ssh command linux remote login, its default port: 22, at work this out often modify the default port values.
Scp commands for remote file copy of each other.
scp remote file copy :
[Root @ jerry a] #ls # following files in a directory
2.txt 3.txt 4.txt 5.txt 1.txt
[Jerry the root @ A] #scp 192.168.27.128:/root/a/test.txt. # Copy another document into the current host test.txt Contents
of The Authenticity of Host '192.168.27.128 (192.168.27.128)' Not CAN BE ESTABLISHED.
the ECDSA Key Fingerprint IS. 17:. 5A: 69: DB: E5: ab &: 6C: 35: FB: A6: F2: 4C: C8 : bc: D3:. c2
Are you the Sure you want to Connecting the Continue (yes / NO)? yes
Warning:. Permanently added '192.168.27.128' (ECDSA) to List of Known hosts at The
[email protected]'s password: # require a password to another host
100% 0 0.0KB / S 00:00 test.txt
[Jerry the root @ a] #ls
1.txt 2.txt 3.txt 4.txt 5.txt test.txt
If you want to copy the file is a directory, you need to add the -r option, but can also go on another host or upload files from the current directory Host:
[Jerry the root @ A] #mkdir Test
[Jerry the root @ A] #ls
1.txt 2.txt 3.txt 4.txt 5.txt Test test.txt
[Jerry the root @ A] -R & lt #scp Test 192.168.27.128 : / root / b # copies the current test directory to another host / root / b in
[email protected]'s password: # password another host
[root @ jerry a] #
Check in on another host:
root@jerry b]#ls
test
ssh remote login-free secret:
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:
35:ab:4f:5f:60:f6:e5:a3:14:56:82:1e:5c:29:87:96 root@jerry
The key's randomart image is:
+--[ RSA 2048]----+
| o.. |
| .Eoo |
| ++o. . |
| ..o. o |
| S ..+o .|
| . o.o.o |
| . . .o..|
| o .... .|
| . .. |
+-----------------+
[root@jerry b]#ssh-copy-id 192.168.27.129 #发送公钥到另一端
The authenticity of host '192.168.27.129 (192.168.27.129)' can't be established.
ECDSA key fingerprint is c0:d8:9b:d9:05:37:51:4e:42:16:1c:a2:17:6c:5a:b7.
Are you sure you want to continue connecting (yes/no)? yes
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
[email protected]'s password: #另一台主机的密码
and check to make sure that only the key(s) you wanted were added.
Last Login: Tue Jul-2019 19:48:11 from 2 192.168.27.1
[Jerry the root @ ~] A #ip
. 1: LO: <the LOOPBACK, the UP, LOWER_UP> UNKNOWN MTU 65536 qdisc allows users to noqueue State of qlen. 1
Link / Loopback 00: 00: 00: 00: 00: 00 brd 00: 00: 00: 00: 00: 00
inet 127.0.0.1/8 scope Host LO
Forever Forever preferred_lft valid_lft
inet6 :: a 1/128 scope Host
valid_lft preferred_lft Forever Forever
2: ens33: <BROADCAST, the MULTICAST, the UP, LOWER_UP> 1500 qdisc allows users to pfifo_fast MTU 1000 State of qlen the UP
Link / ether 00: 0c: 29: C2: 9E: brd FF 7E: FF: FF: FF: FF: FF
inet 192.168.27.129/ 24-brd 192.168.27.255 scope, Ltd. Free Join ens33
valid_lft forever preferred_lft forever
inet6 fe80::20c:29ff:fec2:9e7e/64 scope link
valid_lft forever preferred_lft forever
3: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN qlen 1000
link/ether 52:54:00:d9:3d:91 brd ff:ff:ff:ff:ff:ff
inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
valid_lft forever preferred_lft forever
4: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN qlen 1000
link/ether 52:54:00:d9:3d:91 brd ff:ff:ff:ff:ff:ff
authorized_keys known_hosts
After login you can achieve free secret secret remote free copy:
1.txt 100% 0 0.0KB/s 00:00
2.txt 100% 0 0.0KB/s 00:00
3.txt 100% 0 0.0KB/s 00:00
4.txt 100% 0 0.0KB/s 00:00
5.txt 100% 0 0.0KB/s 00:00
test.txt 100% 0 0.0KB/s 00:00