Re: ssh login lag

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DNS is not properly setup at your place it would appear.
{^_^}
----- Original Message ----- From: "Arun Binaykia" <arun@xxxxxxxxxxxx>


You are blocking any incoming DNS packets by blocking udp. I believe
sshd tries to lookup the hostname of the ipaddress, it times out in few
seconds, this causes the lag. This can also happen if
your /etc/resolv.conf is pointing to unresponsive servers.

Following are the following fixes.

-> make "UseDNS no" in sshd_config

-> allow DNS from iptables AND verify /etc/resolv.conf

HTH
Arun

On Thu, 2006-05-25 at 00:37 -0700, atomi wrote:
I've got a pretty bare bones system. Headless Fedora Core 5
My problem occurs when I login via putty through SSH,
after I've entered my password there is an ugly lag...

here here is my IPTABLES:

*filter :OUTPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:FIREWALL-INPUT - [0:0]
:INPUT ACCEPT [0:0]
-A INPUT -j FIREWALL-INPUT

-A FIREWALL-INPUT -p tcp --dport ssh -j ACCEPT
-A FIREWALL-INPUT -p tcp -m tcp -j REJECT -A FIREWALL-INPUT -p udp -m udp -j REJECT
COMMIT

so, alright, pretty simple huh; anyone know why the lag monster
appears?
ANY insight i think would help.
Thanks guys,
atomi.
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