The prerequisite is: HostA: (can access public machine, can t access hostA and hostB) CentOS 7 HostB: (private machine, I can login, and it can access hostA and hostC, ) CentOS 7 HostC:...

I m accessing a remote database using a local-to-remote port forwarding from my windows box. It works like a charm using putty for port forwarding but it fails when I try to forward using Ruby/Net::...

How to determine if I can write the given number of bytes to a filehandle (socket actually)? (Alternatively, how to "unread" the data I had read from other filehandle?) I want something like: n = ...

I m trying to write some Python code that will establish an invisible relay between two TCP sockets. My current technique is to set up two threads, each one reading and subsequently writing 1kb of ...

I am trying to use ssh port forwarding to defeat corporate firewall: ssh git@GIT_SERVER -L9418:GIT_SERVER:9418 and in another terminal I run git clone git://localhost:repositories/project.git But ...

i am developing a facebook app and i am using for that facebooker plugin and webrick server. i have configured correctly my router to froward ports to my machine for 2 ports (80 and 3000) the apache ...

I have the case where I have a public facing service sitting out on the internet and I would like the ability for the server to contact specifically design embedded devices that are sitting in normal ...

I m extremely excited about html5 s websockets spec but I have a concern. These days everyone is operating off of some network, with routers (wired/wireless) that have built in firewalls, windows has ...