无法访问 samba 服务器

Question

我无法连接到运行 CentOS 6.4（最小安装）的 samba 服务器，该服务器不在我的网络内。

当我尝试连接 Windows 7 客户端时，连接失败，并显示默认的“无法访问”对话框。

到目前为止我尝试过的：

• 在我的 samba 服务器上打开端口 137、138、139、445
• 使用 nmap（在 samba 服务器上）验证端口是否打开
• 尝试从我的客户端远程登录上述端口，但连接也失败
• 重新安装samba并重新配置服务
• 暂时关闭 SELinux

iptables

# iptables -L
Chain INPUT (policy ACCEPT)
target     prot opt source               destination
ACCEPT     all  --  anywhere             anywhere            state RELATED,ESTABLISHED
ACCEPT     icmp --  anywhere             anywhere
ACCEPT     all  --  anywhere             anywhere
ACCEPT     all  --  anywhere             anywhere
ACCEPT     tcp  --  anywhere             anywhere            state NEW tcp dpt:ssh
ACCEPT     tcp  --  anywhere             anywhere            state NEW tcp dpt:http
ACCEPT     tcp  --  anywhere             anywhere            state NEW tcp dpt:https
ACCEPT     udp  --  anywhere             anywhere            state NEW udp dpt:netbios-ns
ACCEPT     udp  --  anywhere             anywhere            state NEW udp dpt:netbios-dgm
ACCEPT     tcp  --  anywhere             anywhere            state NEW tcp dpt:netbios-ssn
ACCEPT     tcp  --  anywhere             anywhere            state NEW tcp dpt:microsoft-ds
REJECT     all  --  anywhere             anywhere            reject-with icmp-host-prohibited

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination
ACCEPT     all  --  anywhere             anywhere            state RELATED,ESTABLISHED
ACCEPT     icmp --  anywhere             anywhere
ACCEPT     all  --  anywhere             anywhere
ACCEPT     all  --  anywhere             anywhere
REJECT     all  --  anywhere             anywhere            reject-with icmp-host-prohibited

地图

#nmap -sTU -O localhost

Starting Nmap 5.51 ( http://nmap.org ) at 2014-05-16 17:29 CEST
Nmap scan report for localhost (127.0.0.1)
Host is up (0.000042s latency).
Other addresses for localhost (not scanned): 127.0.0.1
Not shown: 1994 closed ports
PORT    STATE         SERVICE
22/tcp  open          ssh
25/tcp  open          smtp
80/tcp  open          http
139/tcp open          netbios-ssn
445/tcp open          microsoft-ds
68/udp  open|filtered dhcpc

桑巴版

#smbd --version
Version 3.6.9-168.el6_5

工作组在 smb.conf 中设置正确，nmb 正在运行。

Answer 1

大多数 ISP 都会过滤 netbios 端口。如果您从 Windows 客户端进行 nmap，您可能会看到该端口被列出，filtered因为您的 ISP 阻止了它。

尝试配置隧道协议，例如openvpn并尝试使用此设置。