Mac OS X includes a command-line SSH client as part of the operating system. How To Get SSH Client SoftwareUsing the built-in SSH client in Mac OS X. In SCS, we use the OpenSSH implementation of the SSH protocol suite. Additionally, SSH supports a range of features including tunneling arbitrary TCP ports and X11 connections. SSH is typically used to log into a remote machine and execute commands or to perform secure file transfer using the associated SFTP or SCP protocols.
![]() ![]() ![]() Putty Ssh Client Mac OS X IncludesFor more information on Kerberos credentials and authentication, visit the page on Kerberos. (Optional) Save your session configuration under Session using the Saved Sessions dialogDepending on your Kerberos configuration, you may be prompted for credentials upon connecting. (Optional) Turn on X11 forwarding under Connection > SSH > X11 (Optional) Enable credential delegation under Connection > SSH > Auth > GSSAPI Make a frequency chart in excel for macTips & Tricks SSH KeysSSH supports public key authentication as an alternative to password-based authentication. Use a command like this to transfer a file on the local computer to a remote host via SCP: pscp the PuTTY documentation for more information about plink and pscp usage. It has a similar syntax to the command-line scp Linux client. To run a single command on a remote host, run a command like this: plink For example, to run the date command on linux.gp.cs.cmu.edu as the user example: plink dateCopy Files Between Two Hosts The pscp command-line client comes as part of the complete PuTTY distribution. It has a similar syntax to the command-line ssh Linux client. This includes using a different key for a particular remote host. Managing SSH keys for multiple hostsThe SSH configuration file on your local computer lets you provide default SSH options when connecting to remote hosts. You will be prompted for the passphrase for the private key, if you set one. Ssh-copy-id attempts to SSH to this remote host will first attempt to use the public key for authentication, rather than your password. SCS users may wish to explore using public key authentication for connecting to or from computers that do not use the SCS Kerberos configuration.A strong SSH key pair can be generated by running the following command ssh-keygen -t rsa -b 4096 -C "By default, this will create a key in ~/.ssh/id_rsa.pub.The public key can be transferred to a remote host using the ssh-copy-id command. SSH keys created without a passphrase should be stored in a secure location and should not be stored in a networked file system like AFS or NFS. This is also commonly referred to as SSH port forwarding and is useful in order to provide SSH encryption for traffic that would otherwise go over the network in the clear.See this article on How to Use SSH Tunneling to Access Restricted Servers and Browse Securely for more information on the possibilities provided by SSH tunneling. SSH TunnelingSSH supports the setup of encrypted tunnels between a specific port on your local machine and a specific port on a remote host.
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