Sorry my Bad. The local dhcp server of the router is broken and causes a deny for the dhcp-ack for about 5 secs and that causes the machine to drop the IP lease for about 5 secs. If someone want OpenSSH v6.1p1 I have a RPM on my repo. Thanks, Eliezer On 1/3/2013 9:45 AM, Eliezer Croitoru wrote: > Hey there, > > I just replaced long lived Gentoo to a Centos 6.3 on 2 servers. > Since the move I had troubles with ssh open sessions. > I am connecting from a windows machine via putty and then all of a > sudden it saying something about connection closing. > The OpenSSH version is: openssh-server-5.3p1-81.el6.x86_64.rpm > I tired to configure: > tcp_keep_alive > TCPKeepAlive yes > ClientAliveInterval 240 > ClientAliveCountMax 50 > > Each one of them or all together seems to not solve the problem. > It's not iptables issue since it was stopped and disabled. > > If someone have an idea of what can be done or checked I will be happy > to hear about it. > > For now I have created a custom OpenSSH-6.1p1 RPM just in case it will > might help. > > Both server has the same issue while another Fedora machine runs by > which doesn't have the same issues. > > They are both connected to the same switch and seems to be fine. > > Thanks, > Eliezer > _______________________________________________ > CentOS mailing list > CentOS@xxxxxxxxxx > http://lists.centos.org/mailman/listinfo/centos > _______________________________________________ CentOS mailing list CentOS@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos