Tagged Questions
0
votes
0answers
76 views
Iptables: deny all traffic from IP except for ports 80, 22222, 22223
I've got 2 servers:
ClearOS
external interface 192.168.1.90
internal interface 192.168.3.1
Ubuntu Server:
connected to ClearOS to IP 192.168.3.90
I need to deny all traffic from IP ...
0
votes
1answer
97 views
SSH connection refused when connecting remotly
I set up my ubuntu server and it can connect to itself when running "ssh localhost". However, when I run Putty on windows 8 I get a "connection refused" error.
I have, to the best of my ability:
...
1
vote
0answers
67 views
ssh client times out to some servers, works on others
I have a strange problem and I'm not sure where to begin. My ssh client works on some servers but times out on others.
Obviously, I checked that the servers are accessible via ssh from other ...
1
vote
0answers
216 views
How to find out what is blocking a port
I have 3 machines:
Machine A - local network
Machine B - local network
Machine C - external network
Local network has a dynamic IP and Dyndns is set up to forward it.
I have ssh on Machine B ...
0
votes
0answers
103 views
APF Firewall makes SSH hang sometimes
I noticed that when apf-firewall is turned on, then my ssh sessions are somethings hanging or closing.
It happens when:
I leave the ssh console alone for some time - Then the connection closes
I ...
1
vote
1answer
1k views
Installed Xubuntu desktop on Ubuntu 12.04 server and now can't connect via SSH
I have a ubuntu 12.04 server that I could connect to fine using ssh over the internet. I installed the xubuntu desktop on it, didn't change any settings, then suddenly ssh stopped working.
I can ...
2
votes
2answers
638 views
How do I set up a linux proxy for my mac
As my title suggest, I would like to set up a proxy in linux. The client that I'm using is a mac osx lion. I think I understand the theory but I keep hitting roadblocks.
I started using set proxy ...
0
votes
1answer
686 views
Cannot ping between computers, but I can connect (only one way though)
I am new using Linux, so I would really appreciate a simple as possible answer.
I cannot ping between two computers, neither to nor from. I can ssh from one computer to another, but not the other way ...
2
votes
1answer
669 views
Configure firewall (Shorewall/UFW) to allow traffic for services on an Ubuntu Server
I have an Ubuntu Server 11.04 x64 which I want to secure.
The server will be open to Internet and I want to be able to SSH/SFTP into the machine and the SSH-server runs on a custom set port. I also ...
8
votes
2answers
3k views
How to set up an Ubuntu 10.04 machine to accept ssh requests only from within the local network?
I am about to install 10.04 (from bare metal to replace 9.04) and I want to set it up so that I can shh into the machine, but only from other machines on my local network. (I.e., I want to reject all ...
