温馨提示:本站仅提供公开网络链接索引服务,不存储、不篡改任何第三方内容,所有内容版权归原作者所有
AI智能索引来源:http://www.ssh.com/ssh/putty/download
点击访问原文链接

PuTTY - Secure Download

PuTTY - Secure Download About us Investors Partners Careers Solutions SOLUTIONS Zero Trust Suite Quantum-Safe Cryptography (QSC) SalaX Secure Collaboration Security Risk Assessment, Quantification & Mitigation By Topic Just-in-Time Access Secure vendor access Credentials & Secrets Management Hybrid & multi-cloud access management Interactive tour: Privileged Access in the Cloud M2M connections IT Audits & Compliance Secure file transfer By Industry Managed Service Providers (MSP) Operational Technology (OT) Federal Government Security Products SECURE ACCESS & SECRETS MANAGEMENT SECURE FILE TRANSFER & ENCRYPTION NQX™ quantum-ready encryption Tectia™ SSH Client/Server Tectia™ z/OS SalaX Secure Collaboration Secure Mail 2024 Secure Messaging 2024 SalaX Secure Collaboration Solutions SOLUTIONS PrivX Zero Trust Suite SalaX Secure Collaboration Strong ID-based access with Entra ID & Zero Trust Suite Quantum-Safe Cryptography (QSC) Security Risk Assessment, Quantification & Mitigation Device trust & access and identity verification Identity-based authentication & converged IAM and PAM TOPICS Just-in-Time Access Secure vendor access Credentials & Secrets Management Hybrid & Multi-Cloud Access Management Interactive tour: Privileged Access in the Cloud M2M Connections Management IT Audits & Compliance Secure File Transfer INDUSTRIES Managed Service Providers (MSP) Operational Technology (OT) Federal Government Security Healthcare Data Security OT Security IT/OT convergence of data & systems Zero Trust Access and ZSP Workflow approvals Secure remote access  Secure patch management  OT Compliance Discovery and threat intelligence Phishing-resistant MFA & device trust Products SalaX SECURE COLLABORATION Secure Mail Secure Messaging Secure Sign SalaX Secure Collaboration FQX File Encryptor SECURE ACCESS & SECRETS MANAGEMENT PrivX™ PAM PrivX™ OT Edition PrivX Key Manager SECURE FILE TRANSFER & ENCRYPTION Tectia™ SSH Server Tectia™ SSH Server for IBM z/OS PrivX Desktop NQX™ quantum-safe encryption Services SSH Risk Assessment™ Professional Services Support Contact us Customer cases PrivX Zero Trust PAM Enterprise Key Management UKM Tectia SFTP for servers & mainframes SSH Secure Collaboration Resources SSH Academy Content library Blog References Press releases Downloads Manuals Events & Webinars Media Legal Report a vulnerability Solutions SOLUTIONS PrivX Zero Trust Suite SalaX Secure Collaboration Strong ID-based access with Entra ID & Zero Trust Suite Quantum-Safe Cryptography (QSC) Security Risk Assessment, Quantification & Mitigation Device trust & access and identity verification Identity-based authentication & converged IAM and PAM TOPICS Just-in-Time Access Secure vendor access Credentials & Secrets Management Hybrid & Multi-Cloud Access Management Interactive tour: Privileged Access in the Cloud M2M Connections Management IT Audits & Compliance Secure File Transfer INDUSTRIES Managed Service Providers (MSP) Operational Technology (OT) Federal Government Security Healthcare Data Security OT Security IT/OT convergence of data & systems Zero Trust Access and ZSP Workflow approvals Secure remote access  Secure patch management  OT Compliance Discovery and threat intelligence Phishing-resistant MFA & device trust Products SalaX SECURE COLLABORATION Secure Mail Secure Messaging Secure Sign SalaX Secure Collaboration FQX File Encryptor SECURE ACCESS & SECRETS MANAGEMENT PrivX™ PAM PrivX™ OT Edition PrivX Key Manager SECURE FILE TRANSFER & ENCRYPTION Tectia™ SSH Server Tectia™ SSH Server for IBM z/OS PrivX Desktop NQX™ quantum-safe encryption Services SSH Risk Assessment™ Professional Services Support Contact us Customer cases PrivX Zero Trust PAM Enterprise Key Management UKM Tectia SFTP for servers & mainframes SSH Secure Collaboration Resources SSH Academy Content library Blog References Press releases Downloads Manuals Events & Webinars Media Legal Report a vulnerability About us Investors Partners Careers SSH Academy Cloud Cloud Access Management Cloud Applications Cloud Computing Cloud Computing Models Cloud Computing Pros and Cons Cloud Computing Security Cloud Computing Services: Characteristics Cloud Infrastructure Entitlement Management (CIEM) Cloud Security Buyer's Guide Cloud Security Maturity Model Cloud Service Providers IaaS Immutable Infrastructure in Modern IT PaaS SaaS Virtualization Technology Compliance Cybersecurity Compliance Basics of SSH Compliance Basics of SSH Key Compliance Basel III Digital Operational Resilience Act (DORA) Ensuring ISO 27001 with PAM Fips 200 GDPR HIPAA ISACA ISO 27001 NIS Directive A Guide to NIS2 Directive NIST Cybersecurity Framework NIST 2.0 Cybersecurity Framework NIST 7966 NIST 800-53 PCI-DSS Sans Top 20 Sarbanes Oxley Understanding PAM Standards Cryptography Cryptography Explained Cryptography and the Quantum Threat Encryption Key Management Private & Public Keys Quantum Computing & Post-Quantum Algorithms What is File Encryption? Identity and Access Management (IAM) What is Identity and Access Management (IAM)? What is IAM Zero Trust Framework? What is Zero Trust Network Access (ZTNA)? A Guide to Zero Trust Architecture Active Directory Entra ID by Microsoft Ephemeral Certificates & Ephemeral Access