用scp将主机中的文件复制到虚拟机中的客户机中

Posted 2023-04-11

主机操作系统是ubuntu, 虚拟机中的操作系统也是ubuntu, 如何运用scp命令, 将主机中的文件或文件夹复制到虚拟机的操作系统中. 注意, 只能过scp, 不依靠其他软件, 主机与客户机的ip地址都已知.
我可以在客户机中用scp命令将客户机中的文件复制到虚拟机外的主机中, 但是却无法从主机复制文件到客户机中. 主机的ip是202.201.13.87, 客户机的ip为10.0.2.15. 各位朋友们, 从虚拟机的ip地址可以看出它用的私有地址, 私有地址可以重复使用, 因此除了这台虚拟机外, 网络中还有某台机子的ip地址也是10.0.2.15, 这时候问题来了, 当虚拟机外的主机ping 10.0.2.15时, 它怎么知道这个ip地址是虚拟机中的客户机所有, 还中网络中另外一台机子所有?

scp [-r] sourcefile username@clienthost:/destdirectory

例如拷贝文件test.txt 到客户机/tmp下，客户机IP：192.168.0.2
scp test.txt root@192.168.0.2:/tmp
拷贝test目录到客户机/tmp下：
scp -r test root@192.168.0.2:/tmp
前提是主机能够ssh到客户机追问

换个简单点的说法, 虚拟机中客户机可以ping通虚拟机外的主机, 但是主机ping不通客户机, 这是导致scp不成功的根本原因, 请问这该怎么解决.

追答

检查客户机防火墙设置
主机上执行：traceroute -d 10.0.2.15 查看卡在什么地方

ping到哪个10.0.2.15，是由路由器设置的

参考技术A 看一下是否是主机里面的虚拟网卡被禁用了，如果没问题，检查下防火墙，selinux等是否关闭。

私有地址相同，如果两台机器的ip还能存在，那说明两个ip的网关不一样，不然就是ip冲突，有一台电脑的ip是无效的。 参考技术B 假设两个主机的ip是192.168.1.1和192.168.1.2
scp usr1@192.168.1.1 ：filename1 usr2@192.168.1.2：filename2

输入对应的用户密码就可以完成cp

“我可以在客户机中用scp命令将客户机中的文件复制到虚拟机外的主机中, 但是却无法从主机复制文件到客户机中. 主机的ip是202.201.13.87, 客户机的ip为10.0.2.15”

说明你在客户机上没有运行 sshd服务。追问

我在主机中连ping都ping不通客户机, 应该不是ssh的问题.

参考技术C 你主机无法ping通客户机应该是你搭建虚拟机的时候桥接关系选择不对，换个桥接关系试试

利用docker制作一个带有redis软件的镜像,供其他人使用

1. 宿主机在etc/apt/下创建一个haha的文件夹

2.宿主机将haha文件夹映射到容器的虚拟系统中etc/apt/

3. 此时，可以在宿主机和容器虚拟机中同步创建和删除文件

4. 将宿主机中的source.list文件同步到容器浏览器中。

4.1 更新前容器虚拟机中的更新源

4.2 同步替换后的更新源

4.2.1 宿主机将sources.list拷贝到同步文件夹

4.2.2 容器虚拟机从同步文件夹中将sources.list拷贝到对应位置，覆盖掉原来的sources.list

4.2.3 容器虚拟机更新源

apt-get update

报错：Is the package apt-transport-https installed?

安装：apt-get install apt-transport-https 依然报同样的错

报错：Unable to locate package apt-transport-https

原因：sources.list 问题，换成清华园的sources.list即可，直接更新。

 1 # deb cdrom:[Ubuntu 16.04 LTS _Xenial Xerus_ - Release amd64 (20160420.1)]/ xenial main restricted
 2 deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial main restricted #Added by software-properties
 3 
 4 # See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
 5 # newer versions of the distribution.
 6 deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial main restricted
 7 deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial multiverse universe #Added by software-properties
 8 # deb-src http://us.archive.ubuntu.com/ubuntu/ xenial main restricted
 9 
10 ## Major bug fix updates produced after the final release of the
11 ## distribution.
12 deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates main restricted
13 deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates multiverse restricted universe main #Added by software-properties
14 # deb-src http://us.archive.ubuntu.com/ubuntu/ xenial-updates main restricted
15 
16 ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
17 ## team, and may not be under a free licence. Please satisfy yourself as to
18 ## your rights to use the software. Also, please note that software in
19 ## universe WILL NOT receive any review or updates from the Ubuntu security
20 ## team.
21 deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial universe
22 # deb-src http://us.archive.ubuntu.com/ubuntu/ xenial universe
23 deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates universe
24 # deb-src http://us.archive.ubuntu.com/ubuntu/ xenial-updates universe
25 
26 ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu 
27 ## team, and may not be under a free licence. Please satisfy yourself as to 
28 ## your rights to use the software. Also, please note that software in 
29 ## multiverse WILL NOT receive any review or updates from the Ubuntu
30 ## security team.
31 deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial multiverse
32 # deb-src http://us.archive.ubuntu.com/ubuntu/ xenial multiverse
33 deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates multiverse
34 # deb-src http://us.archive.ubuntu.com/ubuntu/ xenial-updates multiverse
35 
36 ## N.B. software from this repository may not have been tested as
37 ## extensively as that contained in the main release, although it includes
38 ## newer versions of some applications which may provide useful features.
39 ## Also, please note that software in backports WILL NOT receive any review
40 ## or updates from the Ubuntu security team.
41 deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-backports main restricted universe multiverse
42 deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-backports main restricted universe multiverse #Added by software-properties
43 # deb-src http://us.archive.ubuntu.com/ubuntu/ xenial-backports main restricted universe multiverse
44 
45 ## Uncomment the following two lines to add software from Canonical‘s
46 ## ‘partner‘ repository.
47 ## This software is not part of Ubuntu, but is offered by Canonical and the
48 ## respective vendors as a service to Ubuntu users.
49 # deb http://archive.canonical.com/ubuntu xenial partner
50 # deb-src http://archive.canonical.com/ubuntu xenial partner
51 
52 deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-security main restricted
53 deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-security multiverse restricted universe main #Added by software-properties
54 # deb-src http://security.ubuntu.com/ubuntu xenial-security main restricted
55 deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-security universe
56 # deb-src http://security.ubuntu.com/ubuntu xenial-security universe
57 deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-security multiverse
58 # deb-src http://security.ubuntu.com/ubuntu xenial-security multiverse

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apt-get update