SSH Key生成及配置

ssh是一種網路協議，用於計算機之間的加密登入。

個人常用

ssh-keygen -t rsa -f filename -c "[email protected]"

eg: 
ssh-keygen -t rsa -f ~/.ssh/id_rsa.osc -c "[email protected]"

多個key的管理

在.ssh目錄下的config檔案中進行配置

host *.domain.com

identityfile filename
user username
eg:host git.oschina.net
identityfile ~/.ssh/id_rsa.osc
user buff

附：

usage: ssh-keygen [options]

options:
-a generate non-existent host keys for all key types.
-a trials number of trials for screening dh-gex moduli.
-b show bubblebabble digest of key file.
-b bits number of bits in the key to create.
-c comment provide new comment.
-c change comment in private and public key files.
-d pkcs11 download public key from pkcs11 token.
-e export openssh to foreign format key file.
-f hostname find hostname in known hosts file.
-f filename filename of the key file.
-g file generate candidates for dh-gex moduli.
-g use generic dns resource record format.
-h hash names in known_hosts file.
-h generate host certificate instead of a user certificate.
-i key_id key identifier to include in certificate.
-i import foreign format to openssh key file.
-j number screen this number of moduli lines.
-j number start screening moduli at specified line.
-k checkpt write checkpoints to this file.
-k generate a krl file.
-l print the contents of a certificate.
-l show fingerprint of key file.
-m memory amount of memory (mb) to use for generating dh-gex moduli.
-m key_fmt conversion format for -e/-i (pem|pkcs8|rfc4716).
-n phrase provide new passphrase.
-n name,... user/host principal names to include in certificate
-o option specify a certificate option.
-p phrase provide old passphrase.
-p change passphrase of private key file.
-q test whether key(s) are revoked in krl.
-q quiet.
-r hostname remove host from known_hosts file.
-r hostname print dns resource record.
-s start start point (hex) for generating dh-gex moduli.
-s ca_key certify keys with ca key.
-t file screen candidates for dh-gex moduli.
-t type specify type of key to create.
-u update krl rather than creating a new one.
-v from:to specify certificate validity interval.
-v verbose.
-w gen generator to use for generating dh-gex moduli.
-y read private key file and print public key.
-z serial specify a serial number.

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