ssh “id_rsa 、id_rsa.pub、known_hosts”替换中出现的问题

【1】将已有的key放在你home目录的.ssh里面 
        keychain --eval ~/.ssh/id_rsa   运行这个命令
        eval `keychain --eval ~/.ssh/id_rsa`   输入后,需要输入一个密码  rd

【2】之前替换了一次id_rsa 、id_rsa.pub、known_hosts,然后再去git clone的时候就会出现输入密码有误;替换成备份的id_rsa 、id_rsa.pub、known_hosts之后 出现以下错误:
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@  
@         WARNING: UNPROTECTED PRIVATE KEY FILE!          @  
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@  
Permissions 0644 for '/home/robin/.ssh/id_rsa' are too open.  
It is recommended that your private key files are NOT accessible by others.  
This private key will be ignored.  
bad permissions: ignore key: /home/rd4/.ssh/id_rsa 

上面的问题就是这三个文件的权限不对!
解决方案 :
chmod 755 ~/.ssh/  
chmod 600 ~/.ssh/id_rsa ~/.ssh/id_rsa.pub   
chmod 644 ~/.ssh/known_hosts 

【3】之后需要输入命令:eval `keychain --eval ~/.ssh/id_rsa`   回车后,需要输入一个密码   这样就可以了

git@github.com$ ssh -T -vvv git@github.com OpenSSH_9.9p1, OpenSSL 3.2.4 11 Feb 2025 debug1: Reading configuration data /c/Users/SW0122/.ssh/config debug1: Reading configuration data /etc/ssh/ssh_config debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts' -> '/c/Users/SW0122/.ssh/known_hosts' debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts2' -> '/c/Users/SW0122/.ssh/known_hosts2' debug2: resolving "github.com" port 22 debug3: resolve_host: lookup github.com:22 debug3: channel_clear_timeouts: clearing debug3: ssh_connect_direct: entering debug1: Connecting to github.com [20.205.243.166] port 22. debug3: set_sock_tos: set socket 4 IP_TOS 0x48 debug1: Connection established. debug1: identity file /c/Users/SW0122/.ssh/id_rsa type 0 debug1: identity file /c/Users/SW0122/.ssh/id_rsa-cert type -1 debug1: identity file /c/Users/SW0122/.ssh/id_ecdsa type -1 debug1: identity file /c/Users/SW0122/.ssh/id_ecdsa-cert type -1 debug1: identity file /c/Users/SW0122/.ssh/id_ecdsa_sk type -1 debug1: identity file /c/Users/SW0122/.ssh/id_ecdsa_sk-cert type -1 debug1: identity file /c/Users/SW0122/.ssh/id_ed25519 type -1 debug1: identity file /c/Users/SW0122/.ssh/id_ed25519-cert type -1 debug1: identity file /c/Users/SW0122/.ssh/id_ed25519_sk type -1 debug1: identity file /c/Users/SW0122/.ssh/id_ed25519_sk-cert type -1 debug1: identity file /c/Users/SW0122/.ssh/id_xmss type -1 debug1: identity file /c/Users/SW0122/.ssh/id_xmss-cert type -1 debug1: Local version string SSH-2.0-OpenSSH_9.9 debug1: Remote protocol version 2.0, remote software version 6fdec156f debug1: compat_banner: no match: 6fdec156f debug2: fd 4 setting O_NONBLOCK debug1: Authenticating to github.com:22 as 'git' debug3: record_hostkey: found key type ED25519 in file /c/Users/SW0122/.ssh/known_hosts:1 debug3: load_hostkeys_file: loaded 1 keys from github.com debug1: load_hostkeys: fopen /c/Users/SW0122/.ssh/known_hosts2: No such file or directory debug1: load_hostkeys: fopen /e: Permission denied (publickey).
04-03
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