Gartner CARTA How PAM Complements Existing IAM IAM vs PAM Identity Governance and Administration (IGA) Identity Management Jump Server Just-in-Time Access Just-in-Time Security Tokens Key IAM Concepts for IT Professionals Multi-Factor Authentication (MFA) OpenID Connect (OIDC) Privileged Identity Management (PIM) Radius Sudo User Account Types User IDs Unified IAM-PAM solution Internet of Things (IoT) IoT Security IoT: Accessing IoT devices for SSH What is IIoT? Operational Technology What is OT Security? Best OT Security Solutions Best Practices for Secure Remote OT Access Critical Infrastructure Cybersecurity: Key Concepts Explained How to Safeguard Your OT Network Without Separate IT/OT Solutions How to Secure IoT and OT Systems: A Practical Guide ICS OT Security Industrial Automation Cybersecurity: Key Considerations and Risks IT vs OT Navigating OT Security Standards OT, ICS, SCADA explained OT Risk Management: What It Is and Why You Need It OT Security Assessment OT Security Best Practices OT Security Essentials OT Governance: Key Principles for Effective Implementation PAM and IACS Integration PAM & IEC 62443 Access Control Standards PAM for Energy Sector PAM for Manufacturing PrivX for Energy Sector PrivX for Forestry Industry Remote Diagnostics for Ships Remote Maintenance of Pulp&Paper Machines SCADA Security Essentials: Your Need-to-Know Guide What Is OT Monitoring and Why Is It Important? What is the IT/OT Convergence? Why Is Zero Trust Access Important in OT? Password and Secrets Management A Guide to Passwordless and Keyless Authentication Break-Glass Access Credential Management System Password and Key Rotation Password Attack Types Password Generator Password Strength Best Practices Password Vaults Passwordless Authentication - Advantages Passwordless Authentication - Implementation Passwordless Explained pt. 1 Passwordless Explained pt. 2 Secrets Management Guide Secrets Vault Zero Standing Privileges (ZSP) Privileged Access Management AI in PAM for Predictive Security Automating PAM Best PAM Solutions 2025 Comparing PAM Solutions Challenges in Cross-Platform PAM Integrating PAM with SIEM KPIs for PAM Least Privilege PAM Best Practices PAM Checklist PAM Enhances Remote Work Security PAM Lifecycle Management PAM Vendors: Must-Have Capabilities for Effective Access Control Privileged Access Management (PAM) Privileged Access Management (PAM) in the Cloud PrivX MFA The Strategic Role of PAM PAM - IT Benefits for Different Industries PAM for Pharmaceuticals Data Security PAM for Healthcare PrivX PA; for Financial Industry Data PrivX PAM for Government and Public Sector PrivX PAM for Healthcare Industry PrivX PAM for Manufacturing PrivX PAM for Media and Entertainment Industry PrivX PAM for Pharmaceutical and Biotechnology Data Privileged Accounts and Sessions Privilege Elevation and Delegation Management Privileged Account PrivX Against Privileged Account Hijacking Privileged Account and Session Management (PASM) Root Accounts Public Key Infrastructure (PKI) What is Public Key Infrastructure (PKI)? PKI Background PKI Certificates X.509 Certificates Secure Information Sharing (SIS) Business Email Compromise (BEC) Business Email Compromise: How to Prevent BEC Attacks Digital Signatures Email Phishing Enterprise Email Security Secure Data Sharing Secure Email Gateways (SEGs) Secure Shell (SSH) What is Secure Shell (SSH)? What is the Secure Shell (SSH) Protocol? Automated M2M Connections Network Monitoring OpenSSH OpenSSH Server Process (SSHD) Port 22 Remote File Copy (RCP) Remote Login (rlogin) Remote Shell (RSH) Secure File Copy (SCP) Session Key Single Sign-On (SSO) Using SSH Agent SSH Command SSH Configuration SSH for Windows SSH Software Downloads SSH Server SSH Server Configuration Tectia SSH Server Telnet WinSCP SSH protocol Vs Microsoft: A Comprehensive Guide Security Orchestration Basics of Security Orchestration Data Loss Prevention (DLP) Security Information and Event Management (SIEM) Security Operations Center (SOC) Security Orchestration, Automation, and Response (SOAR) SFTP & Secure Remote Access File Transfer Protocol (FTP) Clients File Transfer Protocol (FTP) Legacy File Transfer Protocol (FTP) Servers Obsolescent Secure File Transfer Protocol (FTPS) Secure Remote Access (SRA) SSH File Transfer Protocol (SFTP) SSH Clients What are SSH Clients? Tectia SSH Client PuTTY Background PuTTY Download PuTTY for Linux PuTTY for Mac PuTTY for Windows PuTTY for Windows Installation PuTTY Public Keys PuTTYgen for Linux PuTTYgen for Windows SSH Keys A Basic Overview of SSH Keys Authorized Key Authorized Keys File Authorized Keys in OpenSSH CAC and PIV Smartcards Copy ID Passphrase Passphrase Generator Public Key Authentication SSH Host Key SSH Key SSH Key Identities SSH Key Management SSH Key Proliferation SSH Keys for SSO SSH Keygen SSH Tunneling SSH Tunneling SSH Tunneling Example Hacks, Threats & Vulnerabilities BothanSpy & Gyrafalcon Breaches in Operational Technology Breaches Involving Passwords & Credentials GoScanSSH Malware Man-in-the-Middle Prevent Data Exfiltration with PrivX PAM PrivX PAM Against Malware & Ransomware Password Sniffing PuTTY - Secure Download PuTTY is a popular SSH, Telnet, and SFTP client for Windows. It is typically used for remote access to server computers over a network using the SSH protocol. This is the download page.

