How do I create a ssh key with a specific name on linux?
addaxnasom last edited by addaxnasom
ssh-keygen(1) — authentication key generation, management and conversion
Note: The passphrase should be cryptographically strong.
-t dsa | ecdsa | ed25519 | rsa Specifies the type of key to create. The possible values are “dsa”, “ecdsa”, “ed25519”, or “rsa”. -f filename Specifies the filename of the key file. -b bits Specifies the number of bits in the key to create. For RSA keys, the minimum size is 1024 bits and the default is 2048 bits. Gen‐ erally, 2048 bits is considered sufficient. DSA keys must be exactly 1024 bits as specified by FIPS 186-2. For ECDSA keys, the -b flag determines the key length by selecting from one of three elliptic curve sizes: 256, 384 or 521 bits. Attempting to use bit lengths other than these three values for ECDSA keys will fail. Ed25519 keys have a fixed length and the -b flag will be ignored.
The default file name for RSA algorithm is
$ ssh-keygen -t rsa -b 4096 -f ~/.ssh/training.id_rsa Generating public/private rsa key pair. Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /home/training/.ssh/training.id_rsa. Your public key has been saved in /home/training/.ssh/training.id_rsa.pub. The key fingerprint is: SHA256:YKHv33XSuhLTBecHVaDSPQWQQ4l46eh6T4VSbMWIICc [email protected] The key's randomart image is: +---[RSA 4096]----+ | E o. o.O++.| | . = oo*=* | | . o .=*.+. | | o .. +++. o | | . S+.+. . | | . +.oo | | . . ++ o | | ...oo + | | ...o+. | +----[SHA256]-----+
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