Understand Common Hacking Tools
- Core Concepts of Zero Trust
- Understand Common Exploit Frameworks
- Roles of Compliance and Auditors
- Blue / Red / Purple Teams
- Understand Concept of Defense in Depth
- Understand the Definition of Risk
- False Negative / False Positive
- Understand Concept of Runbooks
- Understand Backups and Resiliency
- True Negative / True Positive
- Understand Basics of Forensics
- Cyber Kill Chain
- Basics of Threat Intel, OSINT
- Basics and Concepts of Threat Hunting
- MFA & 2FA
- Honeypots
- Understand Handshakes
- Basics of Vulnerability Management
- Operating System Hardening
- Understand CIA Triad
- Basics of Reverse Engineering
- Understand Concept of Isolation
- Privilege Escalation
- Penetration Testing Rules of Engagement
- Basics of IDS and IPS
- Web Based Attacks and OWASP10
- Perimiter vs DMZ vs Segmentation
- Authentication vs Authorization
- Learn how Malware works and Types
- Star
- Ring
- Mesh
- Bus
- Understand the OSI Model
- Common Protocols and their Uses
- Common Ports and their Uses
- SSL and TLS Basics
- Basics of NAS and SAN
- Kerberos
- RADIUS
- LDAP
- SSO
- Certificates
- Local Auth
- RDP
- FTP
- SFTP
- HTTP / HTTPS
- SSL / TLS
SSH: common questions
Can I learn SSH in Hindi?
This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain SSH in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.
Is this SSH tutorial for beginners?
It is lesson 141 of 301 in the free Cyber Security roadmap, in stage 4, Security Skills and Knowledge. If you are new to Cyber Security, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.