For more information on PuTTY, see the PuTTY page. For information on SSH (Secure Shell), see here. For information on Telnet, see here. For information on SFTP secure file transfers, see here.

Contents Download PuTTY installation package for Windows Master download site Installation and setup instructions Verifying release signatures Package contents: putty.exe, puttygen.exe, psftp.exe, pscp.exe, pagent.exe Alternatives Server for Windows or other platforms SSH key management needs attention Using telnet is not recommended SFTP file transfer support Screenshots PuTTY terminal window PSFTP command line Use Download PuTTY installation package for Windows Master download site Simon Tatham publishes new PuTTY versions on his personal home page.

Installation and setup instructions Installation instructions for Windows

Setting up public key authentication using PuTTYgen

Verifying release signatures The releases are signed with GPG, using the PuTTY release key.

To verify the signatures, you need the gpg tool. On Debian-based Linux, it can be installed with aptitude install gnupg. On Red Hat 7, it can be installed with yum install gnupg2.

To import the signature key into GPG, use:

gpg --import putty-release-2015.asc To check the signature of a file, use:

gpg --verify For example:

gpg --verify putty-64bit-0.69-installer.msi.gpg putty-64bit-0.69-installer.msi Package contents: putty.exe, puttygen.exe, psftp.exe, pscp.exe, pagent.exe The installation package includes putty.exe, puttygen.exe, psftp.exe, pscp.exe, and pagent.exe.

putty.exe is the main executable for the terminal client. It can also be used standalone, without the installation package, by simply copying the executable to a USB stick and running it on a new machine. This way, the user can carry the executable with them. However, this should not be assumed to provide great security - malware on the machine where it is used can still compromise the software (cf. CIA hacking tool bothanspy) and viruses may get installed on the USB stick whenever it is inserted in a new machine.

puttygen.exe is can be used for generating SSH keys on Windows. See the separate puttygen page on how to create and set up SSH keys with it.

psftp.exe is an SFTP file transfer client. It only works on the command line, and does not support graphically dragging and dropping files between systems. See Tectia SSH if you'd like that functionality.

pscp.exe is a command line SCP client.

pagent.exe is an SSH agent for PuTTY. Keys are first created with puttygen.exe and can then be loaded into pagent for automating logins and for implementing single sign-on.

