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Post Opening Ports 
 
hello,

maybe someone here can help  me solve one of my problems that is not icy or phpbb or even MG style related

i m wondering how to open ports on a unix based host(development package with SSH access) and also ..do i need a dedicated IP for it or is a shared IP good enough?

i hope someone here can explain this in a simple way to me because i could obviously not find info on this topic that was simple enough for me to understand or get something working

thnx in advance, ..Joshua203
 




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Post Re: Opening Ports 
 
Sorry I have no experience with SSH and opening ports.

May I ask why you would open some ports? What is your goal?


P.S.: I will ask for help to another person to check if he could help with this.
 




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Post Re: Opening Ports 
 
well it's because i would like to test run some stuff i used to run 24/7 on my home machine ..one example would be a chat server on a a p2p network.
starting these apps is not the problem... connecting them is the problem

asking it here was just a shot in the dark and i might have someone in my msn now that should be able to help me with this.. i hope

if he is not able to help i might send you a PM with more details, thnx MG
 




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Post Re: Opening Ports 
 
Joshua203 wrote: [View Post]
...i m wondering how to open ports on a unix based host(development package with SSH access) and also ..do i need a dedicated IP for it or is a shared IP good enough?


How did you configure sshd? Did you use the distro's packages manager?

What do you mean for "dedicated IP", a static IP?
 




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Post Re: Opening Ports 
 
Hi Buldo,

buldo wrote: [View Post]
How did you configure sshd? Did you use the distro's packages manager?


i ve used putty, sshterm and some available stuff in my cpanel (i use the most simple login for now..no keys or anything), i m all new to this but i managed to connect after reading about a changed ssh port on my server, i even manage to start some stuff on this limited knowledge, but no connections are posible yet

Buldo wrote: 
What do you mean for "dedicated IP", a static IP?


i mean at this moment i m on a shared ip (many users on the same ip) pretty static but not private, if i don t need a private/dedicated ip i really don't want to order it, eventhough it would n't be very expensive

i think i have to modify some mapping file but how and wich one ?

thnx for responding,    ..Joshua203
 




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Post Re: Opening Ports 
 
Joshua203 wrote: [View Post]
...i managed to connect after reading about a changed ssh port on my server, i even manage to start some stuff on this limited knowledge, but no connections are posible yet
...
i think i have to modify some mapping file but how and wich one ?


I don't understand if you want or have to modify SSH's default port (22), in every case the file you have to lookin' in is "/etc/ssh/sshd_config" at "port xx" line you can choose the port to use for SSH daemon.
You must restart the service if you change something in that config file.

Hope it helps you!
 




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Post Re: Opening Ports 
 
no i don t think this is what i mean, my ssh can allready connect on 556 (port of choice of my host, i don t know why).

what i mean is .. i need to open ports for a program .. example wcs.bin port 6900 udp and tcp, so the hostserver knows where to allow traffic to go if coming in on this port

thanks for trying to help me anyway Buldo
 




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Post Re: Opening Ports 
 
Joshua203 wrote: [View Post]
what i mean is .. i need to open ports for a program .. example wcs.bin port 6900 udp and tcp, so the hostserver knows where to allow traffic to go if coming in on this port


"man iptables" maybe the answer...
Just have a look to the examples on man pages, I suggest you to make your tests on virtual/physical machine before
 




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Post Re: Opening Ports 
 
thanks Buldo...this looks like it may be what i m searching .. i see i got a lot of reading to do now  
 




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Post Re: Opening Ports 
 
Joshua203 wrote: [View Post]
thanks Buldo...this looks like it may be what i m searching .. i see i got a lot of reading to do now  


You can try to start from this basic rules:

Code: [Download] [Hide]
  1. iptables -A INPUT -p tcp --dport 6900 -j ACCEPT  
  2. iptables -A INPUT -p udp --dport 6900 -j ACCEPT 

 




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