I had the same problem with 4.3 on one system out of 4 I recently built. I checked iptables, /etc/sysconfig/networks , /etc/sysconfig/network-scripts/ifcfg-eth0 (and eth1) , /etc/resolv.conf etc etc.
What was strange is I could ping , nslookup etc from that system but could never ssh to it. Same error message your posting.
I ended up using a mondorescue disk from another system that worked fine and then fixed the configs for the different network configuration.
If you do find out the root cause of that please share it as it bugged me not actually finding out why the same configuration process on 4 systems failed on 1 system (all the same exact hardware as well).
In the end I attributed the root cause to the interface between the keyboard and the chair (me) as I could not find another cause.
-Greg
-----Original Message----- From: centos-bounces@centos.org [mailto:centos-bounces@centos.org] On Behalf Of JC Sent: Thursday, April 27, 2006 9:25 AM To: CentOS mailing list Subject: Re: [CentOS] Problems with SSH
try to ping from A to B and from B to A. If you can't, then look in to DNS problem.
If you can ping, then check for any firewall (selinux) and port (22 for ssh)
Hope that help, JC
On Thu, 27 Apr 2006, it was written:
Hi, i have 2 linux machines on a corporative network, from
my machine(Local Machine)i Have ssh acces to the serer typing ssh user@nombreservidor
But when i try to connect from the server to my local
machine i have a message "name or service not known", it doesn`t matter if i do it ss user or as root
If i type ssh user@iplocal i have a message "no route to host" it already verified that both systems(local and server)
have SSH running
by typing service sshd status, and the response is "ssh is
running (pidxxxx)
The OS in the local machine is CentOS 4.3 in the server is
WhiteBox 4
Anyone have aan idea? please, I need help Thanks
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King, John (Greg) (LMIT-HOU)