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Port forwarding details needed
Posted: Thu Oct 28, 2010 8:48 pm
by asharpham
I get lost every time I try to follow instructions on port forwarding in linux. I've successfully done it in Windows but altering files in the bowels of Ubuntu leaves me very nervous.
My current port is shown as 51413 and is "closed". How do I set an "open" port? I've gone through this process in Windows when I was using Bitcomet and it was easy. In linux, however, this is mind-boggling. Can someone please help me with step-by-step ibnstructions because so far all such instructions have resulted in reaching a point where my files/details don't match the instructions.
I'm using Ubuntu 9.10 and Transmission 2.01 (10898). Thanks in advance.
Re: Port forwarding details needed
Posted: Thu Oct 28, 2010 10:15 pm
by rb07
asharpham wrote:My current port is shown as 51413 and is "closed". How do I set an "open" port?
Its not done at the operating system unless you have a firewall in it... hard to tell with the info you are giving, does Ubuntu come with an enabled firewall out of the box? I don't use Ubuntu, but I've seen many other Linux distributions and they have a firewall, but not enabled by default (like paranoid Microsoft does with Windows).
Take a look at the relevant Wiki section
https://trac.transmissionbt.com/wiki/PortClosed; feel free to ask the gory details here
Re: Port forwarding details needed
Posted: Thu Nov 04, 2010 9:30 pm
by demons33derxx
Ubuntu doesnt have a firewall as far as Im aware.
The OP might actually need to open his router firewall.
Re: Port forwarding details needed
Posted: Fri Nov 05, 2010 3:44 am
by rb07
demons33derxx wrote:Ubuntu doesnt have a firewall as far as Im aware.
All Linux distros have a firewall since it is built-in the kernel.
The question really was if it is enabled, normally it isn't except for those distribution that claim to be "hardened".
Re: Port forwarding details needed
Posted: Fri Dec 31, 2010 7:48 am
by lakrigg
Could be iptables perhaps.
run the command
'ps aux |grep iptables'
If it returns with a result showing that iptables is running, just try and kill it.
'killall iptables'
Also connect to your router and enable uPnP , this will allow your workstations to communicate on required ports, rather than have to forward individual ports.
Generally tho, iptables will not block this, and isnt locked down on ubuntu install. So it's likely your router that is closed.