Looking for help with a VPS config. I am a web developer that is trying to configure a 64 bit Ubuntu VPS. I changed the SSH port to 30000, added a user with all privileges and have set up the IPtables using the following script
*filter # Allows all loopback (lo0) traffic and drop all traffic to 127/8 that doesn't use lo0 -A INPUT -i lo -j ACCEPT -A INPUT -i ! lo -d 127.0.0.0/8 -j REJECT # Accepts all established inbound connections -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT # Allows all outbound traffic # You could modify this to only allow certain traffic # This is in addition to allowing established and related traffic as listed above -A OUTPUT -j ACCEPT # Allows HTTP and HTTPS connections from anywhere (the normal ports for websites) -A INPUT -p tcp --dport 80 -j ACCEPT -A INPUT -p tcp --dport 443 -j ACCEPT # Allows SSH connections from trusted-host only - drop the rest # # CHANGE THE TRUSTED-HOST DETAILS AFTER THE WORD --source # THE -dport NUMBER IS THE SAME ONE YOU SET UP IN THE SSHD_CONFIG FILE # -A INPUT -p tcp -m state --state NEW --source mydomain.com --dport 30000 -j ACCEPT -A INPUT -p tcp --dport 30000 -j DROP # Create time lock for non-wanted SSH attempts of a period of 1 minute -A INPUT -p tcp -m state --syn --state NEW --dport 30000 -m limit --limit 1/minute --limit-burst 1 -j ACCEPT -A INPUT -p tcp -m state --syn --state NEW --dport 30000 -j DROP # Allow ping -A INPUT -p icmp -m icmp --icmp-type 8 -j ACCEPT # log iptables denied calls -A INPUT -m limit --limit 5/min -j LOG --log-prefix "iptables denied: " --log-level 7 # Reject all other inbound - default deny unless explicitly allowed policy -A INPUT -j REJECT -A FORWARD -j REJECT COMMIT
When I try to SSH using the standard ssh command I get a connection refused error which is to be expected but when I try this command, the terminal seems to hang and becomes unresponsive and no connection is made.
ssh -p 30000 user@ipaddress
Am I doing something blatantly obvious with the ssh command or is there an error with the iptables script?
All help is very much appreciated!