Re: sshd not working

[Trygve Selmer]

Bob Tennent wrote:
> I posted this some time ago:
>
>   I installed Fedora 3 on a friend's computer. It's working fine but
>   I thought I would set up remote access for myself to clear up any
>   problems that might arise. The computer is on a local network behind
>   an ADSL modem configured as a firewall and router. So I configured
>   the router to forward port 22 to the Linux box. I believe I can
>   reach the Linux box because I get a password dialogue. But it's not
>   accepting what I know is the proper password. I haven't changed the
>   default /etc/ssh/sshd_config. The sshd daemon is running. What have I
>   forgotten?
>
> It was suggested that 
>
> PermitRootLogin yes 
>
> was needed in sshd_config. But this makes no difference and attempting
> to log in as a non-root user also fails. The sshd server allows me
> to log in from another computer on the LAN. According to the modem
> manufacturer's support, the modem itself doesn't run sshd and the
> problem is that sshd is "not configured correctly for NAT". Can anyone
> suggest what configuration options might be relevant in this situation?

Hi Bob,

Many distros have tcpwrapper compiled into sshd. Try setting up
/etc/hosts.allow and /etc/hosts.deny, see "man hosts_access" for details.