https://stackoverflow.com/questions/21716673/port-forwarding-with-xinetd

------------------------------------------------------------------------------------------------------------------------------------

I want to forward xinetd connection to another local port (say 12345). I based my solution on CentOS/Redhat documentation Chapter 17. TCP Wrappers and xinetd, article 17.4.3.3. In the example the configuration starts a daemon and also redirects the traffic to a host:port. The doco say it should be able to forward to different port on the same system too.

My current goal is to starts a daemon (say testsmpp) at any connection on port 12345 and redirect the stream to a particular port (say 54321). The tricky bit is I don't want the daemon (testsmpp) to read from STDIN, instead it should be able to read from the port where the xinetd is forwarding the traffic to.

I created a service under /etc/service e.g

testsmpp    12345/tcp

And my xinetd configuration for the daemon is

service testsmpp
{
sock_type = stream
protocol = tcp
wait = no
user = root
server = /home/me/bin/testsmpp
redirect = 54321
}

testsmpp listens on port 54321. The problem is when a connection made from outside, xinetd starts the daemon but do not forward the traffic to 54321. Once the server started I can connect directly to 54321 port but the connection made via xinetd (at port 12345) is not forwarded.

Is server and redirect tags are mutually exclusive? I looked at the discussion about xinet forking concurrent server but my motivation are slightly different. I want to listen for incoming connection on another port as the other application will communicate with the daemon on that port too in a distributed computing environment.

Any clues much appreciated.

Port forwarding with xinetd Ask的更多相关文章

  1. How To Set Up Port Forwarding in Linux

    Port forwarding usually used when we want our computer act like a router. Our computer receive the p ...

  2. Port Forwarding in Windows

    转自:http://woshub.com/port-forwarding-in-windows/ Since Windows XP there is a built-in ability in Mic ...

  3. NAT&Port Forwarding&Port Triggering

    NAT     Nat,网络地址转换协议.主要功能是实现局域网内的本地主机与外网通信.     在连接外网时,内部Ip地址需要转换为网关(一般为路由器Ip地址)(端口号也需要相应的转换)     如: ...

  4. 路由器port触发与转发---Port Forwarding & Port Triggering

    What is Port Triggering? If you have not read my explanation of port forwarding do so now. You can f ...

  5. OpenSSH高级功能之端口转发(Port Forwarding)

    在RedHat提供的系统管理员指南中提到OpenSSH不止是一个安全shell,它还具有X11转发(X11 Forwarding)和端口转发(Port Forwarding)的功能.X11功能一般用于 ...

  6. NAT&Port Forwarding&Port Triggering

    NAT     Nat,网络地址转换协议.主要功能是实现局域网内的本地主机与外网通信.     在连接外网时,内部Ip地址须要转换为网关(一般为路由器Ip地址)(port号也须要对应的转换)     ...

  7. How to do SSH Tunneling (Port Forwarding)

    How to do SSH Tunneling (Port Forwarding) In this post we will see how ssh works?, what is SSH tunne ...

  8. 使用Port Forwarding连接k8s集群的pod(redis、mysql等)

    一. 创建Redis的deployment和service 1. 创建Redis deployment redis-master-deployment.yaml  apiVersion: apps/v ...

  9. 端口转发 Port Forwarding (一)

    0x00First 最近发现一些好用的端口转发工具和技巧,计划认真梳理一下 SSH.NC.LCX.EW.FRP 0x01 SSH隧道端口转发 目前利用SSH隧道(SSH tunneling)进行端口转 ...

随机推荐

  1. Redis 存储字符串和对象

    今天用redis存储,发现客户端jedis提供的存储方法中存储的类型只有String和byte数据,没有能够存储对象的,网上发现可以序列化存储对象.这就开始了我第一次序列化之旅.     1 测试类 ...

  2. 迅为IMX6Q四核核心板商业级|工业级|IMX6Plus版本|IMX6DL双核核心板

    IMX6Q处理器:兼容单核,双核,工业级,汽车级,IMX6Q最新Plus版本,共用同一底板,高端产品无忧. i.MX6系列针对消费电子.工业控制和汽车应用领域,它将ARM Cortex-A9架构的高功 ...

  3. mysql-scott用户的表的创建

    /* 功能:创建 scott 数据库中的 dept 表 */ create table dept( deptno int unsigned auto_increment primary key COM ...

  4. WPF学习- AllowDrop 用户控件启用拖放功能

    知识点: 创建自定义用户控件(UserControl) 使用户控件成为拖动源 使用户控件成为放置目标 使面板能够接收从用户控件放置的数据 创建项目: 1.新建WPF项目(Wpf-AllowDrop) ...

  5. VUE scoped css 局部css内嵌样式方法 >>>

    <style scoped> .ivu-carousel >>> button { background-color: buttonface;} .demo-carous ...

  6. Perl字符集就是方括号(或称中括号)里一连串可能的字符,只匹配单一字符,该单一字符可以是字符集里的任何一个,“-”在字符集里有特殊含义:表示某个范围的字符。而字符集意外的连字符不具有特殊意义。

    Perl字符集就是方括号(或称中括号)里一连串可能的字符,只匹配单一字符,该单一字符可以是字符集里的任何一个,“-”在字符集里有特殊含义:表示某个范围的字符.而字符集意外的连字符不具有特殊意义.

  7. ORACLE中的游标Cursor总结

    游标(Cursor):用来查询数据库,获取记录集合(结果集)的指针,可以让开发者一次访问一行结果集,在每条结果集上作操作. 游标可分为: 1.       静态游标:分为显式(explicit)游标和 ...

  8. h5 中MP3 播放暂停 jq

    <!--音乐--> <div id="music"> <img src="../img/music.gif" class=&quo ...

  9. Linux从入门到适应(一):VSCode C++环境配置

    作为在Windows环境下习惯使用Visual Studio IDE的人,对于Linux环境下的Vim编辑使用十分难受,虽然网上很多人说vim非常牛逼和强大,但是我更加习惯于使用VS code的界面, ...

  10. 用1天快速上手org-mode(windows系统)

    Table of Contents 1. 选择Emacs的理由--Org-mode 1.1. 现状(基于本人现有软件的使用) 1.2. 理念(够用才好) 1.3. 学习过程(少走弯路) 2. 快速安装 ...