服务器端配置

OS: Debian-6.0.5

#apt-get install ssh 安装ssh服务

编辑/etc/ssh/sshd_config配置文件

Port 3322 #修改端口为3322（自定义）

PermitRootLogin no #禁止root用户远程登录

PubkeyAuthertication yes #允许用key登录

PasswordAuthertication no #禁止远程ssh客户端用密码登录

iptables设置 开启3322端口允许访问

iptables -I INPUT -p tcp --dport 3220 -j ACCEPT

方法一：管理员在服务器端为普通用户生成key

(若无用户，先新建用户。debian用adduser)

如为用户名为fengzhige生成ssh key，

adduser fengzhige #添加用户

su - fengzhige #用fengzhige用户登录

用ssh-keygen生成key

ssh-keygen -t rsa #生成RSA类型的key

root@debian-2:~# su - fengzhige

fengzhige@debian-2:~$ pwd

/home/fengzhige

fengzhige@debian-2:~$ ssh-keygen -t rsa

Generating public/private rsa key pair. Enter file in which to save the key (/home/fengzhige/.ssh/id_rsa): fengzhige-key

Enter passphrase (empty for no passphrase):

Enter same passphrase again: Your identification has been saved in fengzhige-key.

Your public key has been saved in fengzhige-key.pub. The key fingerprint is: f1:f5:5c:59:aa:4d:7d:b2:9a:56:c8:bc:50:8b:87:80

fengzhige@debian-2 The key's randomart image is:

+--[ RSA 2048]----+

| .|

| . oo|

| E o o +.+|

| + B O +.|

| S = B * |

| o = |

| = |

| . |

| |

+-----------------+

fengzhige@debian-2:~$

对公钥设置一下

debian 下的ssh-keygen生成的key会在当前目录下：

（fengzhige-key 私 fengzhige-key.pub 公）

cd /home/fengzhige

cd .ssh #可新建.ssh目录，公钥放在这里

cat id_key.pub >> authorized_keys #改为指定的文件名authorized_keys

把私钥保存到有SecureCRT的客户端上。

连接：

本文出自 “枫之歌” 博客