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Groups > comp.os.linux.networking > #4675

Re: Delay when SSH'ing into some systems in my LAN

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On Tue, 21 Jul 2020 16:28:57 +0000, William Unruh wrote:

> On 2020-07-21, S.K.R. de Jong <SKRdJ@nowhere.net> wrote:
>> 	This started happening recently, with no apparent reason.
>>
>> 	I have systems A, B, C, D in my LAN. When I SSH from A into B the
>> connection gets established immediately. However when I do it from A to
>> C I get the following SSH traces in A:
>>
>> 	OpenSSH_7.4p1, OpenSSL 1.0.2u  20 Dec 2019 debug1: Reading
>> 	configuration data /home/xyz/.ssh/config debug1: Reading 
configuration
>> 	data /etc/ssh/ssh_config debug2: resolving "C" port 22
> 
> Try to ssh into C using C's IP address rather than name.
> If that goes immediately Try putting C's name into A's /etc/hosts Since
> it seems to be A that is complaining, try putting C's name and address
> into /etc/hosts on A.

	Thanks. When using IP addresses instead, or entering the relevant 
names into /etc/hosts, the delay disappears.

> It seem's that it is the reverse dns that is problematic.

	I would agree.

> Note that in the above A,B,C,D could be names or they could be IP
> addresses. It might help to actually give us the exact log lines, rather
> than the edited ones.

	They were meant to be names, not IP addresses.

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Thread

Delay when SSH'ing into some systems in my LAN "S.K.R. de Jong" <SKRdJ@nowhere.net> - 2020-07-21 15:27 +0000
  Re: Delay when SSH'ing into some systems in my LAN William Unruh <unruh@invalid.ca> - 2020-07-21 16:28 +0000
    Re: Delay when SSH'ing into some systems in my LAN "S.K.R. de Jong" <SKRdJ@nowhere.net> - 2020-07-21 18:29 +0000
      Re: Delay when SSH'ing into some systems in my LAN William Unruh <unruh@invalid.ca> - 2020-07-21 19:52 +0000
    Re: Delay when SSH'ing into some systems in my LAN "S.K.R. de Jong" <SKRdJ@nowhere.net> - 2020-07-21 19:33 +0000

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