SSH question

[Holder, Bill]

Hi there,
 
    you need to setup the dynamic DNS support in your DHCP client on
your Redhat boxes. I'm sorry I can't be more specific, it's been a while
since I did it, but I'm sure Google will point you at the information
you need.
 
 
/B
 

________________________________

From: redhat-sysadmin-list-bounces at redhat.com
[mailto:redhat-sysadmin-list-bounces at redhat.com] On Behalf Of Lopez,
Denise
Sent: Thursday, 25 October 2007 9:44 AM
To: redhat-sysadmin-list at redhat.com
Subject: RE: SSH question



Thanks for your reply Richard,

 

The windows boxes are using DHCP but they have static DHCP reservations
because they are administrative boxes so they always get the same IP
address.  

 

I think it has something to do on the RHEL side and am just not sure
what is happening.

 

Denise Lopez

 

 

From: redhat-sysadmin-list-bounces at redhat.com
[mailto:redhat-sysadmin-list-bounces at redhat.com] On Behalf Of Richard
Riley
Sent: Wednesday, October 24, 2007 12:26 PM
To: redhat-sysadmin-list at redhat.com
Subject: RE: SSH question

 

Sounds like the windows boxes are using dhcp to get their IP address.
In this case, they may not always have the same IP address, so you
should use their hostname instead of an IP address in your sshd_config
file.  Since the windows boxes automatically update their DNS
registration, their hostname, via DNS lookup, will always match the IP
address they are using when a connection attempt is made.

Richard Riley
System Administrator
Email: rriley at procuri.com <mailto:rgambotz at procuri.com> 

Procuri Inc.
www.procuri.com <http://www.procuri.com> 

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________________________________

From: redhat-sysadmin-list-bounces at redhat.com
[mailto:redhat-sysadmin-list-bounces at redhat.com] On Behalf Of Lopez,
Denise
Sent: Wednesday, October 24, 2007 2:33 PM
To: redhat-sysadmin-list at redhat.com
Subject: SSH question

 

Hi all,

 

I am in a mixed environment and I have 2 admins that connect to my RHEL
AS4 machines using windows.  In their windows setup, there is a setting
"Register this connections addresses in DNS" which registers the
computer name to the IP address.  

 

For my Linux system there is no such setting that I am aware of. I have
SSH configures so that each admin can only SSH to the server from their
administrative desktop IP address. So in the sshd_config file I have 
denise at 192.168.1.1.  

 

My question is this:  For the admins running windows sometimes I need to
add the DNS name in addition to the IP address in the sshd_config file.

 

Does anyone know why that is?  Also I wonder if I had an entry in DNS
for my Linux system if I would need the additional entry as well.

 

Thanks in advance.

 

Denise Lopez

UCLA - Center for Digital Humanities

Network Services

Linux Systems Engineer

337 Charles E. Young Drive East

PPB 1020

Los Angeles, CA 90095-1499

310/206-8216

 

 


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