## SSH 版本查询
[root@localhost .ssh]# ssh -V
OpenSSH_7.4p1,OpenSSL 1.0.2k-fips 26 Jan 2017
##新生成密钥
> ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:vmguq2 TYSRdUlPfnlS76bOW Oi9C/t KGs/Y1mL/ZQ root@localhost.localdomain
The key's randomart image is:
---[RSA 2048]----
| .o.. . |
| . .. . . . . |
| . o . o . |
| . o o . o |
| o S o o |
| o . . o|
| . o . ..=Eo|
| = .. . *O*.|
| . o*o . o=XX*o|
----[SHA256]-----
## 查看生成文件
id_rsa是私钥文件，id_rsa.pub是公钥文件
> [root@localhost .ssh]# ll
总用量 12
-rw-r--r--. 1 root root 398 9月 24 11:12 authorized_keys
-rw-------. 1 root root 1675 9月 24 11:48 id_rsa
-rw-r--r--. 1 root root 408 9月 24 11:48 id_rsa.pub
[root@localhost .ssh]# cat id_rsa
-----BEGIN RSA PRIVATE KEY-----
MIIEogIBAAKCAQEAnrYx94W1iHWnMoGuTT9Bl67kr5ngBdfJT6Rm/qRPaJMjQUjR
aIKYnhscy8zetH1nBCKhsT3uHz33UX6giKlNSUV5/5gqx5O/gdvtoGT8bXQJ1Aob
V5F0RDeZDQY35VfomTOBjEm7hiIP91oUjucgq1FRPZ9XGSF0o8WPaAVp3HvloZtn
yP6qN0ZJ7fXQVHxDtIozkqK5SxnJyb60TI/DjXgw9z Sed0IgnyXNi26YJdZzgAJ
zson2w9BCAShBGlK78nnWgeLgae4w7JyhkK7mFmOmnNbaBXoGhkH4IVydfCblrb9
iStQzrnCVGsCz8JLgrd0rocAuzZUML7mG459IwIDAQABAoIBAA06NhPhCu4ikBq/
gB1kBj10EA8qjecuwtJma0cRvqSCjs kF//T0pBqxg2eN3lnciyADmXNOYlVCsW5
/fsl0REoPzC0J yWPcG 6KETiY49u4v2g6zarIv67kCNoh71IqeSCVv90SkusZH1
6fy2 pwMnO671vB7P1Ne5cLPoLEFaNZQba/FnAGYFHTF9TLA2w/ZToIXFJcdRVUz
cnSk6Ws6hEsWh 2Yqgbcgt4kXoMAIfD67rjZRSo9qpeh0pm4hIQ/XBkPlZxiDHyb
Os6hEY5EMwoimx7kvP2GjOhl9HFn7yC1MH jbmptYal8kd5Z3VNRVjmXusqNbNKp
JBb24QECgYEAy1o6IHm3yzEDXjGdhH2x763sU9cqqQYovorEoVO0vS EH4RJMWAd
EvJs8wG/uaLqNnWDrs2n/PE2JmRJIGnqvezIYsOg5gmvcrmj447u4HEMRtp9L 3
M0uk2/Yrq9K898Y5aKlOIRxkIqy0SW5cBEDTbvxOFGx7AZEMNuMOFuMCgYEAx81F
6CfYjSJhAjFnq7NCynp11LMNQ3EBVV7/tuqjD1v85ukIzFTeG8QIBAFLKn4j1OWv
8nZ4iJUi/6okpC7 0zVOV 1b5ML RJ6iG0/1vmidvZAFH7iX5GnM0/G3MZ HOswR
6cNG674nsATJCIvgJ1SzfLNZbq9FtcuRvz68lMECgYBj4Zd3aBGsjhB3batO7mY9
sZHIxIDBsLLGlGZsTy8RVYtx54oD5JAT6zXRSD PaDHk58pKRg5YlmVzdkpiQgTW
5v9nVGP2ov80bbq9fEE okh5TlvGyXv0iA0btVhR9xq2IPkFvVMQ1F8i4O1UvA4a
ULUJaIf5ZCcu5822D RVvQKBgFvmTwE5UqGX7obTspuHGHGJYikzMiaTE8nwqC26
PsYRyYFsLl/NqVucDxPIhIpG rQx8XvUghxQfIib b6K3yrGmgJXaq0OA2YMkQN/
A8lQ1T0bwT V6EdnYo8Z3uk0Nz8UHiknaLeF/zs2 EC2FaQBkY0J8Vi3xZiYybDt
alABAoGANwUTxd9w6Gowdg1eW89xXoUgd6kYDPuoAZ2bnixBDrz9eehPL9kQy4sL
fJdC2mIMD3uO8CU6BjK0MrTI7I3d//Uw e6ce3xeYzxEYtFxnhfyac1cjqPraTgB
sEBy jLC5o2NoP T42H4ivQU1VQ07WySP3LfT3ur4RVibCNwCa4=
-----END RSA PRIVATE KEY-----
> [root@localhost .ssh]# cat id_rsa.pub
ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCetjH3hbWIdacyga5NP0GXruSvmeAF18lPpGb pE9okyNBSNFogpieGxzLzN60fWcEIqGxPe4fPfdRfqCIqU1JRXn/mCrHk7 B2 2gZPxtdAnUChtXkXREN5kNBjflV iZM4GMSbuGIg/3WhSO5yCrUVE9n1cZIXSjxY9oBWnce Whm2fI/qo3Rknt9dBUfEO0ijOSorlLGcnJvrRMj8ONeDD3P5J53QiCfJc2Lbpgl1nOAAnOyifbD0EIBKEEaUrvyedaB4uBp7jDsnKGQruYWY6ac1toFegaGQfghXJ18JuWtv2JK1DOucJUawLPwkuCt3SuhwC7NlQwvuYbjn0j root@localhost.localdomain
## 添加公钥authorized_keys文件
cat id_rsa.pub >> authorized_keys
### 使用ssh 远程登录操作
> ssh centos@192.168.1.147
### window下，远程登录操作
C:\Users\bx>ssh centos@192.168.1.147 -i/c:/users/bx/.ssh/centos/rsa-key.pem
Last login: Wed Sep 29 08:34:31from 192.168.1.249
## windows scp 上传文件
$ scp -i/c:/users/bx/.ssh/root/rsa-key.pem fisco-bcos-logo.3a5e45c.png root@119.23.55.96:/root/fisco/fisco-bcos-browser/deploy/web/static/img
### centos 不能修改/home/centos目录
1.更改所有者:
> chown -R 用户 目录
eg.
> chown -R centos /home/centos
2.更改权限:
> chmod -R 755 目录