[CentOS] Moving sshd listen port

Mike McCarthy, W1NR sysop at w1nr.net
Wed Jul 9 15:10:50 UTC 2014


Not using IPTables. Using firewalld and yes, I opened the new port there
as well.

Mike

On 07/09/2014 11:08 AM, Robert Moskowitz wrote:
>
> On 07/09/2014 10:54 AM, Mike McCarthy, W1NR wrote:
> SELinux is not running. Any other ideas?
>
> > Did you update your IPTable?  I change my SSHD port all the time.
> One of
> > the first things I do on setting up a server.  I know this is just
> > obfusication, but it stops the robot noise.  There are five steps:
>
> > edit /etc/ssh/sshd_config
> > edit IPtables
> > add ssh policy for new port
> > restart sshd
> > restart iptables
>
>
> Mike
>
> On 07/09/2014 10:50 AM, Mike McCarthy, W1NR wrote:
> >>> This was a "minimal" install for a virtual server and semanage is not
> >>> available so the command doesn't work...
> >>>
> >>> What package is semanage in?
> >>>
> >>> Mike
> >>>
> >>> On 07/09/2014 10:45 AM, Jonathan Billings wrote:
> >>>> On Wed, Jul 09, 2014 at 10:35:12AM -0400, Mike McCarthy, W1NR wrote:
> >>>>> I am having a problem getting sshd to run after changing it's
> default
> >>>>> port. I edit sshd_config and set the desired port, open it with
> >>>>> firewall-cmd and then issue a systemctl start sshd. No error gets
> >>>>> reported on the console but the following is logged in /var/messages
> >>>>>
> >>>>>      sshd.service: main process exited, code=exited, status=255/n/a
> >>>>>
> >>>>> Not a very helpful error message. Sounds like I should report a bug?
> >>>> If you have SELinux enabled, it will block sshd from listening on a
> >>>> port other than what is described in the policy.  You can add the
> >>>> additional port by running:
> >>>> semanage port -a -t ssh_port_t -p tcp $PORTNUM
> >>>> (replace $PORTNUM with the new port number you chose)
> >>>
> >>>
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