Re: slow ssh prompt

[binary dreamer <dreamer.binary@gmail.com>]

On 04/11/2013 02:46 PM, Lars Noodén wrote:
> On 4/11/13 1:45 PM, binary dreamer wrote:
> > Hi. I am running debian 6.0.7 and i am facing a problem with slow
> > response when asking to ssh. once i do a ssh root@192.168.1.77 then
> > the prompt for the passwd it takes around 30 secs to respond. after
> > that everything is fine. is there a way to fix that delay?
> As mentioned, it might be the DNS lookup.
>
> Is your client machine properly registered in DNS for the server to be
> able to easily look it up?  If not, you might try changing "UseDNS" from
> "yes" to "no" in /etc/ssh/sshd_config.
>
> Also, it's not such a good idea to leave remote root logins enabled.  It
> is possible to tune sudo vi /etc/sudoers so that you can accomplish a
> specific task without giving away access to the whole show.
>
> Regards,
> /Lars
hi.

thanks a lot for the reply.
i am afraid i do not see the usedns. here is the output

/etc/ssh# more ssh_config

# This is the ssh client system-wide configuration file.  See
# ssh_config(5) for more information.  This file provides defaults for
# users, and the values can be changed in per-user configuration files
# or on the command line.

# Configuration data is parsed as follows:
#  1. command line options
#  2. user-specific file
#  3. system-wide file
# Any configuration value is only changed the first time it is set.
# Thus, host-specific definitions should be at the beginning of the
# configuration file, and defaults at the end.

# Site-wide defaults for some commonly used options.  For a comprehensive
# list of available options, their meanings and defaults, please see the
# ssh_config(5) man page.

Host *
#   ForwardAgent no
#   ForwardX11 no
#   ForwardX11Trusted yes
#   RhostsRSAAuthentication no
#   RSAAuthentication yes
#   PasswordAuthentication yes
#   HostbasedAuthentication no
#   GSSAPIAuthentication no
#   GSSAPIDelegateCredentials no
#   GSSAPIKeyExchange no
#   GSSAPITrustDNS no
#   BatchMode no
#   CheckHostIP yes
#   AddressFamily any
#   ConnectTimeout 0
#   StrictHostKeyChecking ask
#   IdentityFile ~/.ssh/identity
#   IdentityFile ~/.ssh/id_rsa
#   IdentityFile ~/.ssh/id_dsa
#   Port 22
#   Protocol 2,1
#   Cipher 3des
#   Ciphers 
aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc
#   MACs hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-ripemd160
#   EscapeChar ~
#   Tunnel no
#   TunnelDevice any:any
#   PermitLocalCommand no
#   VisualHostKey no
#   ProxyCommand ssh -q -W %h:%p gateway.example.com
    SendEnv LANG LC_*
    HashKnownHosts yes
    GSSAPIAuthentication yes
    GSSAPIDelegateCredentials no

any ideas?