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SSH :连接到主机localhost端口22：拒绝连接。
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在debian kali中，我试图连接ssh，得到以下错误：
SSH: connect to host localhost port 22: Connection refused
Background :
我试图在debian中连接ssh，我使用kali 2.0 sana
我已经尝试/做了什么。
`apt-get install openssh-server`
安装了openssh-server，并且是最新的
查询服务 ssh status
● ssh.service - OpenBSD Secure Shell server
Loaded: loaded (/lib/systemd/system/ssh.service; enabled)
Active: active (running) since Wed 2015-09-23 17:20:36 IST; 36min ago
Main PID: 1594 (sshd)
CGroup: /system.slice/ssh.service
└─1594 /usr/sbin/sshd -D
重新配置 dpkg-reconfigure openssh-server，也成功了
现在我尝试连接 ssh root@localhost，它需要 root@localhost 密码，所以我做的是
vi /etc/ssh/sshd_config 并添加了拒绝 root 登录的命令。
我的sshd_config如下。
What ports, IPs and protocols we listen for Port 22
#Use these options to restrict which interfaces/protocols sshd will bind to
#ListenAddress ::
#ListenAddress 0.0.0.0 Protocol 2
# HostKeys for protocol version 2 HostKey /etc/ssh/ssh_host_rsa_key HostKey /etc/ssh/ssh_host_dsa_key HostKey /etc/ssh/ssh_host_ecdsa_key HostKey /etc/ssh/ssh_host_ed25519_key
#Privilege Separation is turned on for security UsePrivilegeSeparation yes
现在再次尝试通过'ssh root@localhost´连接ssh，但我得到connect to host localhost port 22: Connection refused
我想我的iptables可能会阻止它，所以把它配置为……。
vim /root/firewall.rules
root@vignesh:~# iptables-save > /root/firewall.rules
root@vignesh:~# iptables -X
root@vignesh:~# iptables -t nat -F
root@vignesh:~# iptables -t nat -X
root@vignesh:~# iptables -t mangle -F
root@vignesh:~# iptables -t mangle -X
root@vignesh:~# iptables -P INPUT ACCEPT
root@vignesh:~# iptables -P FORWARD ACCEPT
root@vignesh:~# iptables -P OUTPUT ACCEPT
root@vignesh:~# iptables-save > /root/firewall.rules
然后我查询了iptables-save
# Generated by iptables-save v1.4.21 on Wed Sep 23 18:50:34 2015
*mangle
:PREROUTING ACCEPT [41217:4171959]
:INPUT ACCEPT [27727:3255690]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [1834:219528]
:POSTROUTING ACCEPT [1835:219654]
COMMIT
# Completed on Wed Sep 23 18:50:34 2015
# Generated by iptables-save v1.4.21 on Wed Sep 23 18:50:34 2015
*nat
:PREROUTING ACCEPT [15456:1179155]
:INPUT ACCEPT [1858:255303]
:OUTPUT ACCEPT [223:14078]
:POSTROUTING ACCEPT [223:14078]
COMMIT
# Completed on Wed Sep 23 18:50:34 2015
# Generated by iptables-save v1.4.21 on Wed Sep 23 18:50:34 2015
*filter
:INPUT ACCEPT [26756:3173280]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [1775:215770]
COMMIT
根据评论检查了
root@vignesh:~# netstat -an | grep 22
tcp 0 0 10.100.8.40:54036 216.58.220.46:80 ESTABLISHED
tcp 0 0 10.100.8.40:41573 216.58.220.14:80 ESTABLISHED
unix 3 [] STREAM CONNECTED 17722 @/tmp/dbus-JUNz9GwSon
unix 3 [] STREAM CONNECTED 13422
unix 3 [] STREAM CONNECTED 17224
unix 3 [] STREAM CONNECTED 17422
unix 2 [] DGRAM 9222
unix 3 [] STREAM CONNECTED 17221 /var/run/NetworkManager/private
unix 3 [] STREAM CONNECTED 17225 /var/run/NetworkManager/private
unix 3 [] STREAM CONNECTED 17229
unix 3 [] STREAM CONNECTED 17220
现在我又尝试了ssh root@localhost 但又得到了错误。
请指导我，我在哪里丢失了部分？我如何才能把它连接起来？