Nitebirdz wrote:
> On Tue, 29 Aug 2000, Jonathan Wilson wrote:
>
> > Howdy,
> >
> > I have downloaded the latest non-commercial ssh rpm from www.ssh.com 's man
> > ftp site, and it installed fine, and I used "setup" to make sure it will
> > start at boot up.
> >
> > I rebooted, and according to the initscripts (watching the console during
> > boot) it came on just fine, but if I try to use putty from windows I get a
> > can't-connect error, and if I try it from linux I get:
> >
> > jw@bismuth:~ > ssh 192.168.0.80
> > Connection closed by remote host.
> >
> >
> > also, ps -aux |grep ssh turns up nothing on the RH bax, whereas on my
> > [working] SuSE box it returns this:
> >
> > jw@bismuth:~ > ps -aux | grep ssh
> > root 206 0.0 0.8 1612 680 ? S Aug28 0:03 /usr/sbin/sshd
> > root 2075 0.0 1.6 2016 1316 ? S 09:08 0:02 /usr/sbin/sshd
> > root 2499 0.0 1.6 2000 1304 ? S 13:14 0:00 /usr/sbin/sshd
> > jw 3006 0.0 0.6 1256 512 pts/1 S 14:55 0:00 grep ssh
> >
> >
> > also note:
> >
> > Aug 30 03:53:44 garnet sshd2[621]: connection from "192.168.0.70"
> > Aug 30 03:53:49 garnet sshd2[831]: DNS lookup failed for "192.168.0.70".
> > Aug 30 03:53:49 garnet sshd2[831]: FATAL ERROR: Executing ssh1 in
> > compatibility mode failed.
> >
> >
> > what's up with this? What do I need to do to get it working?
> >
>
> It seems to me that sshd is definitely not running in your Red Hat box,
> since it doesn't show in the process table. You may want to run the
> following command and reply with the output:
>
> ps auxw | grep sshd
>
> If the daemon is not running, I'd check the /var/log/messages for clues as
> to what is failing. Also keep in mind that putty may not be compatible
> with ssh2. I don't know whether it is or not, I'm just bringing that up
> as a possibility.
>
> Other things that you can try:
>
> telnet [redhatbox] 22
>
> Does it even establish a connection to the server? It should time out
> after a while because no encrypted keys are being exchanged, but it should
> at least establish a connection through that port.
>
> netstat | grep ssh
>
> This other command should show if there is any daemon listening on port
> 22, and also if there is already any established connection.
If it is not running and no messages in the logs take a look at the directories
under /etc/rc.d the rc*.d dir should have a sybmolic link in there to
/etc/rc.d/init.d/sshd make sure it is there.
as far as the :
also note:
Aug 30 03:53:44 garnet sshd2[621]: connection from "192.168.0.70"
Aug 30 03:53:49 garnet sshd2[831]: DNS lookup failed for "192.168.0.70".
Aug 30 03:53:49 garnet sshd2[831]: FATAL ERROR: Executing ssh1 in
compatibility mode failed.
looks like a reverse lookup failed. What is the DNS setup like can you resolve
the host you are conncting to (by name and IP ) from the ssh server?
Bret
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