Contents. Download PuTTY installation package for Windows Binary Platform Signature Date Windows (any) 2017-07-08 Windows (64-bit) 2017-07-08 Installation and setup instructions. Verifying release signatures The releases are signed with, using the. 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. ) 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 on how to create and set up SSH keys with it. Psftp.exe is an file transfer client. It only works on the command line, and does not support graphically dragging and dropping files between systems. See if you'd like that functionality. Pscp.exe is a command line 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.
The PuTTY is open-source and free to download software which provides an easy way to access a Unix shell environment from a windows system.
Alternatives For other SSH clients and comparison, see the 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 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 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 to implement automation and single sign-on.
Public key authentication uses a new kind of access credential, the, 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 is recommended.
Organizations should consider deploying 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. It could potentially.
Organizations should also be aware of security risks related to. 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 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.
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Such attacks were very common on the Internet already in the 1990s. Telnet sessions can also be in the network. Attackers can inject their own commands into telnet sessions. Protection from such attacks was the main reason why 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. Are supported via the PSCP program. This is also command-line only. Modern implementations, such as, have integrated file transers in the terminal client. Master download site Simon Tatham publishes new PuTTY versions on. The files are mirrored here at ssh.com.
If you notice any issues or the version hasn't been updated properly, please drop an email to ylo at ssh.com. Please note that I do not provide support services for PuTTY. I merely maintain this mirror to have a single place for downloading popular SSH versions. Screenshots PuTTY terminal window PSFTP command line Use. What to read next:.
Reduce Secure Shell risk. Get to know the NIST 7966. The NISTIR 7966 guideline from the Computer Security Division of NIST is a direct call to action for organizations regardless of industry and is a mandate for the US Federal government. ISACA Practitioner Guide for SSH With contributions from practitioners, specialists and SSH.COM experts, the ISACA “SSH: Practitioner Considerations” guide is vital best practice from the compliance and audit community.
What we recommend to read next:. Regulatory compliance for cybersecurity?. Privileged access management related information.