基于SSH的Linux间的文件共享

每次都scp还是很麻烦，而且scp不是很方便，效率不高。
NFS不错，把远程mount到本地，但需要配置server，太懒，能省则省。
一个实验室内，经常需要不同人之间文件交流，总不能要其他电脑都配置成server, 明显很麻烦。

最后发现sshfs不错，解决以上问题，只要ssh登录即可实现挂载到本地使用，方便又省心。

# aptitab intab sshfs
这样，安装完，可以用了。

$ sshfs alyan@192.168.0.123: /home/alyan   mnt
这样，把alyan在123上的主目录整个挂载到当前mnt目录，如同本地磁盘。
sshfs是好东西，完工。

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另外，使用ssh(scp, sshfs, ssh) ，每次都有敲密码太麻烦了， 使用ssh证书登录省去
输密码的麻烦：
(by nnaabbcc)

nnaabbcc@debian-nnaabbcc:~/.ssh$ ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/nnaabbcc/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/nnaabbcc/.ssh/id_rsa.
Your public key has been saved in /home/nnaabbcc/.ssh/id_rsa.pub.
The key fingerprint is:
8a:61:9b:55:0b:fc:df:87:c7:a4:a6:40:2d:f8:8b:86 nnaabbcc@debian-nnaabbcc
The key's randomart image is:
+--[ RSA 2048]----+
|                 |
|     .           |
|      o .        |
|       = o       |
|    o o S .   .  |
|   . * + o . =   |
|    +.. o . = +  |
|    E .. o o o   |
|     .. . .      |
+-----------------+
nnaabbcc@debian-nnaabbcc:~/.ssh$ ls
id_rsa  id_rsa.pub  known_hosts
其中询问一律直接回车，将生成的公钥id_rsa.pub提交到远程服务器
nnaabbcc@debian-nnaabbcc:~/.ssh$ ssh-copy-id -i id_rsa.pub nnaabbcc@192.168.0.123
nnaabbcc@192.168.0.123's password:
Now try logging into the machine, with "ssh 'nnaabbcc@192.168.0.123'", and
check in:

  .ssh/authorized_keys

to make sure we haven't added extra keys that you weren't expecting.
登录远程服务器
nnaabbcc@debian-nnaabbcc:~/.ssh$ ssh nnaabbcc@192.168.0.123
Linux optlab 2.6.26-2-686 #1 SMP Sat Oct 17 17:59:23 UTC 2009 i686

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
No mail.
Last login: Sat Oct 31 16:51:50 2009 from 192.168.0.115
OK,不需要敲入密码可以直接登录了。