Linux SSH service operations u

I. Password-based authentication

[email protected] ~]# cat ~/.ssh/known_hosts

Cat:/root/.ssh/known_hosts:no such file or directory

[Email protected] ~]# ls-l ~/-A

Total 14264

Dr-xr-x---. 3 root root 4096 June 26 19:08.

Dr-xr-xr-x. Root root 4096 June 28 17:25.

Drwx-wx-wx. 2 root root 4096 June 14:06 044dir

-rw--w--w-. 1 root root 0 June 14:09 044file

-RW-------. 1 root root 1119 June 8 19:36 Anaconda-ks.cfg

。。。。。。。。。。 # # #没有ssh

[Email protected] ~]# ssh-p22 [email protected] # #ssh-P port number remote host user @ remote host IP

The authenticity of host ' 192.168.21.132 (192.168.21.132) ' can ' t be established.

RSA key fingerprint is 0d:83:2a:1e:5d:e5:b7:1f:bf:9e:65:45:25:7b:77:59.

Is you sure want to continue connecting (yes/no)? yes# #输入yes

warning:permanently added ' 192.168.21.132 ' (RSA) to the list of known hosts.

[email protected] ' s password: # # # # #密码

Last login:tue June 20:14:59 from 192.168.21.1

[Email protected] ~]# Logout

Connection to 192.168.21.132 closed. # #远程主机关闭

[email protected] ~]# Cat ~/.ssh/known_hosts # #当前主机

192.168.21.132 Ssh-rsa aaaab3nzac1yc2eaaaabiwaaaqeatyd5b2bsosmj1d6cbkpotfvrp+zbg1/6mc8po13u+ o5254tnxwcnmrzqehzjrylxyasskbrpv9ogi+r6jx9kxmo40vus5cdjvsq1bxldp3y4a6wrzvgd/ jiseyhosqylo19kedc1pko6utblohdj2tuxmd5dmkk+ hhxvahtt5zngbheljpnhighbxicioptibsraez7rfxssr9tk4aanex46tczb9ph6wkfjgd+iaphlfxfbfcfh1dk3c7g+ xg8rpkd0jzjwwwesltfzdtt0tm0xmjxav0rlolsv5mkjs+hscbsdzl0jkpktijfw1zkr4ccbowwmu7qt9fwsejp9hq==

[Email protected] ~]#

Two. Do not log on to the remote host and execute commands directly on the remote host

[Email protected] ~]# ssh-p22 [email protected]/sbin/ifconfig

[email protected] ' s password:

Eth0 Link encap:ethernet HWaddr 00:0c:29:2c:3d:b3

inet addr:192.168.21.132 bcast:192.168.21.255 mask:255.255.255.0

Three.

(a): 1 2####### Copy File

1. Push push:

[Email protected] ~]# scp-p22/oldboy/b.txt [email protected]:/oldboy

Source (native) destination (remote server)

[email protected] ' s password:

B.txt 100% 0.0kb/s 00:00

[Email protected] ~]#

2. Push Pull:

[Email protected] ~]# scp-p22 [email protected]:/oldboy/newfile/oldboy

Target Source

[email protected] ' s password:

NewFile 100% 0 0.0kb/s 00:00

Two

[Email protected] oldboy]# scp-p22-r/oldboy/[email protected]:/oldboy2 ####### Copy directory parameter-r

[email protected] ' s password:

[Email protected]/]# sftp-oport=22 [email protected]

Connecting to 192.168.21.132 ...

[email protected] ' s password: ###### #密码

Sftp> put A.log # # #拷贝文件 sftp copy file with put

Uploading A.log To/root/a.log

A.log 100% 0.0kb/s 00:00

Sftp>

Three

The client side upload file is uploaded to the server home directory by default

[Email protected] oldboy7]# sftp-oport=22 [email protected]

Connecting to 192.168.21.128 ...

[email protected] ' s password:

Sftp> Put/oldboy7/oldboy7.txt

Uploading/oldboy7/oldboy7.txt To/root/oldboy7.txt

/oldboy7/oldboy7.txt 100% 0.0kb/s 00:00

Client side files can be uploaded to the server specified directory

Sftp> Put/oldboy7/oldboy7.txt/oldboy7

Uploading/oldboy7/oldboy7.txt To/oldboy7/oldboy7.txt

/oldboy7/oldboy7.txt 100% 0.0kb/s 00:00

Sftp>

The file on the client side download server is downloaded to the current directory

sftp> get/oldboy8/oldboy8.txt sftp download file file with get

Fetching/oldboy8/oldboy8.txt to Oldboy8.txt

Sftp> quit

The file on the client side download server is available to specify the download directory

[Email protected]/]# sftp-oport=22 [email protected]

Connecting to 192.168.21.128 ...

[email protected] ' s password:

Sftp> Get/oldboy8/oldboy8.txt/oldboy

Fetching/oldboy8/oldboy8.txt To/oldboy/oldboy8.txt

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Linux SSH service operations u