节点软件由Tomi Manninen开发，基于最初的PMS程序。它提供了一个相当完整和灵活的节点功能，并且易于配置。它允许用户在连接后进行Telnet、NET/ROM、ROSE和AX.25连接，并获取各种信息，例如Finger、节点和听到列表等。您可以配置节点来执行您希望的任何Linux命令，这非常简单。
节点通常从ax25d程序调用，尽管它也能够从TCP/IP inetd程序调用，以允许用户通过telnet连接到您的机器并访问它，或者通过从命令行运行它。
的node.conf文件是进行节点主要配置的地方。它是一个简单的文本文件，其格式如下
# /etc/ax25/node.conf # configuration file for the node(8) program. # # Lines beginning with '#' are comments and are ignored. # Hostname # Specifies the hostname of the node machine hostname radio.gw.vk2ktj.ampr.org # Local Network # allows you to specify what is consider 'local' for the # purposes of permission checking using nodes.perms. localnet 44.136.8.96/29 # Hide Ports # If specified allows you to make ports invisible to users. The # listed ports will not be listed by the (P)orts command. hiddenports rose netrom # Node Identification. # this will appear in the node prompt NodeId LINUX:VK2KTJ-9 # NET/ROM port # This is the name of the NET/ROM port that will be used for # outgoing NET/ROM connections from the node. NrPort netrom # Node Idle Timeout # Specifies the idle time for connections to this node in seconds. idletimout 1800 # Connection Idle Timeout # Specifies the idle timer for connections made via this node in # seconds. conntimeout 1800 # Reconnect # Specifies whether users should be reconnected to the node # when their remote connections disconnect, or whether they # should be disconnected complete. reconnect on # Command Aliases # Provide a way of making complex node commands simple. alias CONV "telnet vk1xwt.ampr.org 3600" alias BBS "connect radio vk2xsb" # External Command Aliases # Provide a means of executing external commands under the node. # extcmd <cmdname> <flag> <userid> <command> # Flag == 1 is the only implemented function. # <command> is formatted as per ax25d.conf extcmd PMS 1 root /usr/sbin/pms pms -u %U -o VK2KTJ # Logging # Set logging to the system log. 3 is the noisiest, 0 is disabled. loglevel 3 # The escape character # 20 = (Control-T) EscapeChar 20 |
节点允许您为用户分配权限。这些权限允许您确定哪些用户应该被允许使用诸如（T）elnet和（C）onnect命令之类的选项，以及哪些用户不应该。node.perms文件是存储此信息的地方，包含五个关键字段。对于所有字段，星号“*”字符匹配任何内容。这对于构建默认规则很有用。user
method
Method
port
对于AX.25用户，如果您选择，也可以在每个端口的基础上控制权限。这允许您根据AX.25用户连接到您的哪个端口来确定他们被允许做什么。第三个字段包含端口名称（如果您正在使用此功能）。这仅对AX.25连接有用。
密码
| 您可以选择配置节点，以便在用户连接时提示用户输入密码。这可能有助于保护具有高级权限的特殊配置用户。如果设置了第四个字段，则其值将是将被接受的密码。 | Description |
|---|---|
| 1 | permissions |
| 2 | 权限 |
| 4 | 权限字段是文件中每个条目的最后一个字段。权限字段被编码为位字段，每个功能都有一个位值，如果设置，则允许使用该选项；如果未设置，则阻止使用该功能。可控制的功能及其对应的位值列表如下 |
| 8 | Value |
| 16 | 值 |
| 32 | Login allowed. |
| 64 | 允许登录。 |
| 128 | AX.25 (C)onnects allowed. |
允许AX.25 (C)onnect连接。
NET/ROM (C)onnects allowed.允许NET/ROM (C)onnect连接。(T)elnet to local hosts allowed.
# /etc/ax25/node.perms # # The node operator is VK2KTJ, has a password of 'secret' and # is allowed all permissions by all connection methods vk2ktj * * secret 255 # The following users are banned from connecting NOCALL * * * 0 PK232 * * * 0 PMS * * * 0 # INET users are banned from connecting. * inet * * 0 # AX.25, NET/ROM, Local, Host and AMPR users may (C)onnect and (T)elnet # to local and ampr hosts but not to other IP addresses. * ax25 * * 159 * netrom * * 159 * local * * 159 * host * * 159 * ampr * * 159 |
(T)elnet to amprnet (44.0.0.0) hosts allowed.允许(T)elnet连接到amprnet (44.0.0.0)主机。(T)elnet to non-local, non-amprnet hosts allowed.允许(T)elnet连接到非本地、非amprnet主机。Hidden ports allowed for AX.25 (C)onnects.允许(T)elnet连接到amprnet (44.0.0.0)主机。文件
[vk2ktj-1 via radio] default * * * * * 0 root /usr/sbin/node node |
允许AX.25 (C)onnect连接的隐藏端口。允许(T)elnet连接到非本地、非amprnet主机。ROSE (C)onnects allowed.允许ROSE (C)onnect连接。要为规则编码权限值，只需将您希望用户拥有的每个权限的值加在一起。结果数字就是您放在第五个字段中的内容。
一个示例
nodes.perms
nodes.permsmight look like可能看起来像
node 3694/tcp #OH2BNS's node software |
13.3. Configuring node to run from ax25d13.3. 配置节点从ax25d运行可能看起来像
node stream tcp nowait root /usr/sbin/node node |
节点程序通常由ax25d程序运行。要做到这一点，您需要将适当的规则添加到
| 上一页 | /etc/ax25/ax25d.conf | 下一页 |
| 文件中。在我的配置中，我希望用户可以选择连接到节点或连接到其他服务。ax25d允许您通过巧妙地创建端口别名来实现这一点。例如，给定上面介绍的ax25d配置，我想配置节点，以便所有连接到 | VK2KTJ-1 |