Opening Ports in Fedora

[willnoit]

I have Fedora 14, and am trying to connect to my Fedora machine using a netbook that I have. For some reason, port 22 is closed on my computer. I know enough to realize this is required for SSH, and would like to open it. Does anyone know how to do this?

(Also, my netbook has Ubuntu Netbook 10.10, just in case it makes any difference)

[Lazydog]

Check and see if the firewall is running...

service iptables status

Check to see if the SSH service is running...

servie sshd status

If it is then you need to edit the firewall and add a rule to allow port 22 through

Have a look at system-config-securitylevel

[Affix]

By default sshd may not be running on your system as said above check the status

if it is off run

service sshd start

If it is on you should check your IPTables Configuration. This can be done by disabling iptables temporarily with

service iptables stop

if it is your IPTables Configuration you need to open the port using iptables

[root@fedora ~]# iptables -I INPUT -p tcp --dport 25 -j ACCEPT
[root@fedora ~]# iptables save

[Lazydog]

If it is on you should check your IPTables Configuration. This can be done by disabling iptables temporarily with

Why the temporary stopping of the firewall? You think this is necessary? You can check your rules without shutting off the firewall.

Some ways to check your firewall;

service iptables status
or
iptables -L

if it is your IPTables Configuration you need to open the port using iptables

[root@fedora ~]# iptables -I INPUT -p tcp --dport 25 -j ACCEPT

While I can understand your excitement at maybe being able to help someone, you should really have an understanding of what you are asking them to do. The default port for SSH is 22 not 25. This can also be changed by the users as long as they understand how and where to make the change.

Here is a Port Listing for you to look over.

Also you should start thinking about using a STATEFUL firewall that uses NEW, ESTABLISHED, RELATED and INVALID rules.
See this TUTORIAL on this topic.

[root@fedora ~]# iptables save

RH does not save the firewall rules like this unless they have recently changed something. You should use

service iptables save

Which will store the current running firewall rules in /etc/sysconf/iptables.
When the firewall is restarted with service iptables start/restart this file is read.

A lot of people believe in running a script to start and configure their firewalls. I believe that you can use a script to configure the firewall at first then you should save and restore the rules using the system calls as designed.

[Affix]

While I can understand your excitement at maybe being able to help someone, you should really have an understanding of what you are asking them to do. The default port for SSH is 22 not 25. This can also be changed by the users as long as they understand how and where to make the change.
.

Actually 25 Was a typo I know what most default ports are for the most common services