Alternatives For other SSH clients and comparison, see the SSH clients page. Several more modern alternatives are available.

Server for Windows or other platforms You don't need to worry about a server if you are going to connect to a school or work server. However, if you are planning to use PuTTY to log into your own systems, then you may need to install and enable a server.

Most Linux and Unix systems come with OpenSSH preinstalled. On some distributions, you may need to install the server. On Debian-derived systems, the following will install the server:

sudo aptitude install openssh-server On Red Hat systems, the following will install the server:

sudo yum install openssh-server Depending on the system, you may also need to start the server if you don't want to reboot. The following should work on most systems:

sudo service sshd restart For Windows, the Tectia SSH is a popular choice and comes with commercial support services. It also runs on IBM z/OS mainframes. Unix/Linux are available with support for business-critical applications.

SSH key management needs attention SSH is often used with public key authentication to implement automation and single sign-on.

Public key authentication uses a new kind of access credential, the SSH key, for authentication. It is much more secure than traditional password authentication, especially compared to hard-coded passwords in scripts, but the keys need proper management.

Most organizations with more than a hundred servers have large numbers of SSH keys. Usually, these keys have not been properly managed and audited. An SSH risk assessment is recommended. Organizations should consider deploying key management software to establish proper provisioning, termination, and monitoring for key-based access.

Risks of unmanaged SSH keys include uncontrolled attack spread across the server infrstructure, including to disaster recovery data centers and backup systems. 

Organizations should also be aware of security risks related to SSH port forwarding. It is a technology that has many good uses, but it can also enable unfettered access across firewalls. Employees and attackers can leave tunnels back into the internal network from the public Internet. This particularly affects organizations using cloud computing services.

Using telnet is not recommended In addition to SSH, the PuTTY can be used as a telnet client. Telnet is insecure. Its use is not recommended.

The main problem with telnet is that it transmits all passwords and any transmitted data in the clear. Anyone with access to any computer on the same network can steal user names and passwords that are transmitted. Such password sniffing attacks were very common on the Internet already in the 1990s.

Telnet sessions can also be hijacked in the network. Attackers can inject their own commands into telnet sessions. Protection from such attacks was the main reason why Tatu Ylonen developed SSH as a replacement for telnet in the first place. Use of telnet has not been recommended for 20 years.

SFTP file transfer support File transfer support is implemented as a separate program, PSFTP. It is available only as a command-line tool. There is no graphical user interface for file transfers.

SCP file transfers are supported via the PSCP program. This is also command-line only.

Modern implementations, such as Tectia SSH, have integrated file transfers in the terminal client.

Screenshots PuTTY terminal window PSFTP command line Use  

SSH is a leading defensive cybersecurity company that secures communications between humans, systems, and networks. We specialize in Zero Trust Privileged Access Controls and Quantum Safe Network Security. Our customers include a diverse range of enterprises, from multiple Fortune 500 companies to SMBs across various sectors such as Finance, Retail, Technology, Industrial, Healthcare, and Government. 25% of Fortune 100 companies rely on SSH’s solutions. Recent strategic focus has expanded SSH business to Defence, Critical Infrastructure Operators, Manufacturing OT Security and Public Safety.

Leonardo S.p.A invests 20.0 million EUR in SSH, becoming the largest shareholder of the company. SSH solutions form a Center of Excellence for Zero Trust privileged access management and quantum-safe network encryption in Leonardo - a global industrial group that creates multi-domain technological capabilities in the Aerospace, Defence and Security sector with 17.8 billion EUR revenue in 2024. SSH company’s shares (SSH1V) are listed on Nasdaq Helsinki.

 

Solutions Zero Trust Suite Zero Trust Suite & Entra ID Integration Quantum-Safe Cryptography (QSC) SalaX Secure Collaboration Security Risk Mitigation OT security MSP Security Device Trust Monitoring & Threat Intelligence Credentials & Secrets Management IT Audits & Compliance Products PrivX™ Hybrid PAM PrivX Key Manager Tectia SSH Client/Server™ Tectia™ z/OS Secure Messaging Secure Mail Secure Sign NQX™ Quantum-Safe Services SSH Risk Assessment™ Professional Services Support Resources Careers References Downloads Manuals Events & Webinars Blog Company About us Contact Investors Partners Press Stay on top of the latest in cybersecurity Be the first to know about SSH’s new solutions, product updates, new features, and other SSH news!

Thanks for submitting the form. © Copyright SSH • 2025 • Legal

智能索